Probably the longest “Rambling Rook” composition around

[Hobacle]

[pgn][Event "2021.04.26"]
[Site ""]
[Date "Hobacle"]
[Round ""]
[White "#174(?)"]
[Black ""]
[Result "1-0"]
[FEN "k7/4R3/2PBQ3/1RBB2r1/7K/4NB1B/4N2B/4NB1B b - - 0 1"]
[SetUp "1"]

1... Rg4+ 2. Kh5 Rg5+ 3. Kh6 Rg6+ 4. Kh7 Rg7+ 5. Kh8 Rh7+ 6. Kg8 Rg7+ 7. Kf8
Rg8+ 8. Kf7 Rf8+ 9. Kg6 Rf6+ 10. Kh5 Rf5+ 11. Kh4 Rf4+ 12. Ng4 Rxg4+ 13. Kh5
Rg5+ 14. Kh6 Rg6+ 15. Kh7 Rg7+ 16. Kh8 Rh7+ 17. Kg8 Rg7+ 18. Kf8 Rg8+ 19. Kf7
Rf8+ 20. Kg6 Rf6+ 21. Kh5 Rf5+ 22. Kh4 Rf4+ 23. Bfg4 Rxg4+ 24. Kh5 Rg5+ 25. Kh6
Rg6+ 26. Kh7 Rg7+ 27. Kh8 Rh7+ 28. Kg8 Rg7+ 29. Kf8 Rg8+ 30. Kf7 Rf8+ 31. Kg6
Rf6+ 32. Kh5 Rf5+ 33. Kh4 Rf4+ 34. Bg4 Rxg4+ 35. Kh5 Rg5+ 36. Kh6 Rg6+ 37. Kh7
Rg7+ 38. Kh8 Rh7+ 39. Kg8 Rg7+ 40. Kf8 Rg8+ 41. Kf7 Rf8+ 42. Kg6 Rf6+ 43. Kh5
Rf5+ 44. Kh4 Rf4+ 45. Kh3 Rf3+ 46. Bdg3 Rxg3+ 47. Kh4 Rg4+ 48. Kh5 Rg5+ 49. Kh6
Rg6+ 50. Kh7 Rg7+ 51. Kh8 Rh7+ 52. Kg8 Rg7+ 53. Kf8 Rg8+ 54. Kf7 Rf8+ 55. Kg6
Rf6+ 56. Kh5 Rf5+ 57. Kh4 Rf4+ 58. Kh3 Rf3+ 59. Ng3 Rxg3+ 60. Kh4 Rg4+ 61. Kh5
Rg5+ 62. Kh6 Rg6+ 63. Kh7 Rg7+ 64. Kh8 Rh7+ 65. Kg8 Rg7+ 66. Kf8 Rg8+ 67. Kf7
Rf8+ 68. Kg6 Rf6+ 69. Kh5 Rf5+ 70. Kh4 Rf4+ 71. Kh3 Rf3+ 72. Bg3 Rxg3+ 73. Kh4
Rg4+ 74. Kh5 Rg5+ 75. Kh6 Rg6+ 76. Kh7 Rg7+ 77. Kh8 Rh7+ 78. Kg8 Rg7+ 79. Kf8
Rg8+ 80. Kf7 Rf8+ 81. Kg6 Rf6+ 82. Kh5 Rf5+ 83. Kh4 Rf4+ 84. Kh3 Rf3+ 85. Kh2
Rf2+ 86. Bdg2 Rxg2+ 87. Kh3 Rg3+ 88. Kh4 Rg4+ 89. Kh5 Rg5+ 90. Kh6 Rg6+ 91. Kh7
Rg7+ 92. Kh8 Rh7+ 93. Kg8 Rg7+ 94. Kf8 Rg8+ 95. Kf7 Rf8+ 96. Kg6 Rf6+ 97. Kh5
Rf5+ 98. Kh4 Rf4+ 99. Kh3 Rf3+ 100. Kh2 Rf2+ 101. Ng2 Rxg2+ 102. Kh3 Rg3+ 103.
Kh4 Rg4+ 104. Kh5 Rg5+ 105. Kh6 Rg6+ 106. Kh7 Rg7+ 107. Kh8 Rh7+ 108. Kg8 Rg7+
109. Kf8 Rg8+ 110. Kf7 Rf8+ 111. Kg6 Rf6+ 112. Kh5 Rf5+ 113. Kh4 Rf4+ 114. Kh3
Rf3+ 115. Kh2 Rf2+ 116. Bfg2 Rxg2+ 117. Kh3 Rg3+ 118. Kh4 Rg4+ 119. Kh5 Rg5+
120. Kh6 Rg6+ 121. Kh7 Rg7+ 122. Kh8 Rh7+ 123. Kg8 Rg7+ 124. Kf8 Rg8+ 125. Kf7
Rf8+ 126. Kg6 Rf6+ 127. Kh5 Rf5+ 128. Kh4 Rf4+ 129. Kh3 Rf3+ 130. Kh2 Rf2+ 131.
Bg2 Rxg2+ 132. Kh3 Rg3+ 133. Kh4 Rg4+ 134. Kh5 Rg5+ 135. Kh6 Rg6+ 136. Kh7 Rg7+
137. Kh8 Rh7+ 138. Kg8 Rg7+ 139. Kf8 Rg8+ 140. Kf7 Rf8+ 141. Kg6 Rf6+ 142. Kh5
Rf5+ 143. Kh4 Rf4+ 144. Kh3 Rf3+ 145. Kh2 Rf2+ 146. Kh1 Rh2+ 147. Kg1 Rg2+ 148.
Kf1 Rf2+ 149. Ke1 Re2+ 150. Kd1 Rd2+ 151. Kc1 Rc2+ 152. Kb1 Rb2+ 153. Ka1 Rb1+
154. Ka2 Rb2+ 155. Ka3 Rb3+ 156. Ka4 Ra3+ 157. Kb4 Ra4+ 158. Kc3 Rc4+ 159. Kd3
Rd4+ 160. Ke2 Re4+ 161. Kf1 Rf4+ 162. Bf2 Rxf2+ 163. Ke1 Re2+ 164. Kd1 Rd2+
165. Kc1 Rc2+ 166. Kb1 Rb2+ 167. Ka1 Rb1+ 168. Ka2 Rb2+ 169. Ka3 Rb3+ 170. Ka4
Ra3+ 171. Kb4 Rb3+ 172. Kc5 Rc3+ 173. Kb6 Rxc6+ 174. Qxc6+ Kb8 175. Re8# 1-0

[/pgn]

The acoustic version (no promotion):

[pgn][Event "2021.04.21"]
[Site ""]
[Date "Hobacle"]
[Round ""]
[White "#123"]
[Black ""]
[Result "1-0"]
[FEN "k5K1/4R3/2P1QrP1/1RBB2P1/6P1/6P1/1P3PP1/4NN2 b - - 0 1"]
[SetUp "1"]

1... Rf8+ 2. Kh7 Rf7+ 3. g7 Rxg7+ 4. Kh8 Rh7+ 5. Kg8 Rg7+ 6. Kf8 Rg8+ 7. Kf7
Rf8+ 8. Kg7 Rf7+ 9. Kh6 Rf6+ 10. g6 Rxg6+ 11. Kh7 Rg7+ 12. Kh8 Rh7+ 13. Kg8
Rg7+ 14. Kf8 Rg8+ 15. Kf7 Rf8+ 16. Kg6 Rf6+ 17. Kh5 Rf5+ 18. g5 Rxg5+ 19. Kh6
Rg6+ 20. Kh7 Rg7+ 21. Kh8 Rh7+ 22. Kg8 Rg7+ 23. Kf8 Rg8+ 24. Kf7 Rf8+ 25. Kg6
Rf6+ 26. Kh5 Rf5+ 27. Kh4 Rf4+ 28. g4 Rxg4+ 29. Kh5 Rg5+ 30. Kh6 Rg6+ 31. Kh7
Rg7+ 32. Kh8 Rh7+ 33. Kg8 Rg7+ 34. Kf8 Rg8+ 35. Kf7 Rf8+ 36. Kg6 Rf6+ 37. Kh5
Rf5+ 38. Kh4 Rf4+ 39. g4 Rxg4+ 40. Kh5 Rg5+ 41. Kh6 Rg6+ 42. Kh7 Rg7+ 43. Kh8
Rh7+ 44. Kg8 Rg7+ 45. Kf8 Rg8+ 46. Kf7 Rf8+ 47. Kg6 Rf6+ 48. Kh5 Rf5+ 49. Kh4
Rf4+ 50. Kh3 Rf3+ 51. Ng3 Rxg3+ 52. Kh4 Rg4+ 53. Kh5 Rg5+ 54. Kh6 Rg6+ 55. Kh7
Rg7+ 56. Kh8 Rh7+ 57. Kg8 Rg7+ 58. Kf8 Rg8+ 59. Kf7 Rf8+ 60. Kg6 Rf6+ 61. Kh5
Rf5+ 62. Kh4 Rf4+ 63. Kh3 Rf3+ 64. Kh2 Rxf2+ 65. Bg2 Rxg2+ 66. Kh3 Rg3+ 67. Kh4
Rg4+ 68. Kh5 Rg5+ 69. Kh6 Rg6+ 70. Kh7 Rg7+ 71. Kh8 Rh7+ 72. Kg8 Rg7+ 73. Kf8
Rg8+ 74. Kf7 Rf8+ 75. Kg6 Rf6+ 76. Kh5 Rf5+ 77. Kh4 Rf4+ 78. Kh3 Rf3+ 79. Kh2
Rf2+ 80. Ng2 Rxg2+ 81. Kh3 Rg3+ 82. Kh4 Rg4+ 83. Kh5 Rg5+ 84. Kh6 Rg6+ 85. Kh7
Rg7+ 86. Kh8 Rh7+ 87. Kg8 Rg7+ 88. Kf8 Rg8+ 89. Kf7 Rf8+ 90. Kg6 Rf6+ 91. Kh5
Rf5+ 92. Kh4 Rf4+ 93. Kh3 Rf3+ 94. Kh2 Rf2+ 95. Kh1 Rh2+ 96. Kg1 Rg2+ 97. Kf1
Rf2+ 98. Ke1 Re2+ 99. Kd1 Rd2+ 100. Kc1 Rc2+ 101. Kb1 Rxb2+ 102. Ka1 Rb1+ 103.
Ka2 Rb2+ 104. Ka3 Rb3+ 105. Ka4 Ra3+ 106. Kb4 Ra4+ 107. Kc3 Rc4+ 108. Kd3 Rd4+
109. Ke2 Re4+ 110. Kf1 Rf4+ 111. Bf2 Rxf2+ 112. Ke1 Re2+ 113. Kd1 Rd2+ 114. Kc1
Rc2+ 115. Kb1 Rb2+ 116. Ka1 Rb1+ 117. Ka2 Rb2+ 118. Ka3 Rb3+ 119. Ka4 Ra3+ 120.
Kb4 Ra4+ 121. Kc5 Rc4+ 122. Kb6 Rxc6+ 123. Qxc6+ Kb8 124. Re8# 1-0

[/pgn]

Maybe also the longest known 16v2 problem

[peter]

[pgn][Event "2021.04.26"]
[Site ""]
[Date "Hobacle"]
[Round ""]
[White "#174(?)"]
[Black ""]
[Result "1-0"]
[FEN "k7/4R3/2PBQ3/1RBB2r1/7K/4NB1B/4N2B/4NB1B b - - 0 1"]
[SetUp "1"]

1... Rg4+ 2. Kh5 Rg5+ 3. Kh6 Rg6+ 4. Kh7 Rg7+ 5. Kh8 Rh7+ 6. Kg8 Rg7+ 7. Kf8
Rg8+ 8. Kf7 Rf8+ 9. Kg6 Rf6+ 10. Kh5 Rf5+ 11. Kh4 Rf4+ 12. Ng4 Rxg4+ 13. Kh5
Rg5+ 14. Kh6 Rg6+ 15. Kh7 Rg7+ 16. Kh8 Rh7+ 17. Kg8 Rg7+ 18. Kf8 Rg8+ 19. Kf7
Rf8+ 20. Kg6 Rf6+ 21. Kh5 Rf5+ 22. Kh4 Rf4+ 23. Bfg4 Rxg4+ 24. Kh5 Rg5+ 25. Kh6
Rg6+ 26. Kh7 Rg7+ 27. Kh8 Rh7+ 28. Kg8 Rg7+ 29. Kf8 Rg8+ 30. Kf7 Rf8+ 31. Kg6
Rf6+ 32. Kh5 Rf5+ 33. Kh4 Rf4+ 34. Bg4 Rxg4+ 35. Kh5 Rg5+ 36. Kh6 Rg6+ 37. Kh7
Rg7+ 38. Kh8 Rh7+ 39. Kg8 Rg7+ 40. Kf8 Rg8+ 41. Kf7 Rf8+ 42. Kg6 Rf6+ 43. Kh5
Rf5+ 44. Kh4 Rf4+ 45. Kh3 Rf3+ 46. Bdg3 Rxg3+ 47. Kh4 Rg4+ 48. Kh5 Rg5+ 49. Kh6
Rg6+ 50. Kh7 Rg7+ 51. Kh8 Rh7+ 52. Kg8 Rg7+ 53. Kf8 Rg8+ 54. Kf7 Rf8+ 55. Kg6
Rf6+ 56. Kh5 Rf5+ 57. Kh4 Rf4+ 58. Kh3 Rf3+ 59. Ng3 Rxg3+ 60. Kh4 Rg4+ 61. Kh5
Rg5+ 62. Kh6 Rg6+ 63. Kh7 Rg7+ 64. Kh8 Rh7+ 65. Kg8 Rg7+ 66. Kf8 Rg8+ 67. Kf7
Rf8+ 68. Kg6 Rf6+ 69. Kh5 Rf5+ 70. Kh4 Rf4+ 71. Kh3 Rf3+ 72. Bg3 Rxg3+ 73. Kh4
Rg4+ 74. Kh5 Rg5+ 75. Kh6 Rg6+ 76. Kh7 Rg7+ 77. Kh8 Rh7+ 78. Kg8 Rg7+ 79. Kf8
Rg8+ 80. Kf7 Rf8+ 81. Kg6 Rf6+ 82. Kh5 Rf5+ 83. Kh4 Rf4+ 84. Kh3 Rf3+ 85. Kh2
Rf2+ 86. Bdg2 Rxg2+ 87. Kh3 Rg3+ 88. Kh4 Rg4+ 89. Kh5 Rg5+ 90. Kh6 Rg6+ 91. Kh7
Rg7+ 92. Kh8 Rh7+ 93. Kg8 Rg7+ 94. Kf8 Rg8+ 95. Kf7 Rf8+ 96. Kg6 Rf6+ 97. Kh5
Rf5+ 98. Kh4 Rf4+ 99. Kh3 Rf3+ 100. Kh2 Rf2+ 101. Ng2 Rxg2+ 102. Kh3 Rg3+ 103.
Kh4 Rg4+ 104. Kh5 Rg5+ 105. Kh6 Rg6+ 106. Kh7 Rg7+ 107. Kh8 Rh7+ 108. Kg8 Rg7+
109. Kf8 Rg8+ 110. Kf7 Rf8+ 111. Kg6 Rf6+ 112. Kh5 Rf5+ 113. Kh4 Rf4+ 114. Kh3
Rf3+ 115. Kh2 Rf2+ 116. Bfg2 Rxg2+ 117. Kh3 Rg3+ 118. Kh4 Rg4+ 119. Kh5 Rg5+
120. Kh6 Rg6+ 121. Kh7 Rg7+ 122. Kh8 Rh7+ 123. Kg8 Rg7+ 124. Kf8 Rg8+ 125. Kf7
Rf8+ 126. Kg6 Rf6+ 127. Kh5 Rf5+ 128. Kh4 Rf4+ 129. Kh3 Rf3+ 130. Kh2 Rf2+ 131.
Bg2 Rxg2+ 132. Kh3 Rg3+ 133. Kh4 Rg4+ 134. Kh5 Rg5+ 135. Kh6 Rg6+ 136. Kh7 Rg7+
137. Kh8 Rh7+ 138. Kg8 Rg7+ 139. Kf8 Rg8+ 140. Kf7 Rf8+ 141. Kg6 Rf6+ 142. Kh5
Rf5+ 143. Kh4 Rf4+ 144. Kh3 Rf3+ 145. Kh2 Rf2+ 146. Kh1 Rh2+ 147. Kg1 Rg2+ 148.
Kf1 Rf2+ 149. Ke1 Re2+ 150. Kd1 Rd2+ 151. Kc1 Rc2+ 152. Kb1 Rb2+ 153. Ka1 Rb1+
154. Ka2 Rb2+ 155. Ka3 Rb3+ 156. Ka4 Ra3+ 157. Kb4 Ra4+ 158. Kc3 Rc4+ 159. Kd3
Rd4+ 160. Ke2 Re4+ 161. Kf1 Rf4+ 162. Bf2 Rxf2+ 163. Ke1 Re2+ 164. Kd1 Rd2+
165. Kc1 Rc2+ 166. Kb1 Rb2+ 167. Ka1 Rb1+ 168. Ka2 Rb2+ 169. Ka3 Rb3+ 170. Ka4
Ra3+ 171. Kb4 Rb3+ 172. Kc5 Rc3+ 173. Kb6 Rxc6+ 174. Qxc6+ Kb8 175. Re8# 1-0
[/pgn]

Sorry, I'm simply too stupid for those non- acoustic ones still. Now I come the the same position we had here

http://talkchess.com/forum3/viewtopic.p ... 50#p890750

just 10 moves later on and with one Knight less on board. Still I don't see the progress with now 45...Rh4+ instead of ...Rf3+.
If you say, you're sure that it does work, I'll simply believe you, cause I still don't think you really thought my first one "refutation" correct neither and just wanted to be left alone.

I couldn't prove the first one version drawing, neither can I do so with this one, but still I don't see the forced winning line in such deviations like the ones doubted then and now.
Nevermind, congrats to your old and new records regards

[Hobacle]

[pgn][Event "2021.04.26"]
[Site ""]
[Date "Hobacle"]
[Round ""]
[White "#174(?)"]
[Black ""]
[Result "1-0"]
[FEN "k7/4R3/2PBQ3/1RBB2r1/7K/4NB1B/4N2B/4NB1B b - - 0 1"]
[SetUp "1"]

1... Rg4+ 2. Kh5 Rg5+ 3. Kh6 Rg6+ 4. Kh7 Rg7+ 5. Kh8 Rh7+ 6. Kg8 Rg7+ 7. Kf8
Rg8+ 8. Kf7 Rf8+ 9. Kg6 Rf6+ 10. Kh5 Rf5+ 11. Kh4 Rf4+ 12. Ng4 Rxg4+ 13. Kh5
Rg5+ 14. Kh6 Rg6+ 15. Kh7 Rg7+ 16. Kh8 Rh7+ 17. Kg8 Rg7+ 18. Kf8 Rg8+ 19. Kf7
Rf8+ 20. Kg6 Rf6+ 21. Kh5 Rf5+ 22. Kh4 Rf4+ 23. Bfg4 Rxg4+ 24. Kh5 Rg5+ 25. Kh6
Rg6+ 26. Kh7 Rg7+ 27. Kh8 Rh7+ 28. Kg8 Rg7+ 29. Kf8 Rg8+ 30. Kf7 Rf8+ 31. Kg6
Rf6+ 32. Kh5 Rf5+ 33. Kh4 Rf4+ 34. Bg4 Rxg4+ 35. Kh5 Rg5+ 36. Kh6 Rg6+ 37. Kh7
Rg7+ 38. Kh8 Rh7+ 39. Kg8 Rg7+ 40. Kf8 Rg8+ 41. Kf7 Rf8+ 42. Kg6 Rf6+ 43. Kh5
Rf5+ 44. Kh4 Rf4+ 45. Kh3 Rf3+ 46. Bdg3 Rxg3+ 47. Kh4 Rg4+ 48. Kh5 Rg5+ 49. Kh6
Rg6+ 50. Kh7 Rg7+ 51. Kh8 Rh7+ 52. Kg8 Rg7+ 53. Kf8 Rg8+ 54. Kf7 Rf8+ 55. Kg6
Rf6+ 56. Kh5 Rf5+ 57. Kh4 Rf4+ 58. Kh3 Rf3+ 59. Ng3 Rxg3+ 60. Kh4 Rg4+ 61. Kh5
Rg5+ 62. Kh6 Rg6+ 63. Kh7 Rg7+ 64. Kh8 Rh7+ 65. Kg8 Rg7+ 66. Kf8 Rg8+ 67. Kf7
Rf8+ 68. Kg6 Rf6+ 69. Kh5 Rf5+ 70. Kh4 Rf4+ 71. Kh3 Rf3+ 72. Bg3 Rxg3+ 73. Kh4
Rg4+ 74. Kh5 Rg5+ 75. Kh6 Rg6+ 76. Kh7 Rg7+ 77. Kh8 Rh7+ 78. Kg8 Rg7+ 79. Kf8
Rg8+ 80. Kf7 Rf8+ 81. Kg6 Rf6+ 82. Kh5 Rf5+ 83. Kh4 Rf4+ 84. Kh3 Rf3+ 85. Kh2
Rf2+ 86. Bdg2 Rxg2+ 87. Kh3 Rg3+ 88. Kh4 Rg4+ 89. Kh5 Rg5+ 90. Kh6 Rg6+ 91. Kh7
Rg7+ 92. Kh8 Rh7+ 93. Kg8 Rg7+ 94. Kf8 Rg8+ 95. Kf7 Rf8+ 96. Kg6 Rf6+ 97. Kh5
Rf5+ 98. Kh4 Rf4+ 99. Kh3 Rf3+ 100. Kh2 Rf2+ 101. Ng2 Rxg2+ 102. Kh3 Rg3+ 103.
Kh4 Rg4+ 104. Kh5 Rg5+ 105. Kh6 Rg6+ 106. Kh7 Rg7+ 107. Kh8 Rh7+ 108. Kg8 Rg7+
109. Kf8 Rg8+ 110. Kf7 Rf8+ 111. Kg6 Rf6+ 112. Kh5 Rf5+ 113. Kh4 Rf4+ 114. Kh3
Rf3+ 115. Kh2 Rf2+ 116. Bfg2 Rxg2+ 117. Kh3 Rg3+ 118. Kh4 Rg4+ 119. Kh5 Rg5+
120. Kh6 Rg6+ 121. Kh7 Rg7+ 122. Kh8 Rh7+ 123. Kg8 Rg7+ 124. Kf8 Rg8+ 125. Kf7
Rf8+ 126. Kg6 Rf6+ 127. Kh5 Rf5+ 128. Kh4 Rf4+ 129. Kh3 Rf3+ 130. Kh2 Rf2+ 131.
Bg2 Rxg2+ 132. Kh3 Rg3+ 133. Kh4 Rg4+ 134. Kh5 Rg5+ 135. Kh6 Rg6+ 136. Kh7 Rg7+
137. Kh8 Rh7+ 138. Kg8 Rg7+ 139. Kf8 Rg8+ 140. Kf7 Rf8+ 141. Kg6 Rf6+ 142. Kh5
Rf5+ 143. Kh4 Rf4+ 144. Kh3 Rf3+ 145. Kh2 Rf2+ 146. Kh1 Rh2+ 147. Kg1 Rg2+ 148.
Kf1 Rf2+ 149. Ke1 Re2+ 150. Kd1 Rd2+ 151. Kc1 Rc2+ 152. Kb1 Rb2+ 153. Ka1 Rb1+
154. Ka2 Rb2+ 155. Ka3 Rb3+ 156. Ka4 Ra3+ 157. Kb4 Ra4+ 158. Kc3 Rc4+ 159. Kd3
Rd4+ 160. Ke2 Re4+ 161. Kf1 Rf4+ 162. Bf2 Rxf2+ 163. Ke1 Re2+ 164. Kd1 Rd2+
165. Kc1 Rc2+ 166. Kb1 Rb2+ 167. Ka1 Rb1+ 168. Ka2 Rb2+ 169. Ka3 Rb3+ 170. Ka4
Ra3+ 171. Kb4 Rb3+ 172. Kc5 Rc3+ 173. Kb6 Rxc6+ 174. Qxc6+ Kb8 175. Re8# 1-0
[/pgn]

Sorry, I'm simply too stupid for those non- acoustic ones still. Now I come the the same position we had here

http://talkchess.com/forum3/viewtopic.p ... 50#p890750

just 10 moves later on and with one Knight less on board. Still I don't see the progress with now 45...Rh4+ instead of ...Rf3+.
If you say, you're sure that it does work, I'll simply believe you, cause I still don't think you really thought my first one "refutation" correct neither and just wanted to be left alone.

I couldn't prove the first one version drawing, neither can I do so with this one, but still I don't see the forced winning line in such deviations like the ones doubted then and now.
Nevermind, congrats to your old and new records regards

You're right and I was wrong!

[d]k7/4R3/2PBQ3/1RBB2r1/7K/4NB1B/4N2N/4NB1B b - - 0 1

If I'm not completely deaf yet, this one will work.

[peter]

You're right and I was wrong!

[d]k7/4R3/2PBQ3/1RBB2r1/7K/4NB1B/4N2N/4NB1B b - - 0 1

If I'm not completely deaf yet, this one will work.

For some reason (if not only because of my stupidness the other way round from Black's side this time) I don't find a hole at first glance this time anymore.
What I hate most, is that I yet don't understand this reason, why it should work now and maybe really didn't before.

Yet here a first line I managed to win against the engine (SF MOJO with switched off nullmove again), not sure about the DTM of course neither at all, probably made some shortcuts at points, where I wanted to break the cycle instead of repeating it. Might be some longer with best defence, I guess:

k7/4R3/2PBQ3/1RBB2r1/7K/4NB1B/4N2N/4NB1B b - - 0 1

Code: Select all

1... Rg4+ 2. Kh5 Rg5+ 3. Kh6 Rg6+ 4. Kh7 Rg7+ 5. Kh8 Rh7+ 6. Kg8 Rg7+ 7. Kf8
Rg8+ 8. Kf7 Rf8+ 9. Kg6 Rf6+ 10. Kh5 Rf5+ 11. Kh4 Rh5+ 12. Kg3 Rxh3+ 13. Kg4
Rg3+ 14. Kf5 Rg5+ 15. Ke4 Re5+ 16. Kd3 Rxe3+ 17. Kc4 Rc3+ 18. Kd4 Rd3+ 19. Ke5
Rxd5+ 20. Kf4 Rf5+ 21. Kg3 Rxf3+ 22. Kh4 Rf4+ 23. Ng4 Rxg4+ 24. Kh5 Rg5+ 25.
Kh6 Rg6+ 26. Kh7 Rg7+ 27. Kh8 Rh7+ 28. Kg8 Rg7+ 29. Kf8 Rg8+ 30. Kf7 Rf8+ 31.
Kg6 Rf6+ 32. Kh5 Rf5+ 33. Kg4 Rf4+ 34. Kh3 Rh4+ 35. Kg2 Rg4+ 36. Kf2 Rg2+ 37.
Ke3 Rxe2+ 38. Kf4 Rf2+ 39. Nf3 Rxf3+ 40. Ke5 Rf5+ 41. Kd4 Rd5+ 42. Ke4 Rd4+ 43.
Kf3 Rf4+ 44. Kg2 Rf2+ 45. Kh3 Rf3+ 46. Bg3 Rxg3+ 47. Kh4 Rg4+ 48. Kh5 Rg5+ 49.
Kh6 Rg6+ 50. Kh7 Rg7+ 51. Kh8 Rh7+ 52. Kg8 Rg7+ 53. Kf8 Rg8+ 54. Kf7 Rf8+ 55.
Kg6 Rf6+ 56. Kg5 Rf5+ 57. Kg4 Rf4+ 58. Kh3 Rf3+ 59. Kh2 Rf2+ 60. Bfg2 Rxg2+ 61.
Kh3 Rg3+ 62. Kh4 Rg4+ 63. Kh5 Rg5+ 64. Kh6 Rg6+ 65. Kh7 Rg7+ 66. Kh8 Rh7+ 67.
Kg8 Rg7+ 68. Kf8 Rg8+ 69. Kf7 Rf8+ 70. Kg6 Rf6+ 71. Kg5 Rf5+ 72. Kh4 Rf4+ 73.
Kh3 Rf3+ 74. Kh2 Rf2+ 75. Bg2 Rxg2+ 76. Kh3 Rg3+ 77. Kh4 Rg4+ 78. Kh5 Rg5+ 79.
Kh6 Rg6+ 80. Kh7 Rg7+ 81. Kh8 Rh7+ 82. Kg8 Rg7+ 83. Kf8 Rg8+ 84. Kf7 Rf8+ 85.
Kg6 Rf6+ 86. Kh5 Rf5+ 87. Kg4 Rf4+ 88. Kh3 Rf3+ 89. Kh2 Rf2+ 90. Kh1 Rh2+ 91.
Kg1 Rg2+ 92. Kf1 Rf2+ 93. Ke1 Re2+ 94. Kd1 Rd2+ 95. Kc1 Rc2+ 96. Kb1 Rb2+ 97.
Ka1 Rb1+ 98. Ka2 Rb2+ 99. Ka3 Rb3+ 100. Ka4 Ra3+ 101. Kb4 Ra4+ 102. Kc3 Rc4+
103. Kd2 Rd4+ 104. Ke1 Re4+ 105. Kf1 Rf4+ 106. Bf2 Rxf2+ 107. Ke1 Re2+ 108. Kd1
Rd2+ 109. Kc1 Rc2+ 110. Kb1 Rb2+ 111. Ka1 Rb1+ 112. Ka2 Ra1+ 113. Kb3 Rb1+ 114.
Kc4 Rc1+ 115. Kd5 Rd1+ 116. Kc5 Rc1+ 117. Kb6 Rxc6+ 118. Qxc6+ Kb8 119. Re8#

Edit: First shortcut at Backward (so rahter one of the latest ones in Forward) found at 34...Rh4?!, after ...Rf3+ instead:

k7/4R3/2PBQ3/1RB5/8/5r1K/4N3/4NB1B w - - 0 1

Analysis by Stockfish-MOJO 281120:

35.Ng3 Rxg3+ 36.Kh4 Rg4+ 37.Kh5 Rg5+ 38.Kh6 Rg6+ 39.Kh7 Rg7+ 40.Kh8 Rh7+ 41.Kg8 Rg7+ 42.Kf8 Rg8+ 43.Kf7 Rf8+ 44.Kg6 Rf6+ 45.Kg5 Rf5+ 46.Kg4 Rf4+ 47.Kh3 Rf3+ 48.Bg3 Rxg3+ 49.Kh4 Rg4+ 50.Kh5 Rg5+ 51.Kh6 Rg6+ 52.Kh7 Rg7+ 53.Kh8 Rh7+ 54.Kg8 Rg7+ 55.Kf8 Rg8+ 56.Kf7 Rf8+ 57.Kg6 Rf6+ 58.Kg5 Rf5+ 59.Kh4 Rf4+ 60.Kg3 Rf3+ 61.Kh2 Rf2+ 62.Ng2 Rxg2+ 63.Kh3 Rg3+ 64.Kh4 Rg4+ 65.Kh5 Rg5+ 66.Kh6 Rg6+ 67.Kh7 Rg7+ 68.Kh8 Rh7+ 69.Kg8 Rg7+ 70.Kf8 Rg8+ 71.Kf7 Rf8+ 72.Kg6 Rf6+ 73.Kh5 Rf5+ 74.Kh4 Rf4+ 75.Kg3 Rf3+ 76.Kh2 Rf2+ 77.Bhg2 Rxg2+ 78.Kh3 Rg3+ 79.Kh4 Rg4+ 80.Kh5 Rg5+ 81.Kh6 Rg6+ 82.Kh7 Rg7+ 83.Kh8 Rh7+ 84.Kg8 Rg7+ 85.Kf8 Rg8+ 86.Kf7 Rf8+ 87.Kg6 Rf6+ 88.Kg5 Rf5+ 89.Kh4 Rf4+ 90.Kg3 Rf3+ 91.Kh2 Rf2+ 92.Bg2 Rxg2+ 93.Kh3 Rg3+ 94.Kh4 Rg4+ 95.Kh5
+- (#102) Depth: 117/125 00:00:00 11130kN

13 moves more DTM already.

[Hobacle]

You're right and I was wrong!

[d]k7/4R3/2PBQ3/1RBB2r1/7K/4NB1B/4N2N/4NB1B b - - 0 1

If I'm not completely deaf yet, this one will work.

For some reason (if not only because of my stupidness the other way round from Black's side this time) I don't find a hole at first glance this time anymore.
What I hate most, is that I yet don't understand this reason, why it should work now and maybe really didn't before.

Yet here a first line I managed to win against the engine (SF MOJO with switched off nullmove again), not sure about the DTM of course neither at all, probably made some shortcuts at points, where I wanted to break the cycle instead of repeating it. Might be some longer with best defence, I guess:

k7/4R3/2PBQ3/1RBB2r1/7K/4NB1B/4N2N/4NB1B b - - 0 1

Code: Select all

1... Rg4+ 2. Kh5 Rg5+ 3. Kh6 Rg6+ 4. Kh7 Rg7+ 5. Kh8 Rh7+ 6. Kg8 Rg7+ 7. Kf8
Rg8+ 8. Kf7 Rf8+ 9. Kg6 Rf6+ 10. Kh5 Rf5+ 11. Kh4 Rh5+ 12. Kg3 Rxh3+ 13. Kg4
Rg3+ 14. Kf5 Rg5+ 15. Ke4 Re5+ 16. Kd3 Rxe3+ 17. Kc4 Rc3+ 18. Kd4 Rd3+ 19. Ke5
Rxd5+ 20. Kf4 Rf5+ 21. Kg3 Rxf3+ 22. Kh4 Rf4+ 23. Ng4 Rxg4+ 24. Kh5 Rg5+ 25.
Kh6 Rg6+ 26. Kh7 Rg7+ 27. Kh8 Rh7+ 28. Kg8 Rg7+ 29. Kf8 Rg8+ 30. Kf7 Rf8+ 31.
Kg6 Rf6+ 32. Kh5 Rf5+ 33. Kg4 Rf4+ 34. Kh3 Rh4+ 35. Kg2 Rg4+ 36. Kf2 Rg2+ 37.
Ke3 Rxe2+ 38. Kf4 Rf2+ 39. Nf3 Rxf3+ 40. Ke5 Rf5+ 41. Kd4 Rd5+ 42. Kc3 Rd3+ 43.
Kb4 Rb3+ 44. Kc4 Rb4+ 45. Kd5 Rd4+ 46. Ke5 Rd5+ 47. Ke4 Rd4+ 48. Kf3 Rf4+ 49.
Kg2 Rf2+ 50. Kh3 Rf3+ 51. Bg3 Rxg3+ 52. Kh4 Rg4+ 53. Kh5 Rg5+ 54. Kh6 Rg6+ 55.
Kh7 Rg7+ 56. Kh8 Rh7+ 57. Kg8 Rg7+ 58. Kf8 Rg8+ 59. Kf7 Rf8+ 60. Kg6 Rf6+ 61.
Kh5 Rf5+ 62. Kh4 Rf4+ 63. Kh3 Rf3+ 64. Kh2 Rf2+ 65. Bfg2 Rxg2+ 66. Kh3 Rg3+ 67.
Kh4 Rg4+ 68. Kh5 Rg5+ 69. Kh6 Rg6+ 70. Kh7 Rg7+ 71. Kh8 Rh7+ 72. Kg8 Rg7+ 73.
Kf8 Rg8+ 74. Kf7 Rf8+ 75. Kg6 Rf6+ 76. Kg5 Rf5+ 77. Kg4 Rf4+ 78. Kg3 Rf3+ 79.
Kh2 Rf2+ 80. Bg2 Rxg2+ 81. Kh3 Rg3+ 82. Kh4 Rg4+ 83. Kh5 Rg5+ 84. Kh6 Rg6+ 85.
Kh7 Rg7+ 86. Kh8 Rh7+ 87. Kg8 Rg7+ 88. Kf8 Rg8+ 89. Kf7 Rf8+ 90. Kg6 Rf6+ 91.
Kh5 Rf5+ 92. Kh4 Rf4+ 93. Kh3 Rf3+ 94. Kh2 Rf2+ 95. Kh1 Rh2+ 96. Kg1 Rg2+ 97.
Kf1 Rf2+ 98. Ke1 Re2+ 99. Kd1 Rd2+ 100. Kc1 Rc2+ 101. Kb1 Rb2+ 102. Ka1 Rb1+
103. Ka2 Rb2+ 104. Ka3 Rb3+ 105. Ka4 Ra3+ 106. Kb4 Ra4+ 107. Kc3 Rc4+ 108. Kd2
Rd4+ 109. Ke2 Re4+ 110. Kf1 Rf4+ 111. Bf2 Rxf2+ 112. Ke1 Re2+ 113. Kd1 Rd2+
114. Kc1 Rc2+ 115. Kb1 Rb2+ 116. Ka1 Rb1+ 117. Ka2 Ra1+ 118. Kb3 Rb1+ 119. Ka4
Ra1+ 120. Kb4 Ra4+ 121. Kc5 Rc4+ 122. Kb6 Rxc6+ 123. Qxc6+ Kb8 124. Re8# 

If this one really works, it may be #172.

The reason is a bit complex so that I even made mistakes twice(oh how humiliating, I really want to delete my wrong posts).
Now I'm sure I get it, but I'm also sure that my expression ability was too poor to be able to explain it... And my headache hasn't got better...

[peter]

[If this one really works, it may be #172.

The reason is a bit complex so that I even made two mistakes (oh so humiliating, I really want to delete my post).
Now I'm sure I get it, but I'm also sure that my expression ability was too poor to be able to explain it... And my headache hasn't got better...

Backward with engine worked so far up to position after 12.Kg3:

k7/4R3/2PBQ3/1RBB3r/8/4NBKB/4N2N/4NB1B b - - 0 1

Analysis by Stockfish-MOJO 281120:

12...Rxh3+ 13.Kg4 Rg3+ 14.Kf5 Rg5+ 15.Ke4 Re5+ 16.Kd3 Rxe3+ 17.Kd4 Rd3+ 18.Ke5 Rxd5+ 19.Kf4 Rf5+ 20.Kg3 Rxf3+ 21.Kh4 Rf4+ 22.Ng4 Rxg4+ 23.Kh5 Rg5+ 24.Kh6 Rg6+ 25.Kh7 Rg7+ 26.Kh8 Rh7+ 27.Kg8 Rg7+ 28.Kf8 Rg8+ 29.Kf7 Rf8+ 30.Kg6 Rf6+ 31.Kh5 Rf5+ 32.Kg4 Rf4+ 33.Kh3 Rf3+ 34.Bg3 Rxg3+ 35.Kh4 Rg4+ 36.Kh5 Rg5+ 37.Kh6 Rg6+ 38.Kh7 Rg7+ 39.Kh8 Rh7+ 40.Kg8 Rg7+ 41.Kf8 Rg8+ 42.Kf7 Rf8+ 43.Kg6 Rf6+ 44.Kh5 Rf5+ 45.Kh4 Rf4+ 46.Kh3 Rf3+ 47.Ng3 Rxg3+ 48.Kh4 Rg4+ 49.Kh5 Rg5+ 50.Kh6 Rg6+ 51.Kh7 Rg7+ 52.Kh8 Rh7+ 53.Kg8 Rg7+ 54.Kf8 Rg8+ 55.Kf7 Rf8+ 56.Kg6 Rf6+ 57.Kg5 Rf5+ 58.Kh4 Rf4+ 59.Kh3 Rf3+ 60.Kh2 Rf2+ 61.Ng2 Rxg2+ 62.Kh3 Rg3+ 63.Kh4 Rg4+ 64.Kh5 Rg5+ 65.Kh6 Rg6+ 66.Kh7 Rg7+ 67.Kh8 Rh7+ 68.Kg8 Rg7+ 69.Kf8 Rg8+ 70.Kf7 Rf8+ 71.Kg6 Rf6+ 72.Kh5 Rf5+ 73.Kg4 Rf4+ 74.Kh3 Rf3+ 75.Kh2 Rf2+ 76.Bhg2 Rxg2+ 77.Kh3 Rg3+ 78.Kh4
+- (#123) Depth: 130/136 00:00:00 1837kN

There's only 11.Rh5+ changed to 11.Rf4+, that should add 25 moves, but that still would make 161 only.

Seriously, if it wouldn't be for the record, nobody really cared about some single moves more or less DTM to such a fine study.
Congrats again

[Hobacle]

Seriously, if it wouldn't be for the record, nobody really cared about some single moves more or less DTM to such a fine study.

Besides me.

[d]k7/4R3/2PBQ3/1RBB2r1/7K/4N2B/4NN1N/4NB1B b - - 0 1

How about this one? If right, it will probably be the last version.

[peter]

How about this one? If right, it will probably be the last version.

Now at least I've got some practice already too.

This one seems about as long as the one before (which btw. finally seemed to be yet 148 DTM "only").

[pgn][Event "?"]
[Site "?"]
[Date "2021.04.26"]
[Round "?"]
[White "Hobacle, Nr.4"]
[Black "Last , One?"]
[Result "1-0"]
[SetUp "1"]
[FEN "k7/4R3/2PBQ3/1RBB2r1/7K/4N2B/4NN1N/4NB1B b - - 0 1"]
[PlyCount "318"]

1... Rg4+ 2. Kh5 Rg5+ 3. Kh6 Rg6+ 4. Kh7 Rg7+ 5. Kh8 Rh7+ 6. Kg8 Rg7+ 7. Kf8
Rg8+ 8. Kf7 Rf8+ 9. Kg6 Rf6+ 10. Kh5 Rf5+ 11. Kh4 Rh5+ 12. Kg3 Rg5+ 13. Kf3
Rf5+ 14. Nf4 Rxf4+ 15. Ke2 Rxf2+ 16. Kd3 Rd2+ 17. Ke4 Rd4+ 18. Kf5 Rf4+ 19. Kg5
Rf5+ 20. Kh4 Rf4+ 21. Neg4 Rxg4+ 22. Kh5 Rg5+ 23. Kh6 Rg6+ 24. Kh7 Rh6+ 25. Kg7
Rh7+ 26. Kf8 Rh8+ 27. Kf7 Rf8+ 28. Kg6 Rf6+ 29. Kg5 Rf5+ 30. Kh4 Rf4+ 31. Ng4
Rxg4+ 32. Kh5 Rg5+ 33. Kh6 Rg6+ 34. Kh7 Rg7+ 35. Kh8 Rh7+ 36. Kg8 Rg7+ 37. Kf8
Rg8+ 38. Kf7 Rf8+ 39. Kg7 Rf7+ 40. Kh6 Rf6+ 41. Kg5 Rf5+ 42. Kh4 Rf4+ 43. Bg4
Rxg4+ 44. Kh5 Rg5+ 45. Kh6 Rg6+ 46. Kh7 Rg7+ 47. Kh8 Rh7+ 48. Kg8 Rg7+ 49. Kf8
Rg8+ 50. Kf7 Rf8+ 51. Kg6 Rf6+ 52. Kg5 Rf5+ 53. Kh4 Rf4+ 54. Kh3 Rf3+ 55. Bg3
Rxg3+ 56. Kh4 Rg4+ 57. Kh5 Rg5+ 58. Kh6 Rg6+ 59. Kh7 Rg7+ 60. Kh8 Rh7+ 61. Kg8
Rg7+ 62. Kf8 Rg8+ 63. Kf7 Rf8+ 64. Kg7 Rf7+ 65. Kh6 Rf6+ 66. Kg5 Rf5+ 67. Kh4
Rf4+ 68. Kh3 Rf3+ 69. Kh2 Rf2+ 70. Ng2 Rxg2+ 71. Kh3 Rg3+ 72. Kh4 Rg4+ 73. Kh5
Rg5+ 74. Kh6 Rg6+ 75. Kh7 Rg7+ 76. Kh8 Rh7+ 77. Kg8 Rg7+ 78. Kf8 Rg8+ 79. Kf7
Rf8+ 80. Kg6 Rf6+ 81. Kg5 Rf5+ 82. Kg4 Rf4+ 83. Kg3 Rf3+ 84. Kh2 Rf2+ 85. Bfg2
Rxg2+ 86. Kh3 Rg3+ 87. Kh4 Rg4+ 88. Kh5 Rg5+ 89. Kh6 Rg6+ 90. Kh7 Rg7+ 91. Kh8
Rh7+ 92. Kg8 Rg7+ 93. Kf8 Rg8+ 94. Kf7 Rf8+ 95. Kg6 Rf6+ 96. Kh5 Rf5+ 97. Kg4
Rf4+ 98. Kg3 Rf3+ 99. Kh2 Rf2+ 100. Bhg2 Rxg2+ 101. Kh3 Rg3+ 102. Kh4 Rg4+ 103.
Kh5 Rg5+ 104. Kh6 Rg6+ 105. Kh7 Rg7+ 106. Kh8 Rh7+ 107. Kg8 Rg7+ 108. Kf8 Rg8+
109. Kf7 Rf8+ 110. Kg6 Rf6+ 111. Kg5 Rf5+ 112. Kg4 Rf4+ 113. Kh3 Rf3+ 114. Kh2
Rf2+ 115. Bg2 Rxg2+ 116. Kh3 Rg3+ 117. Kh4 Rg4+ 118. Kh5 Rg5+ 119. Kh6 Rg6+
120. Kh7 Rg7+ 121. Kh8 Rh7+ 122. Kg8 Rg7+ 123. Kf8 Rg8+ 124. Kf7 Rf8+ 125. Kg7
Rf7+ 126. Kh6 Rf6+ 127. Kh5 Rf5+ 128. Kh4 Rf4+ 129. Kh3 Rf3+ 130. Kg2 Rf2+ 131.
Kh1 Rh2+ 132. Kg1 Rg2+ 133. Kf1 Rf2+ 134. Ke1 Re2+ 135. Kd1 Rd2+ 136. Kc1 Rc2+
137. Kb1 Rb2+ 138. Ka1 Rb1+ 139. Ka2 Rb2+ 140. Ka3 Rb3+ 141. Ka4 Ra3+ 142. Kb4
Ra4+ 143. Kc3 Rc4+ 144. Kd3 Rd4+ 145. Ke2 Re4+ 146. Kf1 Rf4+ 147. Bf2 Rxf2+
148. Ke1 Re2+ 149. Kd1 Rd2+ 150. Kc1 Rc2+ 151. Kb1 Rb2+ 152. Ka1 Rb1+ 153. Ka2
Rb2+ 154. Ka3 Rb3+ 155. Ka4 Rb4+ 156. Ka5 Ra4+ 157. Kb6 Ra6+ 158. Kc5 Rb6 159.
Qc8+ Rb8 160. Rxb8# 1-0
[/pgn]

As a matter of fact, this time I just tried to go as much full cycles with the King from the very start as possible, not to risk shortcuts anymore, so there could be some detours within thus on the rebound.

Edit: At Backward already found a first one (detour), but so far for one move only, will go way back now some more slowly regards

[Hobacle]

How about this one? If right, it will probably be the last version.

Now at least I've got some practice already too.

This one seems about as long as the one before (which btw. finally seemed to be yet 148 DTM "only").

[pgn][Event "?"]
[Site "?"]
[Date "2021.04.26"]
[Round "?"]
[White "Hobacle, Nr.4"]
[Black "Last , One?"]
[Result "1-0"]
[SetUp "1"]
[FEN "k7/4R3/2PBQ3/1RBB2r1/7K/4N2B/4NN1N/4NB1B b - - 0 1"]
[PlyCount "318"]

1... Rg4+ 2. Kh5 Rg5+ 3. Kh6 Rg6+ 4. Kh7 Rg7+ 5. Kh8 Rh7+ 6. Kg8 Rg7+ 7. Kf8
Rg8+ 8. Kf7 Rf8+ 9. Kg6 Rf6+ 10. Kh5 Rf5+ 11. Kh4 Rh5+ 12. Kg3 Rg5+ 13. Kf3
Rf5+ 14. Nf4 Rxf4+ 15. Ke2 Rxf2+ 16. Kd3 Rd2+ 17. Ke4 Rd4+ 18. Kf5 Rf4+ 19. Kg5
Rf5+ 20. Kh4 Rf4+ 21. Neg4 Rxg4+ 22. Kh5 Rg5+ 23. Kh6 Rg6+ 24. Kh7 Rh6+ 25. Kg7
Rh7+ 26. Kf8 Rh8+ 27. Kf7 Rf8+ 28. Kg6 Rf6+ 29. Kg5 Rf5+ 30. Kh4 Rf4+ 31. Ng4
Rxg4+ 32. Kh5 Rg5+ 33. Kh6 Rg6+ 34. Kh7 Rg7+ 35. Kh8 Rh7+ 36. Kg8 Rg7+ 37. Kf8
Rg8+ 38. Kf7 Rf8+ 39. Kg7 Rf7+ 40. Kh6 Rf6+ 41. Kg5 Rf5+ 42. Kh4 Rf4+ 43. Bg4
Rxg4+ 44. Kh5 Rg5+ 45. Kh6 Rg6+ 46. Kh7 Rg7+ 47. Kh8 Rh7+ 48. Kg8 Rg7+ 49. Kf8
Rg8+ 50. Kf7 Rf8+ 51. Kg6 Rf6+ 52. Kg5 Rf5+ 53. Kh4 Rf4+ 54. Kh3 Rf3+ 55. Bg3
Rxg3+ 56. Kh4 Rg4+ 57. Kh5 Rg5+ 58. Kh6 Rg6+ 59. Kh7 Rg7+ 60. Kh8 Rh7+ 61. Kg8
Rg7+ 62. Kf8 Rg8+ 63. Kf7 Rf8+ 64. Kg7 Rf7+ 65. Kh6 Rf6+ 66. Kg5 Rf5+ 67. Kh4
Rf4+ 68. Kh3 Rf3+ 69. Kh2 Rf2+ 70. Ng2 Rxg2+ 71. Kh3 Rg3+ 72. Kh4 Rg4+ 73. Kh5
Rg5+ 74. Kh6 Rg6+ 75. Kh7 Rg7+ 76. Kh8 Rh7+ 77. Kg8 Rg7+ 78. Kf8 Rg8+ 79. Kf7
Rf8+ 80. Kg6 Rf6+ 81. Kg5 Rf5+ 82. Kg4 Rf4+ 83. Kg3 Rf3+ 84. Kh2 Rf2+ 85. Bfg2
Rxg2+ 86. Kh3 Rg3+ 87. Kh4 Rg4+ 88. Kh5 Rg5+ 89. Kh6 Rg6+ 90. Kh7 Rg7+ 91. Kh8
Rh7+ 92. Kg8 Rg7+ 93. Kf8 Rg8+ 94. Kf7 Rf8+ 95. Kg6 Rf6+ 96. Kh5 Rf5+ 97. Kg4
Rf4+ 98. Kg3 Rf3+ 99. Kh2 Rf2+ 100. Bhg2 Rxg2+ 101. Kh3 Rg3+ 102. Kh4 Rg4+ 103.
Kh5 Rg5+ 104. Kh6 Rg6+ 105. Kh7 Rg7+ 106. Kh8 Rh7+ 107. Kg8 Rg7+ 108. Kf8 Rg8+
109. Kf7 Rf8+ 110. Kg6 Rf6+ 111. Kg5 Rf5+ 112. Kg4 Rf4+ 113. Kh3 Rf3+ 114. Kh2
Rf2+ 115. Bg2 Rxg2+ 116. Kh3 Rg3+ 117. Kh4 Rg4+ 118. Kh5 Rg5+ 119. Kh6 Rg6+
120. Kh7 Rg7+ 121. Kh8 Rh7+ 122. Kg8 Rg7+ 123. Kf8 Rg8+ 124. Kf7 Rf8+ 125. Kg7
Rf7+ 126. Kh6 Rf6+ 127. Kh5 Rf5+ 128. Kh4 Rf4+ 129. Kh3 Rf3+ 130. Kg2 Rf2+ 131.
Kh1 Rh2+ 132. Kg1 Rg2+ 133. Kf1 Rf2+ 134. Ke1 Re2+ 135. Kd1 Rd2+ 136. Kc1 Rc2+
137. Kb1 Rb2+ 138. Ka1 Rb1+ 139. Ka2 Rb2+ 140. Ka3 Rb3+ 141. Ka4 Ra3+ 142. Kb4
Ra4+ 143. Kc3 Rc4+ 144. Kd3 Rd4+ 145. Ke2 Re4+ 146. Kf1 Rf4+ 147. Bf2 Rxf2+
148. Ke1 Re2+ 149. Kd1 Rd2+ 150. Kc1 Rc2+ 151. Kb1 Rb2+ 152. Ka1 Rb1+ 153. Ka2
Rb2+ 154. Ka3 Rb3+ 155. Ka4 Rb4+ 156. Ka5 Ra4+ 157. Kb6 Ra6+ 158. Kc5 Rb6 159.
Qc8+ Rb8 160. Rxb8# 1-0
[/pgn]

As a matter of fact, this time I just tried to go as much full cycles with the King from the very start as possible, not to risk shortcuts anymore, so there could be some detours within thus on the rebound

Try 11. ... Rf4+, that's better for Black.

[peter]

Try 11. ... Rf4+, that's better for Black.

Had a big blunder anyhow at 27.Kg7? (good example for blindness out of wrong routine)
27.Qg8 there instead would have been already #7.

24...Rh6+? had made that possible, of course ...Rg7+ would have been correct (same example for routine- blindness the other way round)

Gonna try 11...Rf4+, when I'll find more time again regards