Rook odds challenge: human vs Berserk.

[pepechuy]

Hi.

I have just began a new challenge.
I will play with rook odds against Berserk, alternating the a1 and the h1 rook; until I win at least once with each rook.

Time control: 15 minutes initial time, plus 10 seconds increment from move 1.
Berserk is playing with default settings, within BanksiaGUI.

I have just finished the first game.
A loss for me.
I quickly got into trouble, and did not find a way out.
I wanted to resign after 28. Qd6; but I still do not find a way to resign in Banksia.
Anyway, it was interesting to see how Berserk finished me off.

[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.08.03"]
[Round "*"]
[White "Berserk 9"]
[Black "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Result "1-0"]
[Time "20:15:22"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "mate"]

1. e4 {-7.16/22 18134 16336056} 1... e5 2. Nf3 {-7.08/23 23377 21104466} 2...
Nf6 3. d4 {-6.82/27 97870 77017410} 3... Nxe4 4. Bd3 {-6.60/24 12838 10237966}
4... d5 5. Nxe5 {-6.64/23 6252 9343262} 5... Be7 6. O-O {-6.74/27 79571
70322951} 6... Nd7 7. Nc3 {-6.85/25 58547 57531030} 7... Ndf6 8. Ne2 {-6.76/29
214677 189286540} 8... Bf5 9. Nf4 {-6.74/27 56386 51765454} 9... c6 10. g4
{-5.79/25 34392 26688542} 10... Bg6 11. h4 {-5.64/24 13069 11645260} 11... Nd6
12. Be2 {-5.51/24 1013 12956953} 12... h6 13. Nfxg6 {-2.74/24 28037 23977700}
13... fxg6 14. Nxg6 {-2.98/24 6373 8208520} 14... Rg8 15. c4 {-2.74/27 51285
44661811} 15... dxc4 16. g5 {-1.32/28 74999 57735894} 16... Nd5 17. Bg4
{+0.01/25 9298 8189245} 17... Qc7 18. Be6 {+2.05/25 9586 8460264} 18... Rf8 19.
Re1 {+2.52/27 4198 16110220} 19... Kd8 20. Bxd5 {+2.14/26 3260 13547406} 20...
cxd5 21. Rxe7 {+2.55/27 12355 12526784} 21... Qxe7 22. Nxe7 {+2.60/30 8395
21482188} 22... Kxe7 23. Qg4 {+2.87/33 19777 51955088} 23... Rae8 24. gxh6
{+2.98/27 10327 8652621} 24... gxh6 25. Bxh6 {+2.77/31 12252 14683992} 25... Rg8
26. Bg5+ {+4.62/23 10743 8593273} 26... Kf7 27. Qd7+ {+11.52/25 16381 14521021}
27... Kg6 28. Qxd6+ {+12.32/24 5660 23275082} 28... Kh5 29. Qxd5 {+12.46/25 9018
29434217} 29... b5 30. Qf7+ {M+4/78 26115 28303102} 30... Kg4 31. f3+ {M+3/82
46098 79416606} 31... Kg3 32. Qf4+ {M+2/127 10 8592} 32... Kh3 33. Qg4# {M+1/127
10 3002} 1-0
[/pgn]

Next game is taking the h1 rook.
When I get the chance, hopefully soon.

Greetings.

[pepechuy]

Hi.

Now, the first game taking the h1 rook.
Another loss for me.

When I played 10... O-O, I was ready to sac the exchange.
That was not bad by itself, but I simply could not follow up; I did not find any plan to make some kind of progress.
As it usually happens against engines, once I begin getting into trouble there is no chance to recover.

[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.08.04"]
[Round "*"]
[White "Berserk 9"]
[Black "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Result "1-0"]
[Time "20:30:43"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBN1 w Qkq - 0 1"]
[Termination "mate"]

1. e4 {-7.38/22 17433 15947716} 1... e5 2. Nf3 {-7.55/27 60620 51361482} 2...
Nf6 3. d4 {-7.43/24 14632 12326975} 3... Nxe4 4. dxe5 {-7.48/28 54523 51250566}
4... d5 5. Nbd2 {-7.34/24 16983 14722454} 5... Nxd2 6. Qxd2 {-7.46/27 54852
48119602} 6... Be7 7. Qf4 {-7.51/25 31780 24281607} 7... Nc6 8. Qg3 {-6.53/25
19101 17248154} 8... g6 9. Be3 {-6.93/28 91885 76428091} 9... Be6 10. Bb5
{-6.78/24 17893 16206383} 10... O-O 11. Bh6 {-6.31/26 80449 70531972} 11... a6
12. Bxc6 {-5.93/23 15145 13913690} 12... bxc6 13. Bxf8 {-6.01/24 10760 12704846}
13... Qxf8 14. Nd4 {-5.97/27 3769 29045878} 14... Qe8 15. Nxe6 {-5.13/24 17195
13251493} 15... fxe6 16. O-O-O {-5.19/30 41890 41556115} 16... Bf8 17. f4
{-4.89/23 11570 10912362} 17... Bg7 18. Qc3 {-4.60/27 20485 18884133} 18... Rb8
19. Rf1 {-4.97/28 48643 43719400} 19... Rb6 20. h4 {-4.73/27 30385 29485268}
20... Qe7 21. Qh3 {-4.52/26 8640 15055007} 21... c5 22. h5 {-4.25/25 9392
8785019} 22... gxh5 23. Qxh5 {-4.41/26 5420 14433656} 23... Qf7 24. Qe2
{-4.12/25 11370 10612044} 24... c4 25. Kb1 {-4.50/28 51285 43614484} 25... Qf8
26. c3 {-4.75/31 25211 76799682} 26... Qe8 27. g4 {-3.76/25 22593 22390697}
27... Qe7 28. Rh1 {-3.98/32 90141 89231021} 28... Qf7 29. Rf1 {-3.64/32 19714
61190850} 29... Qe8 30. Rf2 {-3.81/30 40577 39692663} 30... Qe7 31. Qe3
{-3.89/30 22172 21759501} 31... Qh4 32. Qf3 {-4.36/26 15503 15090422} 32... h6
33. Re2 {-3.66/30 58103 50035104} 33... Rb5 34. a4 {-3.34/29 63751 57445605}
34... Ra5 35. f5 {-3.30/30 31967 28567619} 35... exf5 36. gxf5 {-0.01/30 6813
6629832} 36... c6 37. f6 {+4.72/25 9600 9017293} 37... Bf8 38. e6 {+13.44/22
6483 5064251} 38... Rxa4 39. e7 {M+9/39 6337 6683008} 39... d4 40. f7+ {M+5/70
6205 8756992} 40... Kg7 41. exf8=Q+ {M+4/100 157 16780059} 41... Kxf8 42. Re8+
{M+3/96 33308 33055198} 42... Kg7 43. f8=Q+ {M+2/118 724 7097692} 43... Kg6 44.
Qg8# {M+1/127 10 5900} 1-0
[/pgn]

Results after one round (all from my perspective).
a1 rook: 0
h1 rook: 0

Next game is taking the a1 rook.
When I get the chance.

Greetings.

[pepechuy]

Hi.

Now, the second game taking the a1 rook.
A win for me.

This was a difficult and interesting game.
I got into trouble (kingside attack from Berserk), but fortunately I was able to get out losing only an exchange; so I was a bishop up in the endgame.
I decided to test my technique with 43... Bd5 (sacrificing the bishop to enter a pawn up rook endgame). Ok, this was perhaps premature, I could have tried to win in simpler ways before trying this.
After move 43, I know it should be a relatively easy win (White's king is cut off from my pawn majority, the rook alone can not stop a passed pawn supported with my king). But I was not sure if I would be able to convert against an engine.
I think I made a few inaccuracies in the ending, but also that Berserk did not offer the toughest resistance.

[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.08.06"]
[Round "*"]
[White "Berserk 9"]
[Black "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Result "0-1"]
[Time "21:22:03"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "mate"]

1. e4 {-7.16/22 20473 16336056} 1... e5 2. Nf3 {-6.95/23 27665 14257487} 2...
Nf6 3. d4 {-6.87/24 26744 26620299} 3... Nxe4 4. Bd3 {-6.56/24 16400 11220652}
4... d5 5. Nxe5 {-6.73/24 7106 13679096} 5... Be7 6. Nd2 {-6.64/27 47290
41791347} 6... Nxd2 7. Bxd2 {-6.08/21 15986 10938435} 7... Nd7 8. f4 {-6.65/26
52724 53615688} 8... c6 9. O-O {-6.69/23 43751 38889485} 9... Nf6 10. c3
{-6.74/27 101541 78534524} 10... Bd7 11. f5 {-6.56/28 181190 160580798} 11...
O-O 12. h4 {-6.61/25 8613 41512420} 12... Ne4 13. Bxe4 {-6.12/24 12818 10469702}
13... dxe4 14. h5 {-6.48/28 37362 38502775} 14... h6 15. Qg4 {-6.64/31 34469
84848006} 15... Kh7 16. Qxe4 {-6.33/25 13867 13046234} 16... Bf6 17. Qf3
{-6.40/28 12912 26341513} 17... Qe7 18. Ng4 {-6.84/30 152484 145753336} 18...
Rae8 19. Qd3 {-7.03/27 47930 58714362} 19... Qd8 20. Bf4 {-6.63/28 84470
78952260} 20... Kg8 21. Nxf6+ {-6.17/26 9565 9025789} 21... Qxf6 22. Be5
{-6.40/27 8423 10328964} 22... Qg5 23. Bd6 {-6.66/32 528 44505315} 23... Re3 24.
Qd2 {-6.32/27 33027 30107955} 24... Rfe8 25. Bf4 {-6.02/22 10144 9892566} 25...
Qe7 26. Bxe3 {-6.45/26 33194 67470235} 26... Qxe3+ 27. Qxe3 {-6.41/22 4286
5542748} 27... Rxe3 28. Rf4 {-6.47/22 10681 8747681} 28... f6 29. Kf2 {-5.61/26
42889 41513332} 29... Re7 30. b3 {-5.79/27 7410 25209685} 30... Kf7 31. g4
{-5.44/26 41439 40741432} 31... Ke8 32. Rf3 {-5.04/26 16235 15722979} 32... Kd8
33. Rd3 {-5.51/24 14192 32087787} 33... Re4 34. Kf3 {-5.16/24 17796 16639594}
34... Re1 35. c4 {-5.46/26 19212 22003424} 35... Ra1 36. a4 {-5.36/25 26373
25780903} 36... Re1 37. Kg3 {-5.79/21 14082 12585534} 37... Be8 38. Kf2
{-5.16/20 4178 3746079} 38... Re7 39. a5 {-5.36/25 15396 14596261} 39... Bf7 40.
Rd1 {-5.16/22 4732 4627446} 40... Kc7 41. Kf3 {-5.47/22 3390 7017318} 41... Kd6
42. Ra1 {-5.55/24 20263 19961016} 42... c5 43. d5 {-3.46/24 1226 1145154} 43...
Bxd5+ 44. cxd5 {-3.99/24 9023 9673408} 44... Kxd5 45. Rc1 {-4.25/23 856 3767099}
45... b5 46. axb6 {-3.85/25 16191 17149591} 46... axb6 47. Rd1+ {-4.19/21 1211
5257176} 47... Kc6 48. Rc1 {-4.51/25 18486 19598467} 48... Kb5 49. Rc4 {-4.30/22
3386 2107257} 49... Re5 50. Ra4 {-3.01/23 2573 1873616} 50... Re7 51. Kf2
{-3.87/24 4932 9105371} 51... Kc6 52. Ra8 {-4.63/24 14756 15427103} 52... b5 53.
Rb8 {-4.78/25 6512 22944267} 53... c4 54. bxc4 {-4.98/23 8285 8884019} 54...
bxc4 55. Rc8+ {-5.16/25 10918 14514443} 55... Kd5 56. Kf1 {-6.49/25 36293
38593489} 56... Kd4 57. Rd8+ {-7.75/22 14121 14699118} 57... Kc3 58. Rf8
{-7.49/22 13484 13316757} 58... Kc2 59. g5 {-7.31/19 3148 3406665} 59... fxg5
60. f6 {-8.56/21 10 17409671} 60... gxf6 61. Rxf6 {-8.76/20 578 4215387} 61...
Rh7 62. Rc6 {-9.59/23 12184 22894521} 62... c3 63. Kf2 {-10.80/23 19003
21550179} 63... Kb2 64. Rb6+ {-8.70/20 6533 6856859} 64... Kc1 65. Kf3
{-12.76/24 24780 24579719} 65... c2 66. Ke2 {-13.40/20 10 7680185} 66... Rg7 67.
Rb8 {-14.85/21 14726 15054898} 67... g4 68. Rf8 {-14.96/21 14295 14787490} 68...
Rg5 69. Kf2 {-16.95/20 213 6753564} 69... Rxh5 70. Ke2 {-258.85/21 10929
15141976} 70... Rg5 71. Rf6 {-21.80/21 21063 21134083} 71... h5 72. Kd3
{-30.79/20 12766 14064264} 72... g3 73. Rf1+ {-262.00/17 10 5811493} 73... Kb2
74. Ke4 {M-11/22 3058 6062781} 74... g2 75. Rg1 {M-7/34 3454 4686258} 75... c1=Q
76. Rxg2+ {M-6/43 680 7255021} 76... Rxg2 77. Ke5 {M-5/43 114 4191614} 77...
Qe3+ 78. Kf6 {M-4/67 17463 22302388} 78... Rg5 79. Kf7 {M-3/108 10 274041} 79...
Qe5 80. Kf8 {M-2/127 10 7939} 80... Qc7 81. Ke8 {M-1/127 10 683} 81... Rg8# 0-1
[/pgn]

Next game is taking the h1 rook.
When I get the chance.

Greetings.

[Chessqueen]

Hi.

Now, the second game taking the a1 rook.
A win for me.

This was a difficult and interesting game.
I got into trouble (kingside attack from Berserk), but fortunately I was able to get out losing only an exchange; so I was a bishop up in the endgame.
I decided to test my technique with 43... Bd5 (sacrificing the bishop to enter a pawn up rook endgame). Ok, this was perhaps premature, I could have tried to win in simpler ways before trying this.
After move 43, I know it should be a relatively easy win (White's king is cut off from my pawn majority, the rook alone can not stop a passed pawn supported with my king). But I was not sure if I would be able to convert against an engine.
I think I made a few inaccuracies in the ending, but also that Berserk did not offer the toughest resistance.

[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.08.06"]
[Round "*"]
[White "Berserk 9"]
[Black "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Result "0-1"]
[Time "21:22:03"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "mate"]

1. e4 {-7.16/22 20473 16336056} 1... e5 2. Nf3 {-6.95/23 27665 14257487} 2...
Nf6 3. d4 {-6.87/24 26744 26620299} 3... Nxe4 4. Bd3 {-6.56/24 16400 11220652}
4... d5 5. Nxe5 {-6.73/24 7106 13679096} 5... Be7 6. Nd2 {-6.64/27 47290
41791347} 6... Nxd2 7. Bxd2 {-6.08/21 15986 10938435} 7... Nd7 8. f4 {-6.65/26
52724 53615688} 8... c6 9. O-O {-6.69/23 43751 38889485} 9... Nf6 10. c3
{-6.74/27 101541 78534524} 10... Bd7 11. f5 {-6.56/28 181190 160580798} 11...
O-O 12. h4 {-6.61/25 8613 41512420} 12... Ne4 13. Bxe4 {-6.12/24 12818 10469702}
13... dxe4 14. h5 {-6.48/28 37362 38502775} 14... h6 15. Qg4 {-6.64/31 34469
84848006} 15... Kh7 16. Qxe4 {-6.33/25 13867 13046234} 16... Bf6 17. Qf3
{-6.40/28 12912 26341513} 17... Qe7 18. Ng4 {-6.84/30 152484 145753336} 18...
Rae8 19. Qd3 {-7.03/27 47930 58714362} 19... Qd8 20. Bf4 {-6.63/28 84470
78952260} 20... Kg8 21. Nxf6+ {-6.17/26 9565 9025789} 21... Qxf6 22. Be5
{-6.40/27 8423 10328964} 22... Qg5 23. Bd6 {-6.66/32 528 44505315} 23... Re3 24.
Qd2 {-6.32/27 33027 30107955} 24... Rfe8 25. Bf4 {-6.02/22 10144 9892566} 25...
Qe7 26. Bxe3 {-6.45/26 33194 67470235} 26... Qxe3+ 27. Qxe3 {-6.41/22 4286
5542748} 27... Rxe3 28. Rf4 {-6.47/22 10681 8747681} 28... f6 29. Kf2 {-5.61/26
42889 41513332} 29... Re7 30. b3 {-5.79/27 7410 25209685} 30... Kf7 31. g4
{-5.44/26 41439 40741432} 31... Ke8 32. Rf3 {-5.04/26 16235 15722979} 32... Kd8
33. Rd3 {-5.51/24 14192 32087787} 33... Re4 34. Kf3 {-5.16/24 17796 16639594}
34... Re1 35. c4 {-5.46/26 19212 22003424} 35... Ra1 36. a4 {-5.36/25 26373
25780903} 36... Re1 37. Kg3 {-5.79/21 14082 12585534} 37... Be8 38. Kf2
{-5.16/20 4178 3746079} 38... Re7 39. a5 {-5.36/25 15396 14596261} 39... Bf7 40.
Rd1 {-5.16/22 4732 4627446} 40... Kc7 41. Kf3 {-5.47/22 3390 7017318} 41... Kd6
42. Ra1 {-5.55/24 20263 19961016} 42... c5 43. d5 {-3.46/24 1226 1145154} 43...
Bxd5+ 44. cxd5 {-3.99/24 9023 9673408} 44... Kxd5 45. Rc1 {-4.25/23 856 3767099}
45... b5 46. axb6 {-3.85/25 16191 17149591} 46... axb6 47. Rd1+ {-4.19/21 1211
5257176} 47... Kc6 48. Rc1 {-4.51/25 18486 19598467} 48... Kb5 49. Rc4 {-4.30/22
3386 2107257} 49... Re5 50. Ra4 {-3.01/23 2573 1873616} 50... Re7 51. Kf2
{-3.87/24 4932 9105371} 51... Kc6 52. Ra8 {-4.63/24 14756 15427103} 52... b5 53.
Rb8 {-4.78/25 6512 22944267} 53... c4 54. bxc4 {-4.98/23 8285 8884019} 54...
bxc4 55. Rc8+ {-5.16/25 10918 14514443} 55... Kd5 56. Kf1 {-6.49/25 36293
38593489} 56... Kd4 57. Rd8+ {-7.75/22 14121 14699118} 57... Kc3 58. Rf8
{-7.49/22 13484 13316757} 58... Kc2 59. g5 {-7.31/19 3148 3406665} 59... fxg5
60. f6 {-8.56/21 10 17409671} 60... gxf6 61. Rxf6 {-8.76/20 578 4215387} 61...
Rh7 62. Rc6 {-9.59/23 12184 22894521} 62... c3 63. Kf2 {-10.80/23 19003
21550179} 63... Kb2 64. Rb6+ {-8.70/20 6533 6856859} 64... Kc1 65. Kf3
{-12.76/24 24780 24579719} 65... c2 66. Ke2 {-13.40/20 10 7680185} 66... Rg7 67.
Rb8 {-14.85/21 14726 15054898} 67... g4 68. Rf8 {-14.96/21 14295 14787490} 68...
Rg5 69. Kf2 {-16.95/20 213 6753564} 69... Rxh5 70. Ke2 {-258.85/21 10929
15141976} 70... Rg5 71. Rf6 {-21.80/21 21063 21134083} 71... h5 72. Kd3
{-30.79/20 12766 14064264} 72... g3 73. Rf1+ {-262.00/17 10 5811493} 73... Kb2
74. Ke4 {M-11/22 3058 6062781} 74... g2 75. Rg1 {M-7/34 3454 4686258} 75... c1=Q
76. Rxg2+ {M-6/43 680 7255021} 76... Rxg2 77. Ke5 {M-5/43 114 4191614} 77...
Qe3+ 78. Kf6 {M-4/67 17463 22302388} 78... Rg5 79. Kf7 {M-3/108 10 274041} 79...
Qe5 80. Kf8 {M-2/127 10 7939} 80... Qc7 81. Ke8 {M-1/127 10 683} 81... Rg8# 0-1
[/pgn]

Next game is taking the h1 rook.
When I get the chance.

Greetings.

That was a GREAT game, well played, but I believe that Berserk-9-x64-avx2-pext plays a little bit better.

[pepechuy]

That was a GREAT game, well played, but I believe that Berserk-9-x64-avx2-pext plays a little bit better.

Hi.

I downloaded:
berserk-9-x64.exe
berserk-9-x64-avx2.exe
berserk-9-x64-avx2-pext.exe
(among other files that came in the same zip file).

I just chose the first one.
¿What is the difference?

Greetings.

[Chessqueen]

That was a GREAT game, well played, but I believe that Berserk-9-x64-avx2-pext plays a little bit better.

Hi.

I downloaded:
berserk-9-x64.exe
berserk-9-x64-avx2.exe
berserk-9-x64-avx2-pext.exe
(among other files that came in the same zip file).

I just chose the first one.
¿What is the difference?

Greetings.

I was told that if your computer accept and play with berserk-9-x64-avx2-pext.exe, that it plays better.

[pepechuy]

That was a GREAT game, well played, but I believe that Berserk-9-x64-avx2-pext plays a little bit better.

Hi.

I downloaded:
berserk-9-x64.exe
berserk-9-x64-avx2.exe
berserk-9-x64-avx2-pext.exe
(among other files that came in the same zip file).

I just chose the first one.
¿What is the difference?

Greetings.

I was told that if your computer accept and play with berserk-9-x64-avx2-pext.exe, that it plays better.

Hi.

Then, I will use it for the next challenges.

Greetings.

[pepechuy]

Hi.

The second (and final) game taking the h1 rook.
A win for me.

This time, Berserk allowed an early queen exchange.
So, in contrast to the previous three games, this one was not difficult for me.
Still, I burned a lot of time in the clock, just to make sure the win.

[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.08.08"]
[Round "*"]
[White "Berserk 9"]
[Black "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Result "0-1"]
[Time "17:57:41"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBN1 w Qkq - 0 1"]
[Termination "mate"]

1. e4 {-7.38/22 16667 15947716} 1... e5 2. Nf3 {-7.55/27 51028 51361482} 2...
Nf6 3. d4 {-7.54/27 30766 28748819} 3... Nxe4 4. dxe5 {-7.60/28 51629 44328268}
4... d5 5. Nbd2 {-7.57/26 36249 32407571} 5... Nc6 6. Nxe4 {-7.71/29 44480
41935380} 6... dxe4 7. Qxd8+ {-7.81/27 7295 11667882} 7... Nxd8 8. Nd4 {-7.86/26
15445 20302531} 8... Bc5 9. c3 {-7.91/27 78002 75000370} 9... Ne6 10. Nf5
{-8.01/28 47590 46232489} 10... O-O 11. b4 {-7.77/28 58601 57703983} 11... Bb6
12. h4 {-8.06/29 103000 102910860} 12... Bd7 13. h5 {-7.98/30 83369 79921612}
13... h6 14. Ne7+ {-8.10/29 29122 69881311} 14... Kh7 15. Nd5 {-8.21/26 59954
57773101} 15... Rfe8 16. Bc4 {-8.39/27 71587 69112090} 16... Rad8 17. a4
{-7.39/25 15255 15121199} 17... c6 18. Nxb6 {-7.29/23 10459 10377755} 18... axb6
19. Be3 {-7.46/26 14452 16037726} 19... b5 20. axb5 {-7.76/29 22656 57846031}
20... cxb5 21. Be2 {-7.76/28 69882 71709689} 21... Ra8 22. Rd1 {-8.05/29 144385
76730016} 22... Bc6 23. c4 {-8.22/29 10 34565490} 23... bxc4 24. Bxc4 {-8.24/26
987 7996735} 24... Red8 25. Rd6 {-7.09/23 10249 10166079} 25... Rxd6 26. exd6
{-7.53/25 155 14380181} 26... Rd8 27. b5 {-7.19/27 14685 14797386} 27... Be8 28.
Bd5 {-7.13/30 61531 35135909} 28... Bxb5 29. Bxe4+ {-6.84/25 8289 2505980} 29...
Kg8 30. Bxb7 {-6.76/23 4376 2571174} 30... Rxd6 31. f3 {-6.86/21 104 1134326}
31... Nd4 32. Kf2 {-6.18/24 5941 3885048} 32... Nf5 33. Bf4 {-6.51/24 6354
6225444} 33... Rd7 34. Be4 {-7.05/24 7190 6982677} 34... Nd6 35. Bc2 {-6.18/27
11037 10929811} 35... Ne8 36. g4 {-6.62/27 5271 24845029} 36... Bc6 37. Kg3
{-7.00/29 35582 34804091} 37... Ra7 38. Bd3 {-7.52/28 10 34440601} 38... Ra3 39.
Be2 {-7.91/24 2534 8531875} 39... Nf6 40. Kf2 {-7.83/26 42817 28368092} 40...
Nh7 41. Be5 {-8.21/23 18245 12092767} 41... Ng5 42. f4 {-8.46/20 10 2183185}
42... Ne4+ 43. Kg1 {-9.03/24 10 21445365} 43... Bd5 44. Bb5 {-9.52/25 27012
17673968} 44... Ra2 45. Bd3 {-9.30/19 8819 8334914} 45... Nd2 46. Bb8 {-9.17/22
15139 11925874} 46... Nf3+ 47. Kf1 {-9.24/22 10 3595719} 47... Nh2+ 48. Ke1
{-9.76/23 10 12768205} 48... Nxg4 49. Be2 {-9.82/23 748 4438661} 49... Nf6 50.
Bc7 {-10.26/25 23615 22587027} 50... Be6 51. Bd3 {-11.07/23 22986 18200756}
51... Nxh5 52. f5 {-10.39/20 3529 3252788} 52... Bd5 53. Be2 {-10.97/21 6019
10442156} 53... Nf6 54. Be5 {-12.11/22 21111 20273165} 54... Be4 55. Bc4
{-13.65/23 12768 13144331} 55... Ra5 56. Bd6 {-13.70/21 4144 4397494} 56... Rxf5
57. Be2 {-13.87/25 15068 14763991} 57... h5 58. Bc4 {-13.90/21 7284 7424359}
58... h4 59. Bh2 {-15.15/21 13308 13431037} 59... g5 60. Bc7 {-17.63/20 10843
11174513} 60... g4 61. Bb3 {-15.06/19 7626 8271919} 61... g3 62. Bc4 {-17.22/18
6151 6545561} 62... g2 63. Bb6 {-10.81/22 13846 14645974} 63... h3 64. Bg1
{-56.24/19 10801 9967166} 64... Ng4 65. Ke2 {-281.06/16 10 3105773} 65... h2 66.
Bxh2 {M-7/33 124 3242033} 66... Nxh2 67. Ke3 {M-6/36 135 2982877} 67... g1=Q+
68. Kxe4 {M-5/62 6443 24039726} 68... Qg4+ 69. Kd3 {M-4/62 3363 7082133} 69...
Rf3+ 70. Kd2 {M-3/65 31947 3213305} 70... Qxc4 71. Ke1 {M-2/116 7453 493060}
71... Qa2 72. Kd1 {M-1/127 10 1726} 72... Rf1# 0-1
[/pgn]

Final results, all from my perspective (two rounds were needed).
a1 rook: 0, 1.
h1 rook: 0, 1.

I am considering two possible challenges next.
Option A: chess960 against weakened engines. Expected: 50 games.
Option B: pawn endings, a pawn up against strong engines (Berserk, Crafty, Komodo, Lc0, Stockfish). At least 40 games.

Greetings.

[Chessqueen]

Hi.

The second (and final) game taking the h1 rook.
A win for me.

This time, Berserk allowed an early queen exchange.
So, in contrast to the previous three games, this one was not difficult for me.
Still, I burned a lot of time in the clock, just to make sure the win.

[pgn]
[Event "banksia game"]
[Site "*"]
[Date "2022.08.08"]
[Round "*"]
[White "Berserk 9"]
[Black "hm::Garcia Ruvalcaba, Jose de Jesus"]
[Result "0-1"]
[Time "17:57:41"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBN1 w Qkq - 0 1"]
[Termination "mate"]

1. e4 {-7.38/22 16667 15947716} 1... e5 2. Nf3 {-7.55/27 51028 51361482} 2...
Nf6 3. d4 {-7.54/27 30766 28748819} 3... Nxe4 4. dxe5 {-7.60/28 51629 44328268}
4... d5 5. Nbd2 {-7.57/26 36249 32407571} 5... Nc6 6. Nxe4 {-7.71/29 44480
41935380} 6... dxe4 7. Qxd8+ {-7.81/27 7295 11667882} 7... Nxd8 8. Nd4 {-7.86/26
15445 20302531} 8... Bc5 9. c3 {-7.91/27 78002 75000370} 9... Ne6 10. Nf5
{-8.01/28 47590 46232489} 10... O-O 11. b4 {-7.77/28 58601 57703983} 11... Bb6
12. h4 {-8.06/29 103000 102910860} 12... Bd7 13. h5 {-7.98/30 83369 79921612}
13... h6 14. Ne7+ {-8.10/29 29122 69881311} 14... Kh7 15. Nd5 {-8.21/26 59954
57773101} 15... Rfe8 16. Bc4 {-8.39/27 71587 69112090} 16... Rad8 17. a4
{-7.39/25 15255 15121199} 17... c6 18. Nxb6 {-7.29/23 10459 10377755} 18... axb6
19. Be3 {-7.46/26 14452 16037726} 19... b5 20. axb5 {-7.76/29 22656 57846031}
20... cxb5 21. Be2 {-7.76/28 69882 71709689} 21... Ra8 22. Rd1 {-8.05/29 144385
76730016} 22... Bc6 23. c4 {-8.22/29 10 34565490} 23... bxc4 24. Bxc4 {-8.24/26
987 7996735} 24... Red8 25. Rd6 {-7.09/23 10249 10166079} 25... Rxd6 26. exd6
{-7.53/25 155 14380181} 26... Rd8 27. b5 {-7.19/27 14685 14797386} 27... Be8 28.
Bd5 {-7.13/30 61531 35135909} 28... Bxb5 29. Bxe4+ {-6.84/25 8289 2505980} 29...
Kg8 30. Bxb7 {-6.76/23 4376 2571174} 30... Rxd6 31. f3 {-6.86/21 104 1134326}
31... Nd4 32. Kf2 {-6.18/24 5941 3885048} 32... Nf5 33. Bf4 {-6.51/24 6354
6225444} 33... Rd7 34. Be4 {-7.05/24 7190 6982677} 34... Nd6 35. Bc2 {-6.18/27
11037 10929811} 35... Ne8 36. g4 {-6.62/27 5271 24845029} 36... Bc6 37. Kg3
{-7.00/29 35582 34804091} 37... Ra7 38. Bd3 {-7.52/28 10 34440601} 38... Ra3 39.
Be2 {-7.91/24 2534 8531875} 39... Nf6 40. Kf2 {-7.83/26 42817 28368092} 40...
Nh7 41. Be5 {-8.21/23 18245 12092767} 41... Ng5 42. f4 {-8.46/20 10 2183185}
42... Ne4+ 43. Kg1 {-9.03/24 10 21445365} 43... Bd5 44. Bb5 {-9.52/25 27012
17673968} 44... Ra2 45. Bd3 {-9.30/19 8819 8334914} 45... Nd2 46. Bb8 {-9.17/22
15139 11925874} 46... Nf3+ 47. Kf1 {-9.24/22 10 3595719} 47... Nh2+ 48. Ke1
{-9.76/23 10 12768205} 48... Nxg4 49. Be2 {-9.82/23 748 4438661} 49... Nf6 50.
Bc7 {-10.26/25 23615 22587027} 50... Be6 51. Bd3 {-11.07/23 22986 18200756}
51... Nxh5 52. f5 {-10.39/20 3529 3252788} 52... Bd5 53. Be2 {-10.97/21 6019
10442156} 53... Nf6 54. Be5 {-12.11/22 21111 20273165} 54... Be4 55. Bc4
{-13.65/23 12768 13144331} 55... Ra5 56. Bd6 {-13.70/21 4144 4397494} 56... Rxf5
57. Be2 {-13.87/25 15068 14763991} 57... h5 58. Bc4 {-13.90/21 7284 7424359}
58... h4 59. Bh2 {-15.15/21 13308 13431037} 59... g5 60. Bc7 {-17.63/20 10843
11174513} 60... g4 61. Bb3 {-15.06/19 7626 8271919} 61... g3 62. Bc4 {-17.22/18
6151 6545561} 62... g2 63. Bb6 {-10.81/22 13846 14645974} 63... h3 64. Bg1
{-56.24/19 10801 9967166} 64... Ng4 65. Ke2 {-281.06/16 10 3105773} 65... h2 66.
Bxh2 {M-7/33 124 3242033} 66... Nxh2 67. Ke3 {M-6/36 135 2982877} 67... g1=Q+
68. Kxe4 {M-5/62 6443 24039726} 68... Qg4+ 69. Kd3 {M-4/62 3363 7082133} 69...
Rf3+ 70. Kd2 {M-3/65 31947 3213305} 70... Qxc4 71. Ke1 {M-2/116 7453 493060}
71... Qa2 72. Kd1 {M-1/127 10 1726} 72... Rf1# 0-1
[/pgn]

Final results, all from my perspective (two rounds were needed).
a1 rook: 0, 1.
h1 rook: 0, 1.

I am considering two possible challenges next.
Option A: chess960 against weakened engines. Expected: 50 games.
Option B: pawn endings, a pawn up against strong engines (Berserk, Crafty, Komodo, Lc0, Stockfish). At least 40 games.

Greetings.

I found a new challenge for you, a Queen for a Rook
[fen]1nbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNB1KBNR w KQk - 0 1 ]/fen]

[pepechuy]

I found a new challenge for you, a Queen for a Rook
[fen]1nbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNB1KBNR w KQk - 0 1 ]/fen]

Hi.

¡Thanks for the suggestion! This is a great challenge.
I think I will play it after the pawn ending challenge.

I know nobody asked, but last weeks I was playing in the first stage of the Chess960 world chess championship in Lichess.
I actually qualified for the second stage, but realized it after it was over! (I wanted to kick myself).
I am aware that this is unrelated to computer chess; I am just blowing some steam off.

Or perhaps it is not completely unrelated. My chess960 rating increased more than 600 points in those first stage tournaments.
Before them, I played only against bots.
In them, I faced other humans.
While formally there is only one rating pool, in practice they are two separated rating pools: there are extremely few human vs bot chess960 games.
And I think I did get better at chess960 by facing computers.

Greetings.