Simple mate in 6 that gives some engines trouble

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USGroup1
Posts: 29
Joined: Sun Oct 14, 2018 5:01 pm
Full name: Sina Vaziri

Re: Simple mate in 6 that gives some engines trouble

Post by USGroup1 » Thu May 30, 2019 5:00 pm

SF dev 3 threads found it after 3:24 on my laptop:

Code: Select all

FEN: b4bN1/4p1p1/1Q1p2K1/q1np4/3p1Rnk/6pr/4Rppr/3N4 w - - 0 1
Engine: stockfish_19052509_x64_bmi2.exe
Threads: 3
Hash: 512
Start Time: 5/30/2019 9:21:05 PM


 Depth  Time   Eval     Line
-----------------------------
 1      00:00  -16.07   1. Qxa5 g1=Q 2. Rxf8 f1=Q 3. Rxf1 Rxe2
 3      00:00  -17.31   1. ,,,, f1=Q 2. Qxa8 Qxe2
 5      00:00  -18.55   1. Nxe7 Bxe7 2. Qxa5 f1=Q 3. Rxf1 gxf1=Q
 6      00:00  -18.29   1. Qxa5 f1=Q 2. Re1 Qxf4 3. Qxa8 Ne5+ 4. Kh7
 7      00:00  -18.60   1. ,,,, ,,,, 2. ,,, ,,,, 3. ,,,, ,,,, 4. ,,, e6
 8      00:00  -20.00   1. Nf6 gxf6 2. Nxf2 gxf2 3. Qxa5 f1=Q 4. Qxa8 Qxf4
 9      00:00  -18.44   1. Nxf2 gxf2 2. Qxa5 f1=Q
 10     00:00  -16.43   1. Qxa5 f1=Q 2. Qd2 Nb3 3. Rxf1 Nxd2 4. Rg1 Ne5+ 5. Kf5
 12     00:00  -17.57   1. ,,,, ,,,, 2. ,,, ,,, 3. ,,,, ,,,, 4. ,,, ,,,, 5. ,,, Ndf3 6. Rgxg2 Rh1 7. Nb2 d3 8. Rxe5 Nxe5 9. Kf4 Rf1+ 10. Ke3
 13     00:00  -12.84   1. ,,,, g1=Q 2. Nxe7 f1=Q 3. Rxf1 Qxf1
 14     00:00  -10.80   1. ,,,, f1=Q 2. Qd2 Ne6 3. Rxe6 g1=Q 4. Rxf1 Rxd2
 15     00:00  -17.62   1. ,,,, ,,,, 2. ,,, g1=Q 3. Rxf1 Qe3 4. Rxe3 Rxd2 5. Nxe7 Bxe7 6. Rxe7 g2 7. Rg1 Rh1 8. Ree1 Ne5+ 9. Kxg7 Rxg1 10. Rxg1 Nf3 11. Kg6 Nxg1
 16     00:00  -18.84   1. ,,,, ,,,, 2. ,,, ,,,, 3. ,,,, ,,, 4. ,,,, ,,,, 5. Rf5 Nxe3 6. Nxe3 g2 7. Rf4+ Kg3 8. Nxg2 Nd7 9. Rxf8 Nxf8+ 10. Kxg7 Ne6+ 11. Kf7 Ng5+ 12. Kg6 Rxg2 13. Nxe7 Kf3 14. Kf6
 17     00:00  -17.78   1. ,,,, ,,,, 2. ,,, ,,,, 3. ,,,, ,,, 4. ,,,, ,,,, 5. ,,, ,,,, 6. ,,,, ,, 7. Nxg2+ Rxg2+ 8. Kf7 Kg4
 18     00:00  -17.12   1. ,,,, ,,,, 2. ,,, ,,,, 3. ,,,, ,,, 4. ,,,, ,,,, 5. ,,, ,,,, 6. ,,,, ,, 7. ,,,,, ,,,,, 8. ,,, g6 9. Rf1 Nd7 10. Nxe7 Bxe7
 19     00:00  -17.59   1. ,,,, ,,,, 2. ,,, ,,,, 3. ,,,, ,,, 4. ,,,, ,,,, 5. ,,, ,,,, 6. ,,,, ,, 7. ,,,,, ,,,,, 8. ,,, Nd7 9. Ke8 Kg4 10. Rf1 Rh8 11. Nxe7 Re2 12. Rg1+ Kf4 13. Kxd7 Rxe7+ 14. Kxd6 Re3+ 15. Kd7
 20     00:01  -19.56   1. Qb8 Ne6 2. Rxe6 f1=Q 3. Qxf8 Qd3+ 4. Rf5 g1=Q 5. Qxe7+ Nf6 6. Nxf6 Qxf5+ 7. Kxf5 Rf2+ 8. Kg6 Qxd1 9. Kxg7 Rf5 10. Ne4+ Kg4 11. Rg6+ Kf3 12. Ng5+ Rxg5 13. Rxg5 Kg2 14. Kf8 Rh8+ 15. Kg7 Qd8 16. Qxd8 Rxd8 17. Rg6 Qd3
 21     00:01  -21.53   1. Qxa5 f1=Q 2. Qd2 g1=Q 3. Rxf1 Qe3 4. Rxe3 Rxd2 5. Nxe7 Bxe7 6. Rxe7 g2 7. Ree1 gxf1=Q 8. Rxf1 Rhd3 9. Rh1+ Kg3 10. Rh8 Bc6 11. Rh7 Rxd1 12. Rxg7 Be8+ 13. Kh7
 22     00:02  -21.94   1. ,,,, ,,,, 2. ,,, ,,,, 3. ,,,, ,,, 4. ,,,, ,,,, 5. Rf5 Ne5+ 6. Rexe5 dxe5 7. Rh5+ Kg4 8. Rg5+ Kf3 9. Rf5+ Ke2 10. Nf2 gxf2 11. Rxf8 Rg3+ 12. Kh7 e6 13. Ne7 f1=Q 14. Rxf1 Kxf1
 23     00:03  -22.84   1. ,,,, ,,,, 2. ,,, ,,,, 3. ,,,, ,,, 4. ,,,, ,,,, 5. Nxe7 Bxe7 6. Rxe7 g2 7. Ree1 gxf1=Q 8. Rxf1 Rhd3 9. Rh1+ Kg3 10. Rg1+ Kf3 11. Rf1+ Ke2 12. Rf8 Bb7 13. Nf2 Nxf2 14. Rd8 Rg3+ 15. Kf7 Nfe4 16. Ke7 Kf3 17. Rb8 Rg5 18. Kf8 d3 19. Kf7 Kg3
 24     00:07  -24.57   1. ,,,, ,,,, 2. ,,, ,,,, 3. ,,,, ,,, 4. Qxe3 dxe3 5. Nh6 gxh6 6. Nxe3 Ne5+ 7. Kh7 Rxe2 8. Rf4+ Ng4 9. Rxg4+ Kh5 10. Rf4 Ne6 11. Ng2 Rxg2 12. Ra4 Bc6 13. Ra6 Nd4 14. Kg8 Rf2 15. Kh7
 25     00:07  -18.69   1. ,,,, ,,,, 2. ,,, ,,,, 3. ,,,, ,,, 4. Rxe3 Rxd2 5. Nxe7 Bxe7 6. Rxe7 g2 7. Ree1 Ne5+ 8. Kh7 Kg5+ 9. Kg8 gxf1=Q 10. Rxf1
 26     00:16  -27.37   1. Qb8 Ne6 2. Rxe6 f1=Q 3. Qxf8 Qd3+ 4. Rf5 g1=Q 5. Qxe7+ Nf6 6. Nxf6 Qxf5+ 7. Kxf5 Rf2+ 8. Kg6 Qxd1 9. Ng8+ Kg4 10. Kxg7 Rh4 11. Qd7 Kh3 12. Nf6 g2 13. Re2+ Kg3 14. Rxf2 g1=Q 15. Rf5 Qc1 16. Kf7 Qac7 17. Kg6 Rh6+ 18. Kf7 Qge3 19. Qxc7
 27     00:27  -28.89   1. Qxa5 f1=Q 2. Qd2 g1=Q 3. Rxf1 Qe3 4. Rxe3 Rxd2 5. Ree1 Ne5+ 6. Kh7 Kg5+ 7. Nh6 Rxh6+ 8. Kg8 Ng6 9. Kf7 Rh8 10. Ke8 Bc6+ 11. Kd8 Nd3 12. Kc7 Nxe1 13. Rg1 g2 14. Ne3 Ne5 15. Nxg2 Nxg2 16. Kb6 e6 17. Rb1 Be7 18. Rb4 Nf4 19. Ka6
 28     00:49  -30.03   1. Qb8 Ne6 2. Rxe6 f1=Q 3. Qxf8 Qd3+ 4. Rf5 g1=Q 5. Qxe7+ Nf6 6. Nxf6 Qxf5+ 7. Kxf5 Rf2+ 8. Kg6 Qxd1 9. Kxg7 Rf5 10. Nh7+ Kg4 11. Kh8 g2 12. Qd7 Kf4 13. Qxd6+ Kf3 14. Rf6 g1=Q 15. Rxf5+ Ke2 16. Qd7 Qg4 17. Qe7+ Kd3 18. Rg5 Qc8+ 19. Kg7 Qac7 20. Qxc7 Qxc7+ 21. Kg6 Qxh7+ 22. Kf6 Qf3+ 23. Ke5
 29     02:14  -31.96   1. ,,, ,,, 2. ,,,, ,,,, 3. ,,,, ,,,, 4. ,,, ,,,, 5. ,,,,, ,,, 6. ,,,, ,,,,, 7. ,,,, ,,,, 8. ,,, ,,,, 9. ,,,, ,,, 10. Nd7+ Rg5+ 11. Kf8 Qf3+ 12. Rf6 g2 13. Qh7+ Kg4 14. Ne5+ dxe5 15. Qd7+ Kh4 16. Qh7+ Rh5 17. Qe7 Rh8+ 18. Kg7 Rg8+ 19. Kxg8 g1=Q+ 20. Kh8 Qe2 21. Rh6+ Kg3 22. Rxh3+ Kxh3 23. Qh7+ Kg2 24. Qg6+ Kf2
 30     03:07  -34.80   1. ,,, ,,, 2. ,,,, ,,,, 3. Rxf8 Qd3+ 4. Rf5 g1=Q 5. Nxe7 Ne5+ 6. Rxe5 dxe5 7. Qxe5 Qad2 8. Kf7 g5 9. Nb2 Qe4 10. Nd3 Qexd3 11. Qe6 Kh5 12. Kg7 Qge3 13. Re5 Qf4 14. Rxd5 Bxd5 15. Nxd5 Qff3 16. Qe5 Kg4 17. Nf6+ Kh4
 31     03:17  -25.36   1. Qxa5 f1=Q 2. Qd2 g1=Q 3. Rxf1 Qe3 4. Rxe3 Rxd2 5. Ree1 Ne5+ 6. Kh7 Kg5+ 7. Nh6 Rxh6+ 8. Kg8 Ng6 9. Kf7 Rh8 10. Rg1 g2 11. Ke8 Ne5 12. Kd8 Nf3 13. Rxg2+ Rxg2 14. Rf1
 32     03:24  +M6      1. Nh6 gxh6 2. Re5 dxe5 3. Qf6+ exf6 4. Ne3 dxe3 5. Rf5 Qc7 6. Rh5#

1. Nh6 gxh6 2. Re5 dxe5 3. Qf6+ exf6 4. Ne3 dxe3 5. Rf5 Qc7 6. Rh5#

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