EGTB Testsuite

[tano-urayoan]

[d] 8/8/7p/5p1k/5Q2/3q2K1/7P/8 w - - 0 59

This game was played between Vaganian - Sunye Rio de Janeiro Interzonal 1979. Here Qf3+ was played after the queens were exchange black played Kg5 and we arrived at this position.

[d] 8/8/7p/5pk1/8/5K2/7P/8 w - - 0 0

Here Ke2 draws.

If the first position does not help maybe the second one for a basic test.

P.s. Here is the complete game: [Event "Rio de Janeiro Interzonal"]
[Site "Rio de Janeiro"]
[Date "1979"]
[White "Vaganian, Rafael A"]
[Black "Sunye Neto, Jaime"]
[Result "0-1"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 d5 5. cxd5 exd5 6. Nc3 Be7 7. g3 O-O 8. Bg2 Bb7 9. O-O c5 10. Ne5 Nc6 11. Nxc6 Bxc6 12. dxc5 bxc5 13. Bg5 Rb8 14. Rb1 h6 15. Bxf6 Bxf6 16. Qc2 Qd6 17. Rfd1 Bxc3 18. bxc3 Rxb1 19. Qxb1 Rb8 20. Qd3 Qe5 21. Qa6 Bb5 22. Qxa7 Bxe2 23. Re1 d4 24. cxd4 cxd4 25. Bf1 d3 26. f4 Qe8 27. Bxe2 Rb2 28. Qf2 Rxe2 29. Rxe2 dxe2 30. Qe1 Qe3+ 31. Kg2 g5 32. a4 gxf4 33. gxf4 Qxf4 34. Qxe2 Qxa4 35. Qe5 Qg4+ 36. Kf2 Kh7 37. Qb8 Qf5+ 38. Kg3 Kg7 39. Kg2 Kg6 40. Qd6+ Kh5 41. Qc7 Qd5+ 42. Kf2 f6 43. Qc3 Qf5+ 44. Kg2 Qg5+ 45. Kf2
Kh4 46. Qf3 Qe5 47. Kg2 Kg5 48. Qb3 Qe2+ 49. Kg3 Qg4+ 50. Kf2 Kh4 51. Qc3 Qf4+ 52. Kg2 Qg5+ 53. Kf2 Qe5 54. Qc4+ Kh5 55. Kf3 f5 56. Qf4 Qc3+ 57. Kg2 Qc2+ 58. Kg3 Qd3+ 59. Qf3+ Qxf3+ 60. Kxf3 Kg5 61. Kg3 h5 62. Kf3 h4 63. Kg2 Kg4 64. Kf2 Kf4 65. Ke2 Ke4 66. Kf2 Kd3 67. Kf3 h3 0-1

[Kirill Kryukov]

[d] 8/8/7p/5p1k/5Q2/3q2K1/7P/8 w - - 0 59

Nice! Do you know if 1.Kf2 loses or draws too? A good EGTB test should have only one solution.

This game was played between Vaganian - Sunye Rio de Janeiro Interzonal 1979. Here Qf3+ was played after the queens were exchange black played Kg5 and we arrived at this position.

[d] 8/8/7p/5pk1/8/5K2/7P/8 w - - 0 0

Here Ke2 draws.

If the first position does not help maybe the second one for a basic test.

P.s. Here is the complete game: [Event "Rio de Janeiro Interzonal"]
[Site "Rio de Janeiro"]
[Date "1979"]
[White "Vaganian, Rafael A"]
[Black "Sunye Neto, Jaime"]
[Result "0-1"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 d5 5. cxd5 exd5 6. Nc3 Be7 7. g3 O-O 8. Bg2 Bb7 9. O-O c5 10. Ne5 Nc6 11. Nxc6 Bxc6 12. dxc5 bxc5 13. Bg5 Rb8 14. Rb1 h6 15. Bxf6 Bxf6 16. Qc2 Qd6 17. Rfd1 Bxc3 18. bxc3 Rxb1 19. Qxb1 Rb8 20. Qd3 Qe5 21. Qa6 Bb5 22. Qxa7 Bxe2 23. Re1 d4 24. cxd4 cxd4 25. Bf1 d3 26. f4 Qe8 27. Bxe2 Rb2 28. Qf2 Rxe2 29. Rxe2 dxe2 30. Qe1 Qe3+ 31. Kg2 g5 32. a4 gxf4 33. gxf4 Qxf4 34. Qxe2 Qxa4 35. Qe5 Qg4+ 36. Kf2 Kh7 37. Qb8 Qf5+ 38. Kg3 Kg7 39. Kg2 Kg6 40. Qd6+ Kh5 41. Qc7 Qd5+ 42. Kf2 f6 43. Qc3 Qf5+ 44. Kg2 Qg5+ 45. Kf2
Kh4 46. Qf3 Qe5 47. Kg2 Kg5 48. Qb3 Qe2+ 49. Kg3 Qg4+ 50. Kf2 Kh4 51. Qc3 Qf4+ 52. Kg2 Qg5+ 53. Kf2 Qe5 54. Qc4+ Kh5 55. Kf3 f5 56. Qf4 Qc3+ 57. Kg2 Qc2+ 58. Kg3 Qd3+ 59. Qf3+ Qxf3+ 60. Kxf3 Kg5 61. Kg3 h5 62. Kf3 h4 63. Kg2 Kg4 64. Kf2 Kf4 65. Ke2 Ke4 66. Kf2 Kd3 67. Kf3 h3 0-1

Thanks, I added the second one as a basic test. Some programs find 1.Ke2 very soon, but on the other hand some programs are troubled to find it.

[tano-urayoan]

[d] 8/1k6/1p1r4/5K2/8/8/8/2R5 w - - 0 1

This is another position that is difficult. Here just Ke4 draws. Maybe another basic test.

[tano-urayoan]

The above position was from a game between Peter Laveryd - Ulf Andersson Katrineholm 1999.
The sequence started with this position
[d] 8/8/1pk5/8/1RP3pK/6r1/8/8 b - - 0 60

After Rd3 Kxg4 Rd6 Kf5 Kc5 we arrived at this position
[d] 8/8/1p1r4/2k2K2/1RP5/8/8/8 w - - 0 63

Here Rb1 is the only move that draws also with Ke4 as the above post.