Complex Endgames

[Nordlandia]

Difficult endgames for engines ->

[d]rn2r2k/4q1pp/p1p5/1p6/4P3/1Q2B1P1/PP2B2P/3R2K1 w - - 0 22

[d]5k2/pb3p2/1bq5/4pp1p/7P/6P1/PPPRN2K/5Q2 w - - 0 31

[d]8/pppb1kpp/8/8/8/5P2/PPP1NKPP/8 b - - 0 1

[d]3B2k1/5pp1/p1R5/8/r1n5/7P/6P1/6K1 w - - 0 0

[d]8/6kp/2rn2p1/8/1p4P1/1B5P/3R4/6K1 b - - 0 41

[Nordlandia]

More imbalanced positions eligible for engine matches.

[d]6k1/ppp1q1pp/4pp2/8/8/2N5/PP4PP/1R3RK1 w - - 0 0 | RRN vs QPPP

[d]2bqkbn1/pppppppp/8/8/8/8/P3PPPP/RNB1KBNR w KQ - 0 1 | RRN vs QPPP

[d]1r2rbk1/1p3qp1/p4p1p/8/5N2/P1B4P/1P2NPP1/1Q3BK1 b - - 0 1 |NNB vs RR

[d]6k1/pp2q1pp/8/8/8/2R2N2/PP4PP/6K1 w - - 0 0 | RN vs Q

[d]6k1/pp1q2pp/8/8/8/2R2B2/PP4PP/6K1 w - - 0 1 | RB vs Q

[d]r4r1k/pp4pp/3q1p2/8/2B1P3/2BP1P2/PP4PP/R4R1K w - - 0 1 | RRBBPP vs QRR

[d]2r2bk1/1ppq1pp1/p1bp1n1p/8/2P5/2Q2P2/PP1Q1BPP/5BK1 w - - 0 0 | QQBB vs QRBBNP

[d]6k1/1p4p1/p3np1p/8/8/2N1B2P/P7/6K1 w - - 0 0 | BN vs NPPP

[d]r1bqkbnr/pppppppp/8/8/8/8/3PPP1P/RNBQKBNR w KQkq - 0 1 | N vs PPPP

[d]r3k3/ppp2ppp/3p4/8/8/8/8/1NB1KBN1 w q - 0 0 | BBNN vs RPPPPPP

[d]3r2k1/pp3p1p/2p3p1/8/8/2B3P1/PP2NP1P/6K1 w - - 0 1 | BN vs RP

[d]3rq1k1/pp3p1p/2p3p1/8/8/2B3P1/PPQ1NP1P/6K1 w - - 0 1 | QBN vs QRP

[d]1r4k1/4qbp1/1p3p1p/8/8/P1QNN2P/1PP2PP1/6K1 w - - 0 1 | NNPP vs RB

[d]3bb1k1/pp4pp/8/8/8/2N5/PP2N1PP/6K1 b - - 0 1 | NN vs BB

[d]r4rk1/pp4pp/2p5/8/8/2N2B2/P5PP/3R2K1 b - - 0 1 | RBN vs RRPP

[d]5rk1/1p3p1p/p1pq2p1/8/8/P2B4/1P3NPP/1R3RK1 w - - 0 1 | RRBN vs QRPP

[Lyudmil Tsvetkov]

not all of those are endgames?

where did you get those?

are not those some of the positions from the Imbalances section of my latest book?

[Nordlandia]

not all of those are endgames?

where did you get those?

are not those some of the positions from the Imbalances section of my latest book?

That is correct. I hope you don't mind i use them.

[Lyudmil Tsvetkov]

not all of those are endgames?

where did you get those?

are not those some of the positions from the Imbalances section of my latest book?

That is correct. I hope you don't mind i use them.

no, it is just that they don't have side to move, so someone decided whose turn it is.

[Nordlandia]

not all of those are endgames?

where did you get those?

are not those some of the positions from the Imbalances section of my latest book?

That is correct. I hope you don't mind i use them.

no, it is just that they don't have side to move, so someone decided whose turn it is.

The reason i altered the side to move is because the advantage for one side is more or less with this.

For example

white to move +1.55 advantage

black to move +1.15

115cp deficit is certainly more sustainable position than 155cp deficit

[Nordlandia]

[d]r3k3/4bp1p/p1R1pn2/8/8/5P2/P1P2P1P/5RK1 b - - 0 3

https://live.followchess.com/#!24th-pro ... /525982686

[peter]

Hi!

[d]r3k3/4bp1p/p1R1pn2/8/8/5P2/P1P2P1P/5RK1 b - - 0 3

[pgn]
[Event "?, Schnellschach 30m+5s"]
[Site "?"]
[Date "2017.10.08"]
[Round "1"]
[White "Houdini 6.02 Pro x64-popc"]
[Black "S_XPrO 051017 x64 popcnt"]
[Result "0-1"]
[SetUp "1"]
[FEN "r3k3/4bp1p/p1R1pn2/8/8/5P2/P1P2P1P/5RK1 b - - 0 3"]
[PlyCount "159"]

3... Kd7 4. Rc4 Rb8 5. f4 Rb5 6. Rd1+ Bd6 7. Rd3 Ra5 8. a3 Rf5 9. Rcd4 Ne8 10.
Rc4 Ke7 11. Kf1 Nf6 12. Rc6 Bxf4 13. Rxa6 Bxh2 14. Ra7+ Kf8 15. Kg2 Be5 16. Ra4
h5 17. Rc4 Rg5+ 18. Kf1 Nd5 19. Rf3 Kg7 20. Rh3 Rf5 21. Rb3 Nf4 22. Re4 h4 23.
a4 Bd6 24. Rb5 h3 25. Kg1 Nd5 26. Re1 Rf4 27. a5 Nf6 28. Rg5+ Kf8 29. Rg3 h2+
30. Kg2 Ne4 31. Rf3 h1=B+ 32. Rxh1 Rg4+ 33. Kf1 Nd2+ 34. Ke2 Nxf3 35. Kxf3 Ra4
36. Rh5 Ra2 37. a6 Rxa6 38. Ke2 Ra2 39. Kd1 f5 40. Rh4 Bc5 41. f3 Ke7 42. Kd2
Ra3 43. c3 Ra2+ 44. Kd3 Rf2 45. Rh3 Bd6 46. Rh7+ Kf6 47. c4 Rxf3+ 48. Kd4 Be5+
49. Kc5 f4 50. Rh8 Rc3 51. Rf8+ Ke7 52. Rg8 Rg3 53. Rc8 Ra3 54. Kb4 Ra1 55. Kb5
f3 56. Rc6 Kd7 57. Rb6 Rb1+ 58. Kc5 Rxb6 59. Kxb6 f2 60. Ka7 f1=Q 61. Kb6 Qxc4
62. Ka7 Qa6+ 63. Kxa6 Bd4 64. Kb5 e5 65. Kc4 Kd6 66. Kd3 Kd5 67. Kc2 e4 68. Kc1
e3 69. Kd1 Ke4 70. Ke2 Ba1 71. Kf1 Kd3 72. Ke1 e2 73. Kf2 Bd4+ 74. Kf3 e1=Q 75.
Kg4 Qe4+ 76. Kg5 Bg7 77. Kh5 Bh6 78. Kxh6 Qe7 79. Kh5 Ke4 80. Kg6 Kf4 81. Kh6
Kf5 82. Kh5 Qg5# 0-1
[/pgn]

[Nordlandia]

Peter Martan - endgame is probably beyond threshold of holdable.

RR vs RBN is relatively big advantage, often +1 if not more.

[d]1r4k1/p2b1pp1/4pn1p/8/2p2Q2/5B2/PqP2PPP/R4RK1 b - - 0 22 | Compensation for the exchange?

[Nordlandia]

Interesting material imbalance ♗♘ vs ♜♟

[d]r3r1k1/p4ppp/8/2pp2Q1/R4B2/1P4P1/P3qPNP/6K1 w - - 0 1

Game can be found in the link ->

Code: Select all

http://live.followchess.com/#!tatry-open-2017/1675088688