Is it a draw?

[MM]

Hi all,

Houdini 2.0c drew this position against Critter 1.4.....

20638: Houdini 2.0c Pro x64 - Critter 1.4 64-bit SSE4_RV, utente-PC, Blitz 2m+1s
[d]8/7k/7P/K5P1/8/B2n4/8/8 w - - 0 1

Analysis by Houdini 2.0c Pro x64:

58.Rb6 Ce5 59.Rc7 Rg6 60.Ac1 Cd3 61.Ae3 Ce5 62.Rd8 Cf7+ 63.Re7 Ch8 64.Ac1 Rh7 65.Rf8 Cg6+ 66.Rf7 Ch4 67.Rf6 Cg6 68.Ad2 Cf8 69.Rf5 Cg6 70.Ac1 Ch8 71.Ae3 Cg6 72.Re4 Ce7 73.Ac1 Rg6 74.Af4 Cc8 75.Rd5 Ce7+ 76.Rd6 Cf5+ 77.Re5 Ch4 78.Re4 Rf7 79.Ad2 Cg6 80.Rf5 Ce7+ 81.Rf4 Rg6 82.Re5 Rf7 83.Ac3
+- (3.08) Profondità: 42/56 00:03:07 856mN



Analysis by Critter 1.4 64-bit SSE4_RV:

58.Rb5 Ce5 59.Ad6 Cf3 60.Af4 Cg1 61.Rc6 Ce2 62.Ae3 Cg3 63.Rd7 Cf5 64.Ac1 Rg6 65.Re8 Rh7 66.Rf8 Cd6 67.Af4 Cf5 68.Rf7 Ch4 69.Ae3 Cg6 70.Rf6 Cf8 71.Re7 Cg6+ 72.Rf7 Ce5+ 73.Rf8 Cg6+ 74.Re8 Ce5 75.Af4 Cg6 76.Ac1 Ch4 77.Rf8 Cf5 78.Rf7 Ch4 79.Rf6 Cg6 80.Ad2 Ch4 81.Ae3 Cg6 82.Ac1 Cf8 83.Rf5 Cg6 84.Ae3 Ce7+ 85.Rf6 Cg6
+- (3.68) Profondità: 40/51 00:00:40 679mN

It should be a draw with a block with king in h7 and the knight that blocks in g6.





[d]8/5K1k/6nP/6P1/8/4B3/8/8 b - - 0 1

Analysis by Houdini 2.0c Pro x64:

66...Ce5+ 67.Re7 Cf3 68.Rf6 Ch4 69.Ac1 Cg6 70.Ad2 Ch4 71.Af4 Cg6 72.Rf5 Ch4+ 73.Re5 Rg6 74.Ac1 Rh7 75.Rf4 Cg6+ 76.Rf5 Ce7+ 77.Re6 Cg6 78.Rf6 Ch4 79.Ad2 Cg6 80.Ae3 Ch4 81.Ac1
+- (3.24) Profondità: 42/56 00:00:26 504mN

It is impossible to break the block.



Regards

[zullil]

Hi all,

Houdini 2.0c drew this position against Critter 1.4.....

20638: Houdini 2.0c Pro x64 - Critter 1.4 64-bit SSE4_RV, utente-PC, Blitz 2m+1s
[d]8/7k/7P/K5P1/8/B2n4/8/8 w - - 0 1

Yes, it's a drawn position. Visit http://www.shredderchess.com/online-che ... abase.html

[Maharadja]

Hi all,

Houdini 2.0c drew this position against Critter 1.4.....

20638: Houdini 2.0c Pro x64 - Critter 1.4 64-bit SSE4_RV, utente-PC, Blitz 2m+1s
[d]8/7k/7P/K5P1/8/B2n4/8/8 w - - 0 1

Analysis by Houdini 2.0c Pro x64:

58.Rb6 Ce5 59.Rc7 Rg6 60.Ac1 Cd3 61.Ae3 Ce5 62.Rd8 Cf7+ 63.Re7 Ch8 64.Ac1 Rh7 65.Rf8 Cg6+ 66.Rf7 Ch4 67.Rf6 Cg6 68.Ad2 Cf8 69.Rf5 Cg6 70.Ac1 Ch8 71.Ae3 Cg6 72.Re4 Ce7 73.Ac1 Rg6 74.Af4 Cc8 75.Rd5 Ce7+ 76.Rd6 Cf5+ 77.Re5 Ch4 78.Re4 Rf7 79.Ad2 Cg6 80.Rf5 Ce7+ 81.Rf4 Rg6 82.Re5 Rf7 83.Ac3
+- (3.08) Profondità: 42/56 00:03:07 856mN



Analysis by Critter 1.4 64-bit SSE4_RV:

58.Rb5 Ce5 59.Ad6 Cf3 60.Af4 Cg1 61.Rc6 Ce2 62.Ae3 Cg3 63.Rd7 Cf5 64.Ac1 Rg6 65.Re8 Rh7 66.Rf8 Cd6 67.Af4 Cf5 68.Rf7 Ch4 69.Ae3 Cg6 70.Rf6 Cf8 71.Re7 Cg6+ 72.Rf7 Ce5+ 73.Rf8 Cg6+ 74.Re8 Ce5 75.Af4 Cg6 76.Ac1 Ch4 77.Rf8 Cf5 78.Rf7 Ch4 79.Rf6 Cg6 80.Ad2 Ch4 81.Ae3 Cg6 82.Ac1 Cf8 83.Rf5 Cg6 84.Ae3 Ce7+ 85.Rf6 Cg6
+- (3.68) Profondità: 40/51 00:00:40 679mN

It should be a draw with a block with king in h7 and the knight that blocks in g6.





[d]8/5K1k/6nP/6P1/8/4B3/8/8 b - - 0 1

Analysis by Houdini 2.0c Pro x64:

66...Ce5+ 67.Re7 Cf3 68.Rf6 Ch4 69.Ac1 Cg6 70.Ad2 Ch4 71.Af4 Cg6 72.Rf5 Ch4+ 73.Re5 Rg6 74.Ac1 Rh7 75.Rf4 Cg6+ 76.Rf5 Ce7+ 77.Re6 Cg6 78.Rf6 Ch4 79.Ad2 Cg6 80.Ae3 Ch4 81.Ac1
+- (3.24) Profondità: 42/56 00:00:26 504mN

It is impossible to break the block.



Regards

Hi,

funny, I had yesterday almost an exact position like this in a houdini 1.5 vs critter 1.4 match. The only difference was that the houdini's pawns were on f5 an g6. I also thought it was a win which houdini could not "see", but after checking the shredderwebsite I discovered it was a draw.

[MM]

Hi all,

Houdini 2.0c drew this position against Critter 1.4.....

20638: Houdini 2.0c Pro x64 - Critter 1.4 64-bit SSE4_RV, utente-PC, Blitz 2m+1s
[d]8/7k/7P/K5P1/8/B2n4/8/8 w - - 0 1

Analysis by Houdini 2.0c Pro x64:

58.Rb6 Ce5 59.Rc7 Rg6 60.Ac1 Cd3 61.Ae3 Ce5 62.Rd8 Cf7+ 63.Re7 Ch8 64.Ac1 Rh7 65.Rf8 Cg6+ 66.Rf7 Ch4 67.Rf6 Cg6 68.Ad2 Cf8 69.Rf5 Cg6 70.Ac1 Ch8 71.Ae3 Cg6 72.Re4 Ce7 73.Ac1 Rg6 74.Af4 Cc8 75.Rd5 Ce7+ 76.Rd6 Cf5+ 77.Re5 Ch4 78.Re4 Rf7 79.Ad2 Cg6 80.Rf5 Ce7+ 81.Rf4 Rg6 82.Re5 Rf7 83.Ac3
+- (3.08) Profondità: 42/56 00:03:07 856mN



Analysis by Critter 1.4 64-bit SSE4_RV:

58.Rb5 Ce5 59.Ad6 Cf3 60.Af4 Cg1 61.Rc6 Ce2 62.Ae3 Cg3 63.Rd7 Cf5 64.Ac1 Rg6 65.Re8 Rh7 66.Rf8 Cd6 67.Af4 Cf5 68.Rf7 Ch4 69.Ae3 Cg6 70.Rf6 Cf8 71.Re7 Cg6+ 72.Rf7 Ce5+ 73.Rf8 Cg6+ 74.Re8 Ce5 75.Af4 Cg6 76.Ac1 Ch4 77.Rf8 Cf5 78.Rf7 Ch4 79.Rf6 Cg6 80.Ad2 Ch4 81.Ae3 Cg6 82.Ac1 Cf8 83.Rf5 Cg6 84.Ae3 Ce7+ 85.Rf6 Cg6
+- (3.68) Profondità: 40/51 00:00:40 679mN

It should be a draw with a block with king in h7 and the knight that blocks in g6.





[d]8/5K1k/6nP/6P1/8/4B3/8/8 b - - 0 1

Analysis by Houdini 2.0c Pro x64:

66...Ce5+ 67.Re7 Cf3 68.Rf6 Ch4 69.Ac1 Cg6 70.Ad2 Ch4 71.Af4 Cg6 72.Rf5 Ch4+ 73.Re5 Rg6 74.Ac1 Rh7 75.Rf4 Cg6+ 76.Rf5 Ce7+ 77.Re6 Cg6 78.Rf6 Ch4 79.Ad2 Cg6 80.Ae3 Ch4 81.Ac1
+- (3.24) Profondità: 42/56 00:00:26 504mN

It is impossible to break the block.



Regards

Hi,

funny, I had yesterday almost an exact position like this in a houdini 1.5 vs critter 1.4 match. The only difference was that the houdini's pawns were on f5 an g6. I also thought it was a win which houdini could not "see", but after checking the shredderwebsite I discovered it was a draw.

Yes, funny coincidence

Regards

[MM]

Hi all,

Houdini 2.0c drew this position against Critter 1.4.....

20638: Houdini 2.0c Pro x64 - Critter 1.4 64-bit SSE4_RV, utente-PC, Blitz 2m+1s
[d]8/7k/7P/K5P1/8/B2n4/8/8 w - - 0 1

Yes, it's a drawn position. Visit http://www.shredderchess.com/online-che ... abase.html

Hi,

thanks for the link, anyway i was pretty sure that it was draw because i don't see any way for white to remove the King from h7 and to push the pawn in g6 without losing it.

Regards