Lyudmil Tsvetkov wrote:of course, as Gerold suggests, Ng4. I do not see any compensation for the pawn.
I do - the open g file and the rook on said file. Probably, that isn't enough compensation, but at least some. The main issue for Black is that castling kingside is out of question, and castling queenside takes more time.
DeepShredder 13 evaluates the position after 5. ... Nxg4 with -0.38 in favour of Black, and after 5. ... h6 with +0.15 in favour of White, both at depth 33. That's a difference of 0.53 pawns. So the compensation is worth 0.47 pawns, according to DeepShredder.
Lyudmil Tsvetkov wrote:of course, as Gerold suggests, Ng4. I do not see any compensation for the pawn.
I do - the open g file and the rook on said file. Probably, that isn't enough compensation, but at least some. The main issue for Black is that castling kingside is out of question, and castling queenside takes more time.
DeepShredder 13 evaluates the position after 5. ... Nxg4 with -0.38 in favour of Black, and after 5. ... h6 with +0.15 in favour of White, both at depth 33. That's a difference of 0.53 pawns. So the compensation is worth 0.47 pawns, according to DeepShredder.
g is a semi-open, and not an open file.
also, if black has 40cps edge after the knight capture, there is certainly no compensation.
I guess Shredder assesses both lines accurately here.
if I have to go further, I guess Ng4 simply wins the game, but that is not easy to prove.
Lyudmil Tsvetkov wrote:also, if black has 40cps edge after the knight capture, there is certainly no compensation.
If there were no compensation at all, I would expect black to have an edge of 100cps, the material value of the pawn.
I've been digging a bit deeper through the variants to include this gambit as passive knowledge in the CT800's book. The issue is that Black has the better endgame if nothing changes, but reaching that is not easy.
Black cannot castle kingside, and in most variants, not queenside, either. This in turn seriously hampers the rooks' mobility. In fact, with absolutely correct play, Black has the edge, but it is quite a narrow path from having the edge to losing the game.
Looks like a good gambit especially for blitz games, or for tournament sitations where White must make the full point at all cost.
Henk wrote:Actually there were at least ten videos from Shirov about Philidor defense on Youtube. But I can't find them anymore. Probably he deleted them.
or someone, who hates Shirov, deleted them, or someone, who was appalled by the gambit...
only playable gambit for white is the Evans gambit.
no playable gambits for black.