1r1qkbnr/pbnpp2p/8/1ppP1pp1/7P/5P1R/PPPKP1P1/RNBQ1BN1 b k - 0 10
FEN state: 1r1qkbnr/pbnpp2p/8/1ppP1pp1/7P/5P1R/PPPKP1P1/RNBQ1BN1 b k - 0 10 ; Best move: g5g4
The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black knight at c7, black pawn at d7, black pawn at e7 and black pawn at h7. Black pawn at b5, black pawn at c5, white pawn at d5, black pawn at f5 and black pawn at g5. White pawn at h4. White pawn at f3 and white rook at h3. White pawn at a2, white pawn at b2, white pawn at c2, white king at d2, white pawn at e2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white bishop at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 10. Black to move.