rnb1k2r/1p2bpp1/2p4n/p2pN1qp/Q1P5/N6P/P2PPPP1/R1B1KB1R b KQkq - 4 10
FEN state: rnb1k2r/1p2bpp1/2p4n/p2pN1qp/Q1P5/N6P/P2PPPP1/R1B1KB1R b KQkq - 4 10 ; Best move: g5e5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at b7, black bishop at e7, black pawn at f7 and black pawn at g7. Black pawn at c6 and black knight at h6. Black pawn at a5, black pawn at d5, white knight at e5, black queen at g5 and black pawn at h5. White queen at a4 and white pawn at c4. White knight at a3 and white pawn at h3. White pawn at a2, white pawn at d2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 4. Full move number is 10. Black to move.