rnb1kbn1/1p5r/p1pp3p/4pPp1/5P1P/N2P2K1/P3QR2/R1B2BN1 b q - 0 13
FEN state: rnb1kbn1/1p5r/p1pp3p/4pPp1/5P1P/N2P2K1/P3QR2/R1B2BN1 b q - 0 13 ; Best move: g5f4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at b7 and black rook at h7. Black pawn at a6, black pawn at c6, black pawn at d6 and black pawn at h6. Black pawn at e5, white pawn at f5 and black pawn at g5. White pawn at f4 and white pawn at h4. White knight at a3, white pawn at d3 and white king at g3. White pawn at a2, white queen at e2 and white rook at f2. White rook at a1, white bishop at c1, white bishop at f1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 13. Black to move.