rnb1kbn1/p2p1p2/4p1p1/qN3Qr1/1p1p3p/P4PPP/1PPKP3/3R1BNR w q - 0 13
FEN state: rnb1kbn1/p2p1p2/4p1p1/qN3Qr1/1p1p3p/P4PPP/1PPKP3/3R1BNR w q - 0 13 ; Best move: f5g5
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 a7, black pawn at d7 and black pawn at f7. Black pawn at e6 and black pawn at g6. Black queen at a5, white knight at b5, white queen at f5 and black rook at g5. Black pawn at b4, black pawn at d4 and black pawn at h4. White pawn at a3, white pawn at f3, white pawn at g3 and white pawn at h3. White pawn at b2, white pawn at c2, white king at d2 and white pawn at e2. White rook at d1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 13. White to move.