rnb1k1r1/p1b3p1/1p5p/2ppp1N1/1P4nq/P2P3P/2PKPPP1/RNBQ1BR1 w q - 1 13
FEN state: rnb1k1r1/p1b3p1/1p5p/2ppp1N1/1P4nq/P2P3P/2PKPPP1/RNBQ1BR1 w q - 1 13 ; Best move: g5f3
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 g8. Black pawn at a7, black bishop at c7 and black pawn at g7. Black pawn at b6 and black pawn at h6. Black pawn at c5, black pawn at d5, black pawn at e5 and white knight at g5. White pawn at b4, black knight at g4 and black queen at h4. White pawn at a3, white pawn at d3 and white pawn at h3. White pawn at c2, white king at d2, white pawn at e2, white pawn at f2 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 rook at g1. Black queenside is the only castle move available. Half move number is 1. Full move number is 13. White to move.