r2q1k1r/p1Np3p/bpn4n/2P1b1p1/4pp2/P2PPN1P/RP1B1PP1/3QKB1R w K - 1 15
FEN state: r2q1k1r/p1Np3p/bpn4n/2P1b1p1/4pp2/P2PPN1P/RP1B1PP1/3QKB1R w K - 1 15 ; Best move: f3e5
The current state of the chess board is: Black rook at a8, black queen at d8, black king at f8 and black rook at h8. Black pawn at a7, white knight at c7, black pawn at d7 and black pawn at h7. Black bishop at a6, black pawn at b6, black knight at c6 and black knight at h6. White pawn at c5, black bishop at e5 and black pawn at g5. Black pawn at e4 and black pawn at f4. White pawn at a3, white pawn at d3, white pawn at e3, white knight at f3 and white pawn at h3. White rook at a2, white pawn at b2, white bishop at d2, white pawn at f2 and white pawn at g2. White queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 15. White to move.