r1b1k3/pppp1pBr/4p1p1/5n1p/P2P2n1/1PPQP3/R4NPP/1N2KB1R w q - 2 15
FEN state: r1b1k3/pppp1pBr/4p1p1/5n1p/P2P2n1/1PPQP3/R4NPP/1N2KB1R w q - 2 15 ; Best move: f2g4
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at e8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7, white bishop at g7 and black rook at h7. Black pawn at e6 and black pawn at g6. Black knight at f5 and black pawn at h5. White pawn at a4, white pawn at d4 and black knight at g4. White pawn at b3, white pawn at c3, white queen at d3 and white pawn at e3. White rook at a2, white knight at f2, white pawn at g2 and white pawn at h2. White knight at b1, white king at e1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 2. Full move number is 15. White to move.