r1b2bn1/pp1nkp1r/3pp3/PPp3pp/Q1P5/R2P3q/4PPPP/2B1KB1R w K - 0 15
FEN state: r1b2bn1/pp1nkp1r/3pp3/PPp3pp/Q1P5/R2P3q/4PPPP/2B1KB1R w K - 0 15 ; Best move: g2h3
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black knight at d7, black king at e7, black pawn at f7 and black rook at h7. Black pawn at d6 and black pawn at e6. White pawn at a5, white pawn at b5, black pawn at c5, black pawn at g5 and black pawn at h5. White queen at a4 and white pawn at c4. White rook at a3, white pawn at d3 and black queen at h3. White pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White bishop at c1, 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 0. Full move number is 15. White to move.