rnbq1b2/4k3/pp1p1npr/P1pp4/2P3PN/2R2p1P/1P1PPP2/Q1B1KB1R w K - 0 20
FEN state: rnbq1b2/4k3/pp1p1npr/P1pp4/2P3PN/2R2p1P/1P1PPP2/Q1B1KB1R w K - 0 20 ; Best move: h4f3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black bishop at f8. Black king at e7. Black pawn at a6, black pawn at b6, black pawn at d6, black knight at f6, black pawn at g6 and black rook at h6. White pawn at a5, black pawn at c5 and black pawn at d5. White pawn at c4, white pawn at g4 and white knight at h4. White rook at c3, black pawn at f3 and white pawn at h3. White pawn at b2, white pawn at d2, white pawn at e2 and white pawn at f2. White queen at a1, 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 20. White to move.