r6b/pbpp3r/n1P1k2n/Pp3Np1/4p3/q1RPP2P/1P1N2P1/2B1KB1R w K - 9 20
FEN state: r6b/pbpp3r/n1P1k2n/Pp3Np1/4p3/q1RPP2P/1P1N2P1/2B1KB1R w K - 9 20 ; Best move: c3a3
The current state of the chess board is: Black rook at a8 and black bishop at h8. Black pawn at a7, black bishop at b7, black pawn at c7, black pawn at d7 and black rook at h7. Black knight at a6, white pawn at c6, black king at e6 and black knight at h6. White pawn at a5, black pawn at b5, white knight at f5 and black pawn at g5. Black pawn at e4. Black queen at a3, white rook at c3, white pawn at d3, white pawn at e3 and white pawn at h3. White pawn at b2, white knight at d2 and white pawn at g2. 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 9. Full move number is 20. White to move.