1r1k3r/p1p1pp2/1pnp3b/5np1/1PBPP2p/1N2Q3/P1P1N1PP/R1B1K1R1 w Q - 3 20
FEN state: 1r1k3r/p1p1pp2/1pnp3b/5np1/1PBPP2p/1N2Q3/P1P1N1PP/R1B1K1R1 w Q - 3 20 ; Best move: e3c3
The current state of the chess board is: Black rook at b8, black king at d8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7 and black pawn at f7. Black pawn at b6, black knight at c6, black pawn at d6 and black bishop at h6. Black knight at f5 and black pawn at g5. White pawn at b4, white bishop at c4, white pawn at d4, white pawn at e4 and black pawn at h4. White knight at b3 and white queen at e3. White pawn at a2, white pawn at c2, white knight at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 3. Full move number is 20. White to move.