1nb3nr/r1p1q1bp/1p3kp1/p1Ppp3/PP3p1P/R2P4/2QNPPPR/2B1KBN1 w - - 9 20
FEN state: 1nb3nr/r1p1q1bp/1p3kp1/p1Ppp3/PP3p1P/R2P4/2QNPPPR/2B1KBN1 w - - 9 20 ; Best move: c5b6
The current state of the chess board is: Black knight at b8, black bishop at c8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at c7, black queen at e7, black bishop at g7 and black pawn at h7. Black pawn at b6, black king at f6 and black pawn at g6. Black pawn at a5, white pawn at c5, black pawn at d5 and black pawn at e5. White pawn at a4, white pawn at b4, black pawn at f4 and white pawn at h4. White rook at a3 and white pawn at d3. White queen at c2, white knight at d2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White bishop at c1, white king at e1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 9. Full move number is 20. White to move.