r1b1k2r/pp4Rp/Q1n2b1n/1BPp1p2/3pp3/P3Pq1P/1P1K4/RNB3N1 w - - 4 20
FEN state: r1b1k2r/pp4Rp/Q1n2b1n/1BPp1p2/3pp3/P3Pq1P/1P1K4/RNB3N1 w - - 4 20 ; Best move: b5c6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, white rook at g7 and black pawn at h7. White queen at a6, black knight at c6, black bishop at f6 and black knight at h6. White bishop at b5, white pawn at c5, black pawn at d5 and black pawn at f5. Black pawn at d4 and black pawn at e4. White pawn at a3, white pawn at e3, black queen at f3 and white pawn at h3. White pawn at b2 and white king at d2. White rook at a1, white knight at b1, white bishop at c1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. White to move.