1rb3nr/1pq1pk1p/3p4/p1P2Pp1/Pn1b2NP/N1P1P1R1/RBQP1P2/4KB2 w - - 2 20
FEN state: 1rb3nr/1pq1pk1p/3p4/p1P2Pp1/Pn1b2NP/N1P1P1R1/RBQP1P2/4KB2 w - - 2 20 ; Best move: c3b4
The current state of the chess board is: Black rook at b8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at b7, black queen at c7, black pawn at e7, black king at f7 and black pawn at h7. Black pawn at d6. Black pawn at a5, white pawn at c5, white pawn at f5 and black pawn at g5. White pawn at a4, black knight at b4, black bishop at d4, white knight at g4 and white pawn at h4. White knight at a3, white pawn at c3, white pawn at e3 and white rook at g3. White rook at a2, white bishop at b2, white queen at c2, white pawn at d2 and white pawn at f2. White king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. White to move.