rn2kbr1/1b1p1p2/6p1/p3Pn2/ppPP2P1/4Bq2/N1R1P1BP/3Q1KNR w - - 4 20
FEN state: rn2kbr1/1b1p1p2/6p1/p3Pn2/ppPP2P1/4Bq2/N1R1P1BP/3Q1KNR w - - 4 20 ; Best move: g1f3
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at g8. Black bishop at b7, black pawn at d7 and black pawn at f7. Black pawn at g6. Black pawn at a5, white pawn at e5 and black knight at f5. Black pawn at a4, black pawn at b4, white pawn at c4, white pawn at d4 and white pawn at g4. White bishop at e3 and black queen at f3. White knight at a2, white rook at c2, white pawn at e2, white bishop at g2 and white pawn at h2. White queen at d1, white king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. White to move.