All four corners of the board are empty in the starting position. 1. Rb7+ Ka8 The first move to a corner square. 2. Be4! (Thematic try: 2. Bh1?? Qc2+ -+) 2... Qe3! (2... Qd4+ 3. Rb4+ +-) 3. Bh1! The second move to a corner square. 3... Qe8+ Roman Theme. The black queen cannot reach the c2 square anymore so it has to find another square to give a check.4. Ka3 Qf8+ 5. Ka2 Qg8+ 6. Ka1! The third move to a corner square. 6... Qh8+ The fourth move to a corner square. Now all four corners are full!
7. Kb1 h2 8. Rh7+ Kb8 9. Rxh8+ +- The last move to a corner square. During the main line, all five pieces have moved to a corner square!
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