Problem Display
PID: 53481 (1Q6/8/8/p7/kpp5/8/1R6/3K4 w - - 0 1)

Eaton, Vincent Lanius

The Chess Review, 1934

1Q6/8/8/p7/kpp5/8/1R6/3K4

#3

3 + 4


SOLUTION


  • SOUND
  • Sets
    • 1...c3
      • 2.Ra2+
        • 2...Kb3
          • 3.Qg8#
  • Tries
    • 1.Kc2?
      • threat
        • 2.Ra2#
      • 1...b3+
        • 2.Rxb3
          • threat
            • 3.Qb5#
            • 3.Qe8#
          • 2...cxb3+
            • 3.Qxb3#
      • 1...Ka3!
    • 1.Rb1?
      • 1...c3
        • 2.Kc2
          • threat
            • 3.Ra1#
          • 2...b3+
            • 3.Qxb3#
          • 2...Ka3
            • 3.Ra1#
      • 1...Ka3!
    • 1.Rxb4+?
      • 1...Ka3
        • 2.Rb1
          • threat
            • 3.Ra1#
          • 2...Ka2
            • 3.Qb2#
          • 2...Ka4
            • 3.Ra1#
        • 2.Rb2
          • 2...Ka4
            • 3.Ra2#
          • 2...c3
            • 3.Qb3#
          • 2...a4
            • 3.Qb4#
      • 1...axb4!
    • 1.Qb5+?
      • 1...Ka3
        • 2.Kc1
          • threat
            • 3.Qxa5#
          • 2...a4
            • 3.Qxb4#
      • 1...Kxb5!
    • 1.Qb6?
      • 1...b3
        • 2.Kc1
          • 2...Ka3
            • 3.Qxa5#
          • 2...c3
            • 3.Qxb3#
      • 1...c3
        • 2.Ra2+
          • 2...Kb3
            • 3.Qe6#
      • 1...Ka3!
  • Keys
    • 1.Kc1!
      • 1...Ka3
        • 2.Qb5
          • threat
            • 3.Qxa5#
          • 2...a4
            • 3.Qxb4#
      • 1...b3
        • 2.Qb6
          • 2...Ka3
            • 3.Qxa5#
          • 2...c3
            • 3.Qxb3#
      • 1...c3
        • 2.Ra2+
          • 2...Kb3
            • 3.Qg8#

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