Problem Display
PID: 134600 (6R1/P7/7N/4P3/2pK4/2B2PNB/4Pkpp/6bR w - - 0 1)

Bettmann, Henry Wald

The Theory of Pawn Promotion, 1912

6R1/P7/7N/4P3/2pK4/2B2PNB/4Pkpp/6bR

#3

11 + 5


SOLUTION


  • SOUND
  • Tries
    • 1.a8Q?
      • threat
        • 2.Ke4
          • threat
            • 3.Qa7#
        • 2.Qe4
          • threat
            • 3.Qe3#
        • 2.Qa1
          • threat
            • 3.Be1#
            • 3.Qe1#
        • 2.Qa2
          • 2...gxh1Q
            • 3.Sxh1#
            • 3.Se4#
          • 2...gxh1S
            • 3.Sxh1#
            • 3.Se4#
          • 2...gxh1B
            • 3.Sxh1#
            • 3.Se4#
          • 2...gxh1R
            • 3.Sxh1#
            • 3.Se4#
        • 2.Qa5
          • threat
            • 3.Be1#
        • 2.Qa7
          • threat
            • 3.Kxc4#
            • 3.Ke4#
            • 3.Kd5#
      • 1...gxh1Q
        • 2.Qe4
          • threat
            • 3.Sxh1#
            • 3.Qe3#
          • 2...Qxf3
            • 3.Qxf3#
        • 2.Qa1
          • threat
            • 3.Be1#
            • 3.Qe1#
            • 3.Qf1#
        • 2.Qa5
          • threat
            • 3.Be1#
      • 1...gxh1S
        • 2.Qe4
          • 2...Sxg3
            • 3.Sg4#
            • 3.Qe3#
        • 2.Qa1
          • 2...Sxg3
            • 3.Qe1#
        • 2.Qa2
          • 2...Sxg3
            • 3.Sg4#
        • 2.f4
          • 2...Sxg3
            • 3.Qg2#
            • 3.Qf3#
      • 1...gxh1B
        • 2.Qe4
          • threat
            • 3.Sxh1#
            • 3.Qe3#
        • 2.Qa1
          • threat
            • 3.Be1#
            • 3.Qe1#
            • 3.Qf1#
        • 2.Qa5
          • threat
            • 3.Be1#
        • 2.Qa7
          • threat
            • 3.Kxc4#
            • 3.Ke4#
            • 3.Kd5#
      • 1...gxh1R!
  • Keys
    • 1.a8R!
      • threat
        • 2.Ra1
          • threat
            • 3.Be1#
        • 2.Ra2
          • 2...gxh1Q
            • 3.Sxh1#
            • 3.Se4#
          • 2...gxh1S
            • 3.Sxh1#
            • 3.Se4#
          • 2...gxh1B
            • 3.Sxh1#
            • 3.Se4#
          • 2...gxh1R
            • 3.Sxh1#
            • 3.Se4#
      • 1...gxh1Q
        • 2.Ra1
          • threat
            • 3.Be1#
            • 3.Rf1#
      • 1...gxh1S
        • 2.Ra2
          • 2...Sxg3
            • 3.Sg4#
      • 1...gxh1B
        • 2.Ra1
          • threat
            • 3.Be1#
            • 3.Rf1#
      • 1...gxh1R
        • 2.e3
          • 2...Kxf3
            • 3.Raf8#

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