MESON Chess Problem Database

Problem Display
PID: 212188 (r1b2B2/prP5/B6n/8/8/K4Np1/5P1b/k7 w - - 0 1)

Courtenay, Edward H

American Chess Nuts, 1868

r1b2B2/prP5/B6n/8/8/K4Np1/5P1b/k7

#4

6 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Sd2!
      • threat
        • 2.Bg7+
          • 2...Rb2
            • 3.Bxb2#
      • 1...Rxc7
        • 2.Bg7+
          • 2...Rxg7
            • 3.Sb3+
              • 3...Kb1
                • 4.Bd3#
      • 1...gxf2
        • 2.Bg7+
          • 2...Be5
            • 3.Bxe5+
              • 3...Rb2
                • 4.Bxb2#
      • 1...Rb2
        • 2.Bg7
          • threat
            • 3.Bxb2#
          • 2...Rb8
            • 3.cxb8Q
              • threat
                • 4.Bxb2#
                • 4.Qxb2#
            • 3.cxb8S
              • threat
                • 4.Bxb2#
            • 3.cxb8B
              • threat
                • 4.Bxb2#
            • 3.cxb8R
              • threat
                • 4.Bxb2#
      • 1...Rab8
        • 2.Bg7+
          • 2...Rb2
            • 3.cxb8Q
              • threat
                • 4.Bxb2#
                • 4.Qxb2#
            • 3.cxb8S
              • threat
                • 4.Bxb2#
            • 3.cxb8B
              • threat
                • 4.Bxb2#
            • 3.cxb8R
              • threat
                • 4.Bxb2#
        • 2.Bxb7
          • threat
            • 3.Bg7#
          • 2...Rxb7
            • 3.Bg7+
              • 3...Rb2
                • 4.Bxb2#
          • 2...gxf2
            • 3.Sb3+
              • 3...Kb1
                • 4.Be4#
            • 3.Bg7+
              • 3...Be5
                • 4.Bxe5#
          • 2...Sg4
            • 3.Sb3+
              • 3...Kb1
                • 4.Be4#
            • 3.Bg7+
              • 3...Se5
                • 4.Bxe5#
              • 3...Sf6
                • 4.Bxf6#
          • 2...Sf5
            • 3.Sb3+
              • 3...Kb1
                • 4.Be4#
          • 2...Sf7
            • 3.Sb3+
              • 3...Kb1
                • 4.Be4#
            • 3.Bg7+
              • 3...Se5
                • 4.Bxe5#
          • 2...Sg8
            • 3.Sb3+
              • 3...Kb1
                • 4.Be4#
            • 3.Bg7+
              • 3...Sf6
                • 4.Bxf6#
          • 2...g2
            • 3.Sb3+
              • 3...Kb1
                • 4.Be4#
            • 3.Bg7+
              • 3...Be5
                • 4.Bxe5#
      • 1...Sg4
        • 2.Bg7+
          • 2...Se5
            • 3.Bxe5+
              • 3...Rb2
                • 4.Bxb2#
          • 2...Sf6
            • 3.Bxf6+
              • 3...Rb2
                • 4.Bxb2#
      • 1...Sf5
        • 2.Bxb7
          • threat
            • 3.Sb3+
              • 3...Kb1
                • 4.Be4#
            • 3.Bb4
              • threat
                • 4.Bc3#
          • 2...Sd4
            • 3.Bg7
              • threat
                • 4.Bxd4#
      • 1...Sf7
        • 2.Bg7+
          • 2...Se5
            • 3.Bxe5+
              • 3...Rb2
                • 4.Bxb2#
      • 1...Sg8
        • 2.Bg7+
          • 2...Sf6
            • 3.Bxf6+
              • 3...Rb2
                • 4.Bxb2#
      • 1...g2
        • 2.Bg7+
          • 2...Be5
            • 3.Bxe5+
              • 3...Rb2
                • 4.Bxb2#

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