Problem Display
PID: 34415 (8/8/8/8/RN6/K2b4/B7/k7 w - - 0 1)

Korhonen, Mika

The Problemist, 1981

8/8/8/8/RN6/K2b4/B7/k7

#4

4 + 2


3713 Snap 2019
  • SOUND
  • Keys
    • 1.Ra8!
      • threat
        • 2.Rd8
          • 2...Bb1
            • 3.Bxb1
              • 3...Kxb1
                • 4.Rd1#
          • 2...Be4
            • 3.Rd1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bf5
            • 3.Rd1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bg6
            • 3.Rd1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bh7
            • 3.Rd1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
      • 1...Bb1
        • 2.Bxb1
          • 2...Kxb1
            • 3.Rc8
              • 3...Ka1
                • 4.Rc1#
        • 2.Rc8
          • 2...Bxa2
            • 3.Rc1+
              • 3...Bb1
                • 4.Sc2#
            • 3.Sxa2
              • 3...Kb1
                • 4.Rc1#
          • 2...Bd3
            • 3.Rc1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Be4
            • 3.Rc1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bf5
            • 3.Rc1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bg6
            • 3.Rc1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bh7
            • 3.Rc1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
      • 1...Be4
        • 2.Re8
          • 2...Bb1
            • 3.Bxb1
              • 3...Kxb1
                • 4.Re1#
          • 2...Bd3
            • 3.Re1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bf5
            • 3.Re1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bg6
            • 3.Re1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bh7
            • 3.Re1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
      • 1...Bf5
        • 2.Rf8
          • 2...Bb1
            • 3.Bxb1
              • 3...Kxb1
                • 4.Rf1#
          • 2...Bd3
            • 3.Rf1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
              • 3...Bxf1
                • 4.Sc2#
          • 2...Be4
            • 3.Rf1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bg6
            • 3.Rf1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bh7
            • 3.Rf1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
      • 1...Bg6
        • 2.Rg8
          • 2...Bb1
            • 3.Bxb1
              • 3...Kxb1
                • 4.Rg1#
          • 2...Bd3
            • 3.Rg1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
              • 3...Bf1
                • 4.Sc2#
                • 4.Rxf1#
          • 2...Be4
            • 3.Rg1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bf5
            • 3.Rg1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bh7
            • 3.Rg1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
      • 1...Bh7
        • 2.Rh8
          • 2...Bb1
            • 3.Bxb1
              • 3...Kxb1
                • 4.Rh1#
          • 2...Bd3
            • 3.Rh1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
              • 3...Bf1
                • 4.Sc2#
                • 4.Rxf1#
          • 2...Be4
            • 3.Rh1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
              • 3...Bxh1
                • 4.Sc2#
          • 2...Bf5
            • 3.Rh1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#
          • 2...Bg6
            • 3.Rh1+
              • 3...Bb1
                • 4.Sc2#
                • 4.Rxb1#

Anticipated by 197976(1921)



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