Problem Display
PID: 37340 (8/8/8/5K2/1R6/3k4/8/4R3 w - - 0 1)

Lindgren, Frithiof

Aftonbladet, 1928

8/8/8/5K2/1R6/3k4/8/4R3

#4

3 + 1


4349 Kleinste Schachaufgaben Drei- und Viersteiner 1970
23 Die Schwalbe 2007

SOLUTION


  • SOUND
  • Keys
    • 1.Rc1!
      • threat
        • 2.Rb2
          • threat
            • 3.Kf4
              • 3...Kd4
                • 4.Rd2#
            • 3.Ke5
              • 3...Ke3
                • 4.Rc3#
          • 2...Ke3
            • 3.Rd1
              • 3...Kf3
                • 4.Rd3#
          • 2...Kd4
            • 3.Rb3
              • 3...Kd5
                • 4.Rd3#
      • 1...Kd2
        • 2.Ke4
          • threat
            • 3.Rbb1
              • 3...Ke2
                • 4.Rb2#
                • 4.Rc2#
            • 3.Rbc4
              • 3...Ke2
                • 4.R4c2#
          • 2...Kxc1
            • 3.Kd3
              • 3...Kd1
                • 4.Rb1#
      • 1...Ke2
        • 2.Rb2+
          • 2...Kd3
            • 3.Kf4
              • 3...Kd4
                • 4.Rd2#
            • 3.Ke5
              • 3...Ke3
                • 4.Rc3#
          • 2...Ke3
            • 3.Rd1
              • 3...Kf3
                • 4.Rd3#
      • 1...Ke3
        • 2.Rb2
          • threat
            • 3.Rd1
              • 3...Kf3
                • 4.Rd3#
          • 2...Kd3
            • 3.Kf4
              • 3...Kd4
                • 4.Rd2#
            • 3.Ke5
              • 3...Ke3
                • 4.Rc3#
          • 2...Kd4
            • 3.Rb3
              • 3...Kd5
                • 4.Rd3#

FEATURES


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