MESON Chess Problem Database

Problem Display
PID: 17501 (8/8/5Q2/8/1P1pk3/3RP3/2K5/8 w - - 0 1)

Massmann, Wilhelm Karl Heinrich

Die Schwalbe, 1947

8/8/5Q2/8/1P1pk3/3RP3/2K5/8

#2

5 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Rxd4#
    • 1...dxe3
      • 2.Rd4#
  • Tries
    • 1.Kb1?
      • 1...Kd5
        • 2.Rxd4#
      • 1...dxe3
        • 2.Rd4#
      • 1...Kxd3!
    • 1.Kc1?
      • 1...Kd5
        • 2.Rxd4#
      • 1...dxe3
        • 2.Rd4#
      • 1...Kxd3!
    • 1.Kb2?
      • 1...Kd5
        • 2.Rxd4#
      • 1...dxe3
        • 2.Rd4#
      • 1...Kxd3!
    • 1.Kd2?
      • threat
        • 2.Rxd4#
      • 1...Kd5
        • 2.Rxd4#
      • 1...dxe3+!
    • 1.Kb3?
      • 1...Kd5
        • 2.Rxd4#
      • 1...dxe3
        • 2.Rd4#
      • 1...Kxd3!
    • 1.Rd1?
      • 1...Kxe3
        • 2.Re1#
      • 1...Kd5
        • 2.Rxd4#
      • 1...dxe3
        • 2.Rd4#
      • 1...d3+!
    • 1.b5?
      • 1...dxe3
        • 2.Rd4#
      • 1...Kd5!
  • Keys
    • 1.Kd1!
      • 1...Kxd3
        • 2.Qxd4#
      • 1...Kd5
        • 2.Rxd4#
      • 1...dxe3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINP(a),S_FLIGHT::R1(B),XP(a)
    • P(a);SBLOCK,XP(C)::R1(B)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::R1(B),XP(a)
        • P(a);SBLOCK,XP(C)::R1(B)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::R1(B),XP(a)
        • P(a);SBLOCK,XP(C)::R1(B)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::R1(B),XP(a)
        • P(a);SBLOCK,XP(C)::R1(B)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
    • Try
      • K(A);P-FLIGHT
      • Threat
        • R1(B),XP(a)
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::R1(B),XP(a)
      • Refutation
        • P(a);CHECK,XP(C)
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::R1(B),XP(a)
        • P(a);SBLOCK,XP(C)::R1(B)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
    • Try
      • R(B);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(C)::R(B)
        • K(b);P_SPINP(a),S_FLIGHT::R1(B),XP(a)
        • P(a);SBLOCK,XP(C)::R1(B)
      • Refutation
        • P(a);CHECK
    • Try
      • P(D);
      • Vars
        • P(a);SBLOCK,XP(C)::R1(B)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(b);S_FLIGHT,XR(B)::QAR1(E),XP(a)
      • K(b);P_SPINP(a),S_FLIGHT::R1(B),XP(a)
      • P(a);SBLOCK,XP(C)::R1(B)
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