MESON Chess Problem Database

Problem Display
PID: 88643 (8/2Q3N1/K3Nk1q/1R5r/8/8/8/8 w - - 0 1)

Kipping, Cyril Stanley

The Problemist, 1946

8/2Q3N1/K3Nk1q/1R5r/8/8/8/8

#2

5 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rf5+?
      • 1...Kg6
        • 2.Sf8#
      • 1...Rxf5!
    • 1.Qe7+?
      • 1...Kg6
        • 2.Sf8#
      • 1...Kxe7!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qf7#
      • 1...Kg6
        • 2.Qf7#
      • 1...Qxg5
        • 2.Rb6#
      • 1...Qxg7
        • 2.Qd6#
      • 1...Rxg5
        • 2.Rb6#
      • 1...Qg6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(b);P-FLIGHT::S(C)
      • Refutation
        • R(a);XR(A)
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);P-FLIGHT::S(C)
      • Refutation
        • K(b);P_PINS(C),S_FLIGHT,XQ(D)
  • Actual
    • S(C);
    • Threat
      • QAR1(D)
    • Vars
      • K(b);P-FLIGHT::QAB1(D)
      • Q(c);SBLOCK,XS(C)::R(A)
      • Q(c);SBLOCK,XS(E)::QAR2(D)
      • R(a);SBLOCK,XS(C)::R(A)
      • Q(c);SBLOCK::QAB1(D)
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