MESON Chess Problem Database

Problem Display
PID: 15213 (7R/7n/8/8/8/1R6/7P/5K1k w - - 0 1)

Speckmann, Werner

Die Schwalbe, 1981

7R/7n/8/8/8/1R6/7P/5K1k

#2

4 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh2
      • 2.Rxh7#
  • Tries
    • 1.Rb1?
      • 1...Sg5
        • 2.Kf2#
      • 1...Sf6
        • 2.Kf2#
      • 1...Sf8
        • 2.Kf2#
      • 1...Kxh2!
    • 1.Rg3?
      • 1...Sg5
        • 2.Rg1#
      • 1...Sf6
        • 2.Rg1#
      • 1...Sf8
        • 2.Rg1#
      • 1...Kxh2!
    • 1.h4?
      • threat
        • 2.Rh3#
      • 1...Sg5
        • 2.hxg5#
      • 1...Kh2!
  • Keys
    • 1.Kf2!
      • 1...Kxh2
        • 2.Rxh7#
      • 1...Sg5
        • 2.Rb1#
      • 1...Sf6
        • 2.Rb1#
      • 1...Sf8
        • 2.Rb1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XP(B)::R(D),XS(b)
  • Tries
    • Try
      • R(C);
      • Vars
        • S(b);::R(C)+K(A)
      • Refutation
        • K(a);P-FLIGHT,P_SPINS(b),XP(B)
    • Try
      • R(C);
      • Vars
        • S(b);::R1(C)
      • Refutation
        • K(a);P-FLIGHT,P_SPINS(b),XP(B)
    • Try
      • P(B);
      • Threat
        • R(C)
      • Vars
        • S(b);OGATE::R(D)+P(B),XS(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XP(B)::R(D),XS(b)
      • S(b);::R(C)
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