MESON Chess Problem Database

Problem Display
PID: 140481 (8/8/6p1/5pB1/5Np1/5PkP/3N4/4K2R w K - 0 1)

Saarenheimo, Eero Johannes

Source?, 1946

8/8/6p1/5pB1/5Np1/5PkP/3N4/4K2R

#2

7 + 4

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...gxf3
      • 2.Sf1#
    • 1...gxh3
      • 2.Rxh3#
  • Tries
    • 1.Rh2?
      • threat
        • 2.Rg2#
      • 1...gxf3
        • 2.Sf1#
      • 1...gxh3
        • 2.Rxh3#
      • 1...Kxh2!
  • Keys
    • 1.0-0!
      • 1...gxf3
        • 2.Rxf3#
      • 1...gxh3
        • 2.Se2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK,XP(D)::S(C)
    • P(b);OGATE,XP(E)::R1(B),XP(b)
  • Tries
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • P(b);SBLOCK,XP(D)::S(C)
        • P(b);OGATE,XP(E)::R1(B),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
  • Actual
    • K(A);0-0
    • Vars
      • P(b);OGATE,XP(D)::R1(B),XP(b)
      • P(b);SBLOCK,XP(E)::S(F)
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