MESON Chess Problem Database

Problem Display
PID: 92918 (6B1/5p2/8/1P3R2/8/8/P7/k1K5 w - - 0 1)

Werle, Allan Theodor

Tidskrift for Schack, 1950

6B1/5p2/8/1P3R2/8/8/P7/k1K5

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kc2?
      • 1...f6
        • 2.Rf1#
      • 1...Kxa2!
    • 1.Rf1?
      • 1...f5
        • 2.Kc2#
      • 1...f6
        • 2.Kc2#
      • 1...Kxa2!
  • Keys
    • 1.Rxf7!
      • 1...Kxa2
        • 2.Ra7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);::R(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XP(B)
    • Try
      • R(D);
      • Vars
        • P(b);::R(D)+K(A)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XP(B)
  • Actual
    • R(D);XP(b)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(B)::B(E)+R(D),DCHECK
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