MESON Chess Problem Database

Problem Display
PID: 229236 (8/p1P1P3/P7/1KNkrN1R/2p5/2P5/8/8 w - - 0 1)

Almay, Joszef

Uj Nemezdek, 1926

8/p1P1P3/P7/1KNkrN1R/2p5/2P5/8/8

#2

8 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.e8S?
      • threat
        • 2.Se3#
        • 2.Se7#
        • 2.Sf6#
      • 1...Rxf5
        • 2.Rxf5#
      • 1...Re1
        • 2.Se3#
        • 2.Se7#
      • 1...Re2
        • 2.Se3#
        • 2.Se7#
      • 1...Re3
        • 2.Sxe3#
        • 2.Se7#
      • 1...Re4
        • 2.Se3#
        • 2.Se7#
      • 1...Re6
        • 2.Se3#
        • 2.Se7#
      • 1...Re7
        • 2.Se3#
        • 2.Sxe7#
      • 1...Rxe8!
  • Keys
    • 1.c8S!
      • threat
        • 2.Se3#
      • 1...Rxf5
        • 2.Rxf5#
      • 1...Re3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(H);
      • Threat
        • DUALS(3)
      • Vars
        • R(c);OGATE,P_SPINR(c),XS(D)::R(E),XR(c)
      • Refutation
        • R(c);XS(H)
  • Actual
    • P(G);
    • Threat
      • S(D)
    • Vars
      • R(c);OGATE,P_SPINR(c),XS(D)::R(E),XR(c)
      • R(c);::R(E)+S(D),DCHECK,XR(c)
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