MESON Chess Problem Database

Problem Display
PID: 249728 (8/5p1B/1r6/1rn2R2/2pN1p2/1pPk1p1R/2bP1n2/4K1b1 w - - 0 1)

Hjelle, David

Jerusalem Post, 1950

(First published on Fri Sep 29 1950)

8/5p1B/1r6/1rn2R2/2pN1p2/1pPk1p1R/2bP1n2/4K1b1

#2

7 + 12

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Rxf3#
  • Tries
    • 1.Rxf4+?
      • 1...Rg6
        • 2.Rhxf3#
      • 1...Sce4
        • 2.Rhxf3#
        • 2.Rfxf3#
      • 1...f5
        • 2.Rhxf3#
      • 1...Sfe4!
    • 1.Re5+?
      • 1...Rg6
        • 2.Rxf3#
      • 1...Sce4
        • 2.Rxf3#
      • 1...f5
        • 2.Rxf3#
      • 1...Sfe4!
    • 1.Rf6+?
      • 1...Sce4
        • 2.Rxf3#
      • 1...Sfe4!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Rd5#
      • 1...Ke4
        • 2.Re5#
      • 1...Sfe4
        • 2.Se5#
      • 1...Sce4
        • 2.Rxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(j);SBLOCK::R(D),XP(f)
  • Tries
    • Try
      • R(F);CHECK,XP(h)
      • Vars
        • R(k);P_SPINR(k)::R(D),XP(f)
        • P(l);::R(D),XP(f)
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • R(F);CHECK
      • Vars
        • R(k);P_SPINR(k)::R(D),XP(f)
        • S(j);P_SPINS(j)::R(D),XP(f)
        • P(l);::R(D),XP(f)
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • R(F);CHECK
      • Vars
        • S(j);P_SPINS(j)::R(D),XP(f)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • S(E);
    • Threat
      • B(G)+R(F),DCHECK
    • Vars
      • K(e);N_SPINP(f),S_FLIGHT::B(G)+R(F),DCHECK
      • S(c);SBLOCK::S(E)
      • S(j);SBLOCK::R(D),XP(f)
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