MESON Chess Problem Database

Problem Display
PID: 241405 (1n2B3/1rp1R1Kp/5BpN/Qq3P1k/8/5Rp1/5b2/5r2 w - - 0 1)

Hjelle, David

Parallele 50, 1949

1n2B3/1rp1R1Kp/5BpN/Qq3P1k/8/5Rp1/5b2/5r2

#2

8 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5
      • 2.Rxf5#
      • 2.Qxf5#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Qg5#
      • 1...Qxf5
        • 2.Rxf5#
      • 1...Be3!
  • Keys
    • 1.fxg6!
      • threat
        • 2.gxh7#
      • 1...hxg6
        • 2.Bxg6#
      • 1...Qg5
        • 2.Qxg5#
      • 1...Bc5
        • 2.Re5#
      • 1...c5
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • Q(d);OGATE,XP(C)::R(A),XQ(d)
      • Refutation
        • B(b);
  • Actual
    • P(C);P_PINQ(d),XP(f)
    • Threat
      • B(H)+P(C),XP(i)
    • Vars
      • P(i);OGATE,P_SPINP(i),XP(C)::B(H),XP(i)
      • Q(d);OGATE,P_PINP(C)::QAR1(B),XQ(d)
      • B(b);N_SPINQ(d),S_CUTQ(d)::R(F)
      • P(h);N_SPINQ(d),P_PINR(F),S_CUTQ(d)::R(A)
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