MESON Chess Problem Database

Problem Display
PID: 142578 (2R4K/p7/rkPpN3/p1bpQ3/p7/2B5/8/2R5 w - - 0 1)

Gvozdjak, Peter

3rd Prize, Hlas l'udu, 1989

2R4K/p7/rkPpN3/p1bpQ3/p7/2B5/8/2R5

#2

7 + 8

702 Phenix 1990

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Rb1#
    • 1...Bf2
      • 2.Rb1#
    • 1...Be3
      • 2.Rb1#
    • 1...Bd4
      • 2.Rb1#
  • Tries
    • 1.Bd4?
      • threat
        • 2.Rb1#
      • 1...Bxd4
        • 2.Rb8#
      • 1...Kb5!
    • 1.Qg7?
      • threat
        • 2.Qb7#
      • 1...Bd4
        • 2.Rb1#
      • 1...Kb5!
  • Keys
    • 1.Qxd5!
      • threat
        • 2.Rb8#
      • 1...Bd4+
        • 2.Bxd4#
      • 1...Kb5
        • 2.Rb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(c);N_GUARD::R(A)
    • B(c);N_GUARD,P_PINQ(C)::R(A)
  • Tries
    • Try
      • B(B);P_PINB(c)
      • Threat
        • R(A)
      • Vars
        • B(c);N_SPINB(c),P_PINQ(C),XB(B)::R(F)
      • Refutation
        • K(f);N_SPINB(c),P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • B(c);N_GUARD,P_PINQ(C)::R(A)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • Q(C);XP(d)
    • Threat
      • R(F)
    • Vars
      • B(c);CHECK,OGATEB::B(B),XB(c)
      • K(f);P-FLIGHT,P_SPINB(c)::R(A)
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