MESON Chess Problem Database

Problem Display
PID: 104537 (1B4BQ/2rp2RK/nN2PP2/4kN1R/8/8/3P4/8 w - - 0 1)

Pernaric, Josip

PZR & Feniks IT, 2004-2005

1B4BQ/2rp2RK/nN2PP2/4kN1R/8/8/3P4/8

#2

11 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Rg1#
      • 2.Rg2#
      • 2.Rg3#
      • 2.Rg4#
      • 2.Rgg5#
      • 2.Rg6#
      • 2.Rxd7#
      • 2.Re7#
  • Tries
    • 1.Sg3+?
      • 1...Kd4
        • 2.Rd5#
      • 1...Kf4
        • 2.Rf5#
      • 1...Kxf6
        • 2.Se4#
        • 2.Sd5#
        • 2.Rf5#
        • 2.Rxd7#
      • 1...Kd6!
    • 1.Sd6+?
      • 1...Kd4
        • 2.Rd5#
      • 1...Kf4
        • 2.Rf5#
      • 1...Kxf6
        • 2.Sd5#
        • 2.Se4#
        • 2.Se8#
        • 2.Rf5#
        • 2.Rxd7#
      • 1...Kxd6!
  • Keys
    • 1.Rg4!
      • threat
        • 2.d4#
      • 1...dxe6+
        • 2.f7#
      • 1...d5+
        • 2.Sd7#
      • 1...d6+
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);N_SPINR(c),OGATE,S_FLIGHT::R1(C)
        • K(a);S_FLIGHT::R1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK,N_PINR(c)
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(C)
        • K(a);S_FLIGHT::R1(C)
      • Refutation
        • K(a);P_SPINR(c),S_FLIGHT,XS(B)
  • Actual
    • R(G);
    • Threat
      • P(A)
    • Vars
      • P(d);CHECK,SBLOCK,XP(E)::QAB(K)+P(F)
      • P(d);CHECK,SBLOCK::S(D)
      • P(d);CHECK,N_SPINR(c),SBLOCK::R(C)+S(B)
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