MESON Chess Problem Database

Problem Display
PID: 23234 (1b6/2pK4/3p1R2/1rP4Q/1p1kpP2/1P6/3B1N2/r2R4 w - - 0 1)

Gavrilovski, Zoran

The Problemist, 1996

1b6/2pK4/3p1R2/1rP4Q/1p1kpP2/1P6/3B1N2/r2R4

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...dxc5
      • 2.Qe5#
  • Tries
    • 1.Bc3+?
      • 1...Ke3
        • 2.Bd4#
      • 1...Kxc3!
    • 1.Rf5?
      • threat
        • 2.Rd5#
        • 2.Qh8#
      • 1...d5
        • 2.Rxd5#
      • 1...c6
        • 2.Qh8#
      • 1...Rxc5!
    • 1.Re6?
      • threat
        • 2.Rxe4#
      • 1...e3
        • 2.Re4#
      • 1...d5!
    • 1.Qe2?
      • threat
        • 2.Qc4#
      • 1...Kxc5
        • 2.Be3#
      • 1...Kd5
        • 2.Qc4#
      • 1...Rxc5
        • 2.Qxe4#
      • 1...d5
        • 2.Qe3#
      • 1...Rc1!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Rf5#
      • 1...Kxc5
        • 2.Be3#
      • 1...Kd5
        • 2.Rf5#
      • 1...Rxc5
        • 2.Rxd6#
      • 1...d5
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(f);N_GUARD,XP(F)::QAB1(G)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(c);S_FLIGHT::B(B)
      • Refutation
        • K(c);S_FLIGHT,XB(B)
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);::R1(H),XP(f)
        • P(g);::QAB(G)
      • Refutation
        • R(e);XP(F)
    • Try
      • R(H);
      • Threat
        • R1(H),XP(d)
      • Vars
        • P(d);::R1(H)
      • Refutation
        • P(f);
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(c);S_FLIGHT,XP(F)::B(B)
        • K(c);P-FLIGHT::QAB1(G)
        • R(e);SBLOCK,XP(F)::QAR1(G),XP(d)
        • P(f);SBLOCK::QAB1(G)
      • Refutation
        • R(a);
  • Actual
    • Q(G);
    • Threat
      • QAB(G)+R(H)
    • Vars
      • K(c);S_FLIGHT,XP(F)::B(B)
      • K(c);P-FLIGHT::R(H)
      • R(e);SBLOCK,XP(F)::QAB(G)+R(H),DCHECK,XP(f)
      • P(f);OGATE,SBLOCK::QAB(G)+R(H)
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