MESON Chess Problem Database

Problem Display
PID: 61853 (8/8/3p1K2/1Q1R4/3N4/3P2k1/5N2/R6B w - - 0 1)

Poisson, Christian

3rd Prize, Israel Ring Ty., 1990

8/8/3p1K2/1Q1R4/3N4/3P2k1/5N2/R6B

#2

8 + 2

721 Variantim 1992

SOLUTION

  • SOUND
  • Tries
    • 1.Se2+?
      • 1...Kh2
        • 2.Rh5#
      • 1...Kh4
        • 2.Ra4#
        • 2.Rd4#
        • 2.Rh5#
        • 2.Qa4#
        • 2.Qc4#
        • 2.Qb4#
      • 1...Kxf2!
    • 1.Sf5+?
      • 1...Kxf2
        • 2.Qb2#
      • 1...Kf4
        • 2.Ra4#
        • 2.Rd4#
        • 2.Qa4#
        • 2.Qc4#
        • 2.Qb4#
      • 1...Kh2!
    • 1.Rxd6?
      • 1...Kh2
        • 2.Qe5#
      • 1...Kf4
        • 2.Qe5#
        • 2.Qg5#
      • 1...Kh4
        • 2.Qg5#
      • 1...Kxf2!
    • 1.Qe8?
      • 1...Kxf2
        • 2.Qe1#
      • 1...Kf4
        • 2.Se2#
      • 1...Kh4
        • 2.Sf5#
      • 1...Kh2!
  • Keys
    • 1.Qb4!
      • 1...Kxf2
        • 2.Qe1#
      • 1...Kh2
        • 2.Qxd6#
      • 1...Kf4
        • 2.Sf5#
      • 1...Kh4
        • 2.Se2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(a);S_FLIGHT::R(G)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • S(E);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAR(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(G);XP(b)
      • Vars
        • K(a);S_FLIGHT::QAB(F)
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
        • K(a);S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(F)
      • K(a);S_FLIGHT::QAB(F),XP(b)
      • K(a);S_FLIGHT::QAR(F)+S(E)
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