MESON Chess Problem Database

Problem Display
PID: 66778 (K1N1Q1B1/5r2/p4r2/2nk1P2/R2N1n2/8/7B/1bR5 w - - 0 1)

Einat, Paz

1st Place, Match: France - Israel, 1983-1985

K1N1Q1B1/5r2/p4r2/2nk1P2/R2N1n2/8/7B/1bR5

#2

9 + 7

721 Variantim 1990

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Qe5#
    • 1...Sg2
      • 2.Qe5#
    • 1...Sh3
      • 2.Qe5#
    • 1...Sh5
      • 2.Qe5#
    • 1...Sfe6
      • 2.Qc6#
  • Tries
    • 1.Sb6+?
      • 1...Kd6
        • 2.Bxf4#
      • 1...Rxb6!
    • 1.Qc6+?
      • 1...Ke5
        • 2.Rxc5#
      • 1...Rxc6!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Rd4#
      • 1...Sxa4
        • 2.Qe5#
      • 1...Se2
        • 2.Se7#
      • 1...Sfe6
        • 2.Sb6#
      • 1...Sb3
        • 2.Qe5#
      • 1...Sce6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(b);::QAR1(H)
    • S(b);N_SPINR(g),S_CUTR(f)::QAB1(H)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(d);N_SPINR(g),P-FLIGHT,P_SPINS(b)::B(B),XS(b)
      • Refutation
        • R(f);XS(G)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);N_SPINR(g),P-FLIGHT,P_SPINS(b)::R(A),XS(c)
      • Refutation
        • R(f);XQ(H)
  • Actual
    • S(D);
    • Threat
      • R1(C)
    • Vars
      • S(c);XR(C)::QAR1(H)
      • S(b);::S(G)
      • S(b);N_SPINR(g),S_CUTR(f)::S(G)
      • S(c);::QAR1(H)
      • S(c);N_SPINR(g),S_CUTR(f)::QAB1(H)
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