MESON Chess Problem Database

Problem Display
PID: 28351 (n2K4/2p2p2/2kN4/5R2/P7/3RB3/B7/1n6 w - - 0 1)

Zalewski, Mieczyzlaw

1st Prize, Szachy, 1979

n2K4/2p2p2/2kN4/5R2/P7/3RB3/B7/1n6

#2

7 + 5

3242 BCPS Rapid Solving (Cheltenham) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Rc5#
    • 1...cxd6
      • 2.Bd5#
  • Tries
    • 1.Ke7?
      • threat
        • 2.Bd5#
      • 1...Sc3
        • 2.Rxc3#
      • 1...Sb6
        • 2.Rc5#
      • 1...cxd6!
    • 1.Sb7?
      • threat
        • 2.Sa5#
        • 2.Bd5#
      • 1...Sc3
        • 2.Sa5#
      • 1...Sb6
        • 2.Sa5#
      • 1...Kxb7!
    • 1.Be6?
      • threat
        • 2.Bd7#
      • 1...cxd6
        • 2.Bd5#
      • 1...Sb6
        • 2.Rc5#
      • 1...fxe6!
    • 1.Ba7?
      • threat
        • 2.Rc5#
      • 1...cxd6
        • 2.Bd5#
      • 1...Sb6!
    • 1.Rc3+?
      • 1...Kxd6
        • 2.Bf4#
      • 1...Sxc3!
    • 1.Rf6?
      • threat
        • 2.Bd5#
      • 1...Sc3
        • 2.Rxc3#
      • 1...Sb6!
  • Keys
    • 1.Bxf7!
      • threat
        • 2.Be8#
      • 1...cxd6
        • 2.Bd5#
      • 1...Sb6
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(e);SBLOCK::R1(E)
    • P(c);SBLOCK,XS(F)::B(A)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Threat
        • B(A)
      • Vars
        • S(a);N_GUARD::R(B),XS(a)
        • S(e);SBLOCK::R1(E)
      • Refutation
        • P(c);XS(F)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::S(F)
        • S(e);::S(F)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • P(c);SBLOCK,XS(F)::B(A)
        • S(e);SBLOCK::R1(E)
      • Refutation
        • P(d);XB(A)
    • Try
      • B(C);
      • Threat
        • R1(E)
      • Vars
        • P(c);SBLOCK,XS(F)::B(A)
      • Refutation
        • S(e);
    • Try
      • R(B);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(F)::B(C)
      • Refutation
        • S(a);XR(B)
    • Try
      • R(E);
      • Threat
        • B(A)
      • Vars
        • S(a);N_GUARD::R(B),XS(a)
      • Refutation
        • S(e);
  • Actual
    • B(A);XP(d)
    • Threat
      • B(A)
    • Vars
      • P(c);SBLOCK,XS(F)::B(A)
      • S(e);SBLOCK::R1(E)
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