MESON Chess Problem Database

Problem Display
PID: 250650 (k2n4/3N4/1P1Np3/n3P3/2pB4/5R1B/8/5Q1K w - - 0 1)

Zimmer, Eligiusz

Schweizerische Schachzeitung, 1998

k2n4/3N4/1P1Np3/n3P3/2pB4/5R1B/8/5Q1K

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Qa6#
  • Tries
    • 1.Ra3?
      • threat
        • 2.Rxa5#
      • 1...Sc6
        • 2.b7#
      • 1...Sb7!
    • 1.Rf8?
      • threat
        • 2.Rxd8#
      • 1...Sc6
        • 2.b7#
      • 1...Sb7!
    • 1.Qg2?
      • 1...Sb3
        • 2.Rf8#
      • 1...Sac6
        • 2.Ra3#
      • 1...Sab7
        • 2.Ra3#
      • 1...Sdc6
        • 2.Rf8#
      • 1...Sdb7
        • 2.Rf8#
      • 1...Sf7
        • 2.Ra3#
      • 1...c3!
    • 1.Qa1?
      • threat
        • 2.Qxa5#
      • 1...Sc6
        • 2.b7#
      • 1...Sb7!
  • Keys
    • 1.Bg2!
      • 1...Sb3
        • 2.Rf8#
      • 1...Sac6
        • 2.Ra3#
      • 1...Sab7
        • 2.Ra3#
      • 1...Sdc6
        • 2.Rf8#
      • 1...Sdb7
        • 2.Rf8#
      • 1...Sf7
        • 2.Ra3#
      • 1...c3
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATE::QAR2(A)
  • Tries
    • Try
      • R(C);P_PINS(b)
      • Threat
        • R(C),XS(b)
      • Vars
        • S(e);N_GUARD::P(G)
      • Refutation
        • S(e);
    • Try
      • R(C);P_PINS(e)
      • Threat
        • R(C),XS(e)
      • Vars
        • S(b);N_GUARD::P(G)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Vars
        • S(b);N_GUARD::QAB(A)+R(C)
        • S(b);S_CUTS(e),S_CUTS(e)::R(C)
        • S(e);S_CUTS(b),S_CUTS(b)::R(C)
        • S(e);N_GUARD::QAB(A)+R(C)
      • Refutation
        • P(a);
    • Try
      • Q(A);P_PINS(b)
      • Threat
        • QAR(A),XS(b)
      • Vars
        • S(e);N_GUARD::P(G)
      • Refutation
        • S(e);
  • Actual
    • B(D);
    • Vars
      • S(b);N_GUARD::B(D)+R(C)
      • S(b);S_CUTS(e),S_CUTS(e)::R(C)
      • S(e);S_CUTS(b),S_CUTS(b)::R(C)
      • S(e);N_GUARD::B(D)+R(C)
      • P(a);OGATE::QAR2(A)
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