MESON Chess Problem Database

Problem Display
PID: 6158 (4k3/2Kp2Q1/2nP3n/8/8/8/8/8 w - - 0 1)

Zilahi, Zoltan

Magyar Sakkvilag, 1927

4k3/2Kp2Q1/2nP3n/8/8/8/8/8

#2

3 + 4

273 Mat Plus 1995
2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Qe7#
    • 1...Sd4
      • 2.Qe7#
    • 1...Sa5
      • 2.Qe7#
    • 1...Se5
      • 2.Qe7#
    • 1...Sa7
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
    • 1...Sb8
      • 2.Qe7#
    • 1...Sd8
      • 2.Qe7#
    • 1...Sg4
      • 2.Qg8#
    • 1...Sf5
      • 2.Qg8#
    • 1...Sf7
      • 2.Qg8#
    • 1...Sg8
      • 2.Qxg8#
  • Tries
    • 1.Kc8?
      • 1...Se7+
        • 2.Qxe7#
      • 1...Sb4
        • 2.Qe7#
      • 1...Sd4
        • 2.Qe7#
      • 1...Sa5
        • 2.Qe7#
      • 1...Se5
        • 2.Qe7#
      • 1...Sb8
        • 2.Qe7#
      • 1...Sd8
        • 2.Qe7#
      • 1...Sg4
        • 2.Qg8#
      • 1...Sf5
        • 2.Qg8#
      • 1...Sf7
        • 2.Qg8#
      • 1...Sg8
        • 2.Qxg8#
      • 1...Sa7+!
    • 1.Qh8+?
      • 1...Sg8
        • 2.Qxg8#
      • 1...Kf7!
    • 1.Qg6+?
      • 1...Sf7
        • 2.Qg8#
      • 1...Kf8!
    • 1.Qh7?
      • 1...Sb4
        • 2.Qe7#
      • 1...Sd4
        • 2.Qe7#
      • 1...Sa5
        • 2.Qe7#
      • 1...Se5
        • 2.Qe7#
      • 1...Sa7
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...Sb8
        • 2.Qe7#
      • 1...Sd8
        • 2.Qe7#
      • 1...Sg4
        • 2.Qg8#
      • 1...Sf5
        • 2.Qg8#
      • 1...Sf7
        • 2.Qg8#
      • 1...Sg8
        • 2.Qxg8#
      • 1...Kf8!
  • Keys
    • 1.Kb6!
      • 1...Kd8
        • 2.Qf8#
      • 1...Sb4
        • 2.Qe7#
      • 1...Sd4
        • 2.Qe7#
      • 1...Sa5
        • 2.Qe7#
      • 1...Se5
        • 2.Qe7#
      • 1...Sa7
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...Sb8
        • 2.Qe7#
      • 1...Sd8
        • 2.Qe7#
      • 1...Sg4
        • 2.Qg8#
      • 1...Sf5
        • 2.Qg8#
      • 1...Sf7
        • 2.Qg8#
      • 1...Sg8
        • 2.Qxg8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(C)
    • S(a);N_GUARD::QAR1(C),XS(a)
    • S(b);N_GUARD::QAR2(C)
    • S(b);N_GUARD::QAR2(C),XS(b)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • S(a);CHECK,N_GUARD::QAR1(C),XS(a)
        • S(a);N_GUARD::QAR1(C)
        • S(b);N_GUARD::QAR2(C)
        • S(b);N_GUARD::QAR2(C),XS(b)
      • Refutation
        • S(a);CHECK
    • Try
      • Q(C);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR2(C),XS(b)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR2(C)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • S(a);N_GUARD::QAR1(C)
        • S(a);N_GUARD::QAR1(C),XS(a)
        • S(b);N_GUARD::QAR2(C)
        • S(b);N_GUARD::QAR2(C),XS(b)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • K(d);P-FLIGHT::QAR2(C)
      • S(a);N_GUARD::QAR1(C)
      • S(a);N_GUARD::QAR1(C),XS(a)
      • S(b);N_GUARD::QAR2(C)
      • S(b);N_GUARD::QAR2(C),XS(b)
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