MESON Chess Problem Database

Problem Display
PID: 242105 (3Q4/4pk1N/6nK/2N5/8/8/8/8 w - - 0 1)

Zilahi, Zoltan

Magyar Sakkvilag, 1931

3Q4/4pk1N/6nK/2N5/8/8/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.Qf8#
    • 1...Sh4
      • 2.Qf8#
    • 1...Se5
      • 2.Qf8#
    • 1...Sf8
      • 2.Qxf8#
    • 1...Sh8
      • 2.Qf8#
    • 1...e5
      • 2.Sg5#
    • 1...e6
      • 2.Sg5#
  • Tries
    • 1.Qd5+?
      • 1...e6
        • 2.Qxe6#
      • 1...Ke8!
  • Keys
    • 1.Qc8!
      • 1...Sf8
        • 2.Qxf8#
      • 1...e5
        • 2.Qe6#
      • 1...e6
        • 2.Qxe6#
      • 1...Sf4
        • 2.Qf8#
      • 1...Sh4
        • 2.Qf8#
      • 1...Se5
        • 2.Qf8#
      • 1...Sh8
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(D)
    • S(a);N_GUARD::QAR1(D),XS(a)
    • P(b);::S(C)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • P(b);P_SPINP(b)::QAB1(D),XP(b)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • S(a);N_GUARD::QAR1(D),XS(a)
      • P(b);::QAB1(D)
      • P(b);::QAB1(D),XP(b)
      • S(a);N_GUARD::QAR1(D)
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