MESON Chess Problem Database

Problem Display
PID: 242104 (3Q4/8/4p3/3Pk3/6P1/4PK2/8/8 w - - 0 1)

Zilahi, Zoltan

Magyar Sakkvilag, 1931

3Q4/8/4p3/3Pk3/6P1/4PK2/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...exd5
      • 2.Qe7#
  • Tries
    • 1.Ke2?
      • 1...exd5
        • 2.Qe7#
      • 1...Ke4!
    • 1.Kf2?
      • 1...exd5
        • 2.Qe7#
      • 1...Ke4!
    • 1.Kg2?
      • 1...exd5
        • 2.Qe7#
      • 1...Ke4!
    • 1.Kg3?
      • 1...exd5
        • 2.Qe7#
      • 1...Ke4!
    • 1.Qd7?
      • threat
        • 2.Qxe6#
      • 1...exd5
        • 2.Qe7#
      • 1...Kf6!
    • 1.Qf8?
      • 1...exd5
        • 2.Qe7#
      • 1...Kxd5!
  • Keys
    • 1.g5!
      • 1...Kf5
        • 2.Qf6#
      • 1...exd5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB,SBLOCK,XP(D)::QAR2(E)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(b);OGATEB,SBLOCK,XP(D)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(b);OGATEB,SBLOCK,XP(D)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(b);OGATEB,SBLOCK,XP(D)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(b);OGATEB,SBLOCK,XP(D)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XP(b)
      • Vars
        • P(b);OGATEB,SBLOCK,XP(D)::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • P(b);OGATEB,SBLOCK,XP(D)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
  • Actual
    • P(C);
    • Vars
      • K(a);P-FLIGHT::QAR1(E)
      • P(b);SBLOCK,XP(D)::QAB1(E)
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