MESON Chess Problem Database

Problem Display
PID: 241871 (8/3K2P1/4p3/3kbR2/1Q6/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1931

8/3K2P1/4p3/3kbR2/1Q6/8/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...exf5
      • 2.g8Q#
      • 2.g8B#
  • Tries
    • 1.Rf4?
      • threat
        • 2.Qa5#
        • 2.Qc4#
        • 2.Qb5#
      • 1...Bxg7
        • 2.Qa5#
        • 2.Qd6#
        • 2.Qb5#
      • 1...Ba1
        • 2.Qa5#
        • 2.Qd6#
        • 2.Qb5#
      • 1...Bb2
        • 2.Qa5#
        • 2.Qd6#
        • 2.Qb5#
      • 1...Bc3
        • 2.Qd6#
        • 2.Qb5#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bd6
        • 2.Qxd6#
        • 2.Qd4#
      • 1...Bf6
        • 2.Qa5#
        • 2.Qd6#
        • 2.Qb5#
      • 1...Bc7
        • 2.Qd4#
        • 2.Qb5#
      • 1...Bb8
        • 2.Qa5#
        • 2.Qd4#
        • 2.Qb5#
      • 1...Bxf4!
  • Keys
    • 1.g8S!
      • 1...exf5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);N_SPINB(b),XR(B)::P=Q
  • Tries
    • Try
      • R(B);N_PINB(b)
      • Threat
        • DUALS(3)
      • Vars
        • B(b);N_GUARD::QAR1(A),XB(b)
      • Refutation
        • B(b);XR(B)
  • Actual
    • P(D);
    • Vars
      • P(c);N_SPINB(b),XR(B)::S(D)
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