MESON Chess Problem Database

Problem Display
PID: 241783 (8/8/8/5K2/8/3p1kp1/2pQ4/2N5 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1928

8/8/8/5K2/8/3p1kp1/2pQ4/2N5

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...g2
      • 2.Qf4#
  • Tries
    • 1.Ke5?
      • 1...g2
        • 2.Qf4#
      • 1...Kg4!
    • 1.Kg5?
      • 1...g2
        • 2.Qf4#
      • 1...Ke4!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Se1#
        • 2.Se5#
      • 1...g2
        • 2.Qf2#
      • 1...c1Q
        • 2.Se5#
      • 1...c1R
        • 2.Se5#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK::QAR1(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(d);SBLOCK::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(d);SBLOCK::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(A);XP(b)
    • Threat
      • DUALS(2)
    • Vars
      • P(d);N_GUARD::QAR1(B)
      • P(a);::S(A)
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