MESON Chess Problem Database

Problem Display
PID: 239685 (4KQ1B/2p5/n1n1pN2/5P1P/1P1k2P1/1B6/3NPP2/8 w - - 0 1)

Szoghy, Jozsef

Nepszava, 1941

4KQ1B/2p5/n1n1pN2/5P1P/1P1k2P1/1B6/3NPP2/8

#2

12 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Sfe4#
    • 1...Ke5
      • 2.Sd5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sab8
      • 2.Qc5#
  • Tries
    • 1.Sd7+?
      • 1...Se5
        • 2.Bxe5#
      • 1...e5!
    • 1.Qd6+?
      • 1...Kc3
        • 2.Sfe4#
      • 1...cxd6!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Qe3#
      • 1...Kc3
        • 2.Sd5#
      • 1...Ke5
        • 2.Sfe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(a);S_FLIGHT::B(L)+S(I),DCHECK
    • K(a);S_FLIGHT::B(L)+S(I)
    • S(b);N_GUARD::QAB1(K),XS(b)
    • S(b);N_GUARD::QAB1(K)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::B(L),XS(c)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • Q(K);CHECK
      • Vars
        • K(a);S_FLIGHT::B(L)+S(I),DCHECK
      • Refutation
        • P(e);XQ(K)
  • Actual
    • Q(K);
    • Threat
      • QAB1(K)
    • Vars
      • K(a);S_FLIGHT::B(L)+S(I),DCHECK
      • K(a);S_FLIGHT::B(L)+S(I)
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