MESON Chess Problem Database

Problem Display
PID: 239695 (4N3/B1pp3Q/2R4P/R1N5/4Pk1p/1P5P/4Pp1p/1B3Kbr w - - 0 1)

Szoghy, Jozsef

Magyar Sakkelet, 1953

4N3/B1pp3Q/2R4P/R1N5/4Pk1p/1P5P/4Pp1p/1B3Kbr

#2

13 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sd3#
    • 1...Kg5
      • 2.Se6#
      • 2.Qf5#
  • Tries
    • 1.Se6+?
      • 1...Kg3
        • 2.Rc3#
      • 1...dxe6!
    • 1.Rf6+?
      • 1...Kg3
        • 2.Rf3#
      • 1...Ke5
        • 2.Sd3#
        • 2.Sxd7#
      • 1...Kg5
        • 2.Se6#
        • 2.Rf5#
        • 2.Qf5#
        • 2.Qg6#
      • 1...Ke3!
    • 1.Qf5+?
      • 1...Kg3
        • 2.Rg6#
        • 2.Qg4#
        • 2.Qf3#
      • 1...Ke3!
    • 1.Qg6?
      • threat
        • 2.Sd3#
      • 1...Ke5
        • 2.Sd3#
        • 2.Qf6#
      • 1...Ke3!
    • 1.Qf7+?
      • 1...Kg3
        • 2.Qf3#
      • 1...Ke5
        • 2.Sxd7#
        • 2.Qf6#
      • 1...Kg5
        • 2.Sxd7#
        • 2.Qf5#
      • 1...Ke3!
    • 1.Qg7?
      • 1...dxc6
        • 2.Se6#
      • 1...d5
        • 2.Se6#
      • 1...d6
        • 2.Se6#
      • 1...Ke3!
  • Keys
    • 1.Qxd7!
      • 1...Ke3
        • 2.Se6#
      • 1...Kg3
        • 2.Qg4#
      • 1...Ke5
        • 2.Se6#
      • 1...Kg5
        • 2.Sd3#
        • 2.Qg4#
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::R(G)+S(H),DCHECK
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(e);S_FLIGHT::R(I)
      • Refutation
        • P(h);XS(H)
    • Try
      • R(I);CHECK
      • Vars
        • K(e);OGATE,S_FLIGHT::R1(I)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(L);CHECK
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(L);
      • Threat
        • S(H)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(L);CHECK
      • Vars
        • K(e);OGATE,S_FLIGHT::QAR1(L)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(L);
      • Vars
        • P(h);N_GUARD,XR(I)::S(H)
        • P(h);N_GUARD::S(H)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • Q(L);XP(h)
    • Vars
      • K(e);S_FLIGHT::B(K)+S(H)
      • K(e);S_FLIGHT::QAR1(L)
      • K(e);S_FLIGHT::R(G)+S(H)
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