MESON Chess Problem Database

Problem Display
PID: 239700 (4Q3/1K6/4N1pN/8/3Pkp2/2pr1rp1/B2p1p2/8 w - - 0 1)

Szoghy, Jozsef

Magyar Sakkelet, 1955

4Q3/1K6/4N1pN/8/3Pkp2/2pr1rp1/B2p1p2/8

#2

6 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rde3
      • 2.Qxg6#
    • 1...Rxd4
      • 2.Sc5#
    • 1...Rfe3
      • 2.Qc6#
  • Tries
    • 1.Sxf4+?
      • 1...Kxf4
        • 2.Qe5#
      • 1...Kxd4!
    • 1.Bd5+?
      • 1...Kxd5
        • 2.Qc6#
      • 1...Ke3!
    • 1.Qb5?
      • threat
        • 2.Qe5#
      • 1...Ke3
        • 2.Qe5#
      • 1...Rde3
        • 2.Bd5#
      • 1...Rfe3
        • 2.Bd5#
        • 2.Qc6#
        • 2.Qd5#
      • 1...Rxd4!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qe5#
      • 1...Ke3
        • 2.Qe5#
      • 1...Rxd4
        • 2.Qxd4#
      • 1...Rde3
        • 2.Sc5#
      • 1...Rfe3
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(d);SBLOCK::QAB(F),XP(i)
    • R(d);SBLOCK,XP(B)::QAR(F)+S(C),DCHECK
    • R(e);SBLOCK::QAB(F)
  • Tries
    • Try
      • S(C);CHECK,XP(h)
      • Vars
        • K(g);P-FLIGHT,XS(C)::QAB1(F)
      • Refutation
        • K(g);P-FLIGHT,XP(B)
    • Try
      • B(A);CHECK
      • Vars
        • K(g);S_FLIGHT,XB(A)::QAB1(F)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • K(g);P-FLIGHT::QAR2(F)
        • R(d);SBLOCK::B(A)
      • Refutation
        • R(d);XP(B)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • K(g);P-FLIGHT::QAR2(F)
      • R(d);OGATE,XP(B)::QAR1(F),XR(d)
      • R(d);SBLOCK::S(C)
      • R(e);SBLOCK::S(C)
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