MESON Chess Problem Database

Problem Display
PID: 99423 (Kn4b1/3Q3p/5N1B/2PP3P/2PkB3/1P1NR2P/3Pp2r/6b1 w - - 0 1)

Szoghy, Jozsef

Apro-75 JT, 1982

Kn4b1/3Q3p/5N1B/2PP3P/2PkB3/1P1NR2P/3Pp2r/6b1

#2

14 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Bxe3#
    • 1...Bxd5+
      • 2.Qxd5#
  • Tries
    • 1.Qa7?
      • threat
        • 2.Qa1#
        • 2.c6#
      • 1...Bxd5+
        • 2.c6#
      • 1...e1Q
        • 2.c6#
      • 1...e1R
        • 2.c6#
      • 1...Sc6
        • 2.Qa1#
      • 1...Sd7
        • 2.Qa1#
      • 1...Sa6!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Bh1#
        • 2.Bg2#
        • 2.Bf3#
        • 2.Bf5#
        • 2.Bg6#
        • 2.Bxh7#
      • 1...Bxd5+
        • 2.Bxd5#
      • 1...Bxe3
        • 2.Bxe3#
      • 1...Rh1
        • 2.Bxh1#
        • 2.Bg2#
        • 2.Bf3#
        • 2.Bf5#
        • 2.Bg6#
        • 2.Bxh7#
      • 1...Rf2
        • 2.Bf3#
      • 1...Rg2
        • 2.Bxg2#
      • 1...Be6
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE,XR(D)::B(L),XB(a)
    • B(g);CHECK,OGATE,P_SPINB(g),XP(I)::QAR1(M),XB(g)
  • Tries
    • Try
      • Q(M);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);CHECK,XP(I)::QAB(M)+P(H)
        • P(b);::QAB(M)+P(H)
        • S(f);::QAB(M)
      • Refutation
        • S(f);
  • Actual
    • Q(M);
    • Threat
      • DUALS(6)
    • Vars
      • B(g);CHECK,OGATE,XP(I)::QAR(M)+B(G),XB(g)
      • B(a);OGATE,XR(D)::B(L),XB(a)
      • R(c);::QAR(M)+B(G)
      • R(c);::QAR(M)+B(G),XR(c)
      • B(g);::QAR(M)+B(G)
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