MESON Chess Problem Database

Problem Display
PID: 99820 (8/4p2q/3BP2b/3pN3/1R1pkP2/2ppN1Qp/5K2/3b4 w - - 0 1)

Ersek, Tibor

Szoghy-70 JT, 1981

8/4p2q/3BP2b/3pN3/1R1pkP2/2ppN1Qp/5K2/3b4

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc2
      • 2.Qf3#
    • 1...Bb3
      • 2.Qf3#
    • 1...Bf3
      • 2.Qxf3#
    • 1...Ba4
      • 2.Qf3#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Rxd4#
      • 1...Bxf3
        • 2.Qxf3#
      • 1...Qh8
        • 2.Qg6#
      • 1...Bg7
        • 2.Sg5#
      • 1...Qg7!
    • 1.Qg2+?
      • 1...Kxf4
        • 2.Sxd3#
        • 2.Sg6#
      • 1...Bf3
        • 2.Qxf3#
      • 1...hxg2!
    • 1.Qg6+?
      • 1...Kxf4
        • 2.Sxd5#
        • 2.Sxd3#
        • 2.Rxd4#
      • 1...Qxg6!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sc5#
      • 1...exd6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::QAB1(C)
    • B(a);N_GUARD::QAB1(C),XB(a)
  • Tries
    • Try
      • S(F);
      • Threat
        • R1(D),XP(e)
      • Vars
        • B(a);OGATE,XS(F)::QAB1(C),XB(a)
        • Q(j);N_GUARD::QAB(C)
        • B(h);N_GUARD::S(F)
      • Refutation
        • Q(j);
    • Try
      • Q(C);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAB1(C),XB(a)
      • Refutation
        • P(d);XQ(C)
    • Try
      • Q(C);CHECK
      • Refutation
        • Q(j);XQ(C)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • P(i);N_GUARD,XB(G)::S(F)
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