MESON Chess Problem Database

Problem Display
PID: 251278 (4B2n/6p1/4P1Pb/3PNk2/7B/4pP2/4K2Q/8 w - - 0 1)

Wiesel, Josef

1st Comm., Jerusalem Post, 1957

4B2n/6p1/4P1Pb/3PNk2/7B/4pP2/4K2Q/8

#2

9 + 5

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sxg6
      • 2.Bxg6#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qe5#
        • 2.Qh3#
      • 1...Sxg6
        • 2.Qh3#
      • 1...Bg5
        • 2.Qe5#
      • 1...Bf4
        • 2.Qxf4#
        • 2.Qh3#
      • 1...Sf7!
    • 1.Sc4?
      • threat
        • 2.Sd6#
        • 2.Qe5#
      • 1...Sxg6
        • 2.Sd6#
      • 1...Bg5
        • 2.Qe5#
      • 1...Bf4
        • 2.Qh3#
      • 1...Sf7!
    • 1.Qh3+?
      • 1...Kf4
        • 2.Sd3#
      • 1...Kxe5!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sd4#
        • 2.Se7#
        • 2.Qe5#
      • 1...Sxg6
        • 2.Sd4#
      • 1...Bg5
        • 2.Qe5#
      • 1...Sf7
        • 2.Se7#
      • 1...Bf4
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(e);OGATE,XP(H)::B(I),XS(e)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);XP(H)::QAB(B)
        • B(c);::QAR1(B)
      • Refutation
        • S(e);
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);XP(H)::S(F)
        • B(c);::QAR1(B)
        • B(c);SBLOCK::QAB(B)
      • Refutation
        • S(e);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::S(F)
      • Refutation
        • K(b);P-FLIGHT,XS(F)
  • Actual
    • S(F);
    • Threat
      • DUALS(3)
    • Vars
      • S(e);XP(H)::S(F)
      • B(c);::QAR1(B)
      • S(e);::S(F)
      • B(c);SBLOCK::QAB(B)
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