MESON Chess Problem Database

Problem Display
PID: 229136 (8/3bP3/1KNkr1NQ/8/3P4/1B4b1/8/8 w - - 0 1)

Goldschmidt, Ervin

Ujsag, 1926

8/3bP3/1KNkr1NQ/8/3P4/1B4b1/8/8

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sh8?
      • threat
        • 2.Sf7#
      • 1...Bxc6
        • 2.Qxe6#
      • 1...Be8
        • 2.Qxe6#
      • 1...Bc8!
    • 1.Qf4+?
      • 1...Re5
        • 2.dxe5#
      • 1...Bxf4!
  • Keys
    • 1.Sge5!
      • threat
        • 2.Sf7#
      • 1...Bxe5
        • 2.dxe5#
      • 1...Bxc6
        • 2.Qxe6#
      • 1...Bc8
        • 2.e8S#
      • 1...Be8
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);P_PINR(c)
      • Threat
        • S(E)
      • Vars
        • B(d);N_GUARD,XS(D)::QAR1(F),XR(c)
        • B(d);N_GUARD::QAR1(F),XR(c)
      • Refutation
        • B(d);
    • Try
      • Q(F);CHECK
      • Vars
        • R(c);OGATE,P_SPINR(c)::P(B),XR(c)
      • Refutation
        • B(a);XQ(F)
  • Actual
    • S(E);P_PINR(c)
    • Threat
      • S(E)
    • Vars
      • B(a);OGATE,XS(E)::P(B),XB(a)
      • B(d);N_GUARD,XS(D)::QAR1(F),XR(c)
      • B(d);N_GUARD::P=S
      • B(d);N_GUARD::QAR1(F),XR(c)
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