MESON Chess Problem Database

Problem Display
PID: 116159 (8/Q3p3/2pN3K/4k3/1BP1NnB1/4p1Pp/3b4/3Rq3 w - - 0 1)

Goldschmidt, Josef

Al Hamishmar, 1951

8/Q3p3/2pN3K/4k3/1BP1NnB1/4p1Pp/3b4/3Rq3

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qd4#
    • 1...Bxb4
      • 2.Qd4#
    • 1...Se2
      • 2.Qc5#
    • 1...Sg2
      • 2.Qc5#
    • 1...Sh5
      • 2.Qc5#
    • 1...Sg6
      • 2.Qc5#
    • 1...e6
      • 2.Qg7#
  • Tries
    • 1.Qxe7+?
      • 1...Se6
        • 2.Qf6#
      • 1...Kd4!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sd7#
      • 1...Kd4
        • 2.Qa1#
      • 1...Kxd6
        • 2.Qb8#
      • 1...Kf6
        • 2.Sd7#
      • 1...exd6
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • B(b);::QAB1(I)
    • B(b);XB(C)::QAB1(I)
    • S(e);N_GUARD::QAR2(I)
    • P(h);OGATE::QAB(I)
  • Tries
    • Try
      • Q(I);CHECK,XP(h)
      • Vars
        • S(e);P_SPINS(e)::QAB1(I)
      • Refutation
        • K(f);P_SPINB(b),S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(f);P_SPINB(b),S_FLIGHT::QAB(I)
      • K(f);OGATEB,P_SPINB(b),S_FLIGHT,XS(G)::QAB(I)
      • K(f);S_FLIGHT::S(E)
      • P(h);OGATE,SBLOCK,XS(G)::QAB(I)
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