MESON Chess Problem Database

Problem Display
PID: 121060 (2Q5/B4p1K/8/3NN3/3pkP2/1B3p2/5n2/8 w - - 0 1)

Goldschmidt, Josef

Basha'ar, 1951

2Q5/B4p1K/8/3NN3/3pkP2/1B3p2/5n2/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sxf2#
        • 2.Sc5#
      • 1...Kxd3
        • 2.Qc2#
      • 1...Sd1
        • 2.Sc5#
      • 1...Sh1
        • 2.Sc5#
      • 1...Sh3
        • 2.Sc5#
      • 1...Sg4
        • 2.Sc5#
      • 1...Sxd3!
    • 1.Bd1?
      • threat
        • 2.Bxf3#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Sxd1!
    • 1.Qc2+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...d3!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sc5#
      • 1...Kd3
        • 2.Qc2#
      • 1...Kf5
        • 2.Sc5#
        • 2.S7f6#
      • 1...Sd3
        • 2.S7f6#
      • 1...d3
        • 2.S7f6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(D)::QAB1(G)
        • S(a);::S(D)
      • Refutation
        • S(a);XS(D)
    • Try
      • B(A);
      • Threat
        • B(A),XP(b)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(C)::QAB1(G)
      • Refutation
        • S(a);XB(A)
    • Try
      • Q(G);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(G),XS(a)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(d);S_FLIGHT::QAB1(G)
      • S(a);SBLOCK::S(D)
      • P(c);SBLOCK::S(D)
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