MESON Chess Problem Database

Problem Display
PID: 264138 (2b4K/8/1B4Q1/8/8/5B1p/2N2n1p/r4k1r w - - 0 1)

Beszczynski, Jan

Tijdschrift vd KNSB, 1957

2b4K/8/1B4Q1/8/8/5B1p/2N2n1p/r4k1r

#2

5 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sg4
      • 2.Qd3#
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qxf2#
      • 1...Sd1
        • 2.Qe1#
      • 1...Sd3
        • 2.Se3#
      • 1...Se4
        • 2.Se3#
      • 1...Sg4
        • 2.Qxh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::QAB(D)
    • S(d);N_GUARD::QAB(D),XS(d)
  • Actual
    • Q(D);
    • Threat
      • QAR1(D),XS(d)
    • Vars
      • S(d);OGATE::QAR1(D)
      • S(d);::S(A)
      • S(d);N_GUARD,S_CUTB(g)::QAB(D),XP(f)
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