MESON Chess Problem Database

Problem Display
PID: 225892 (5K2/1p6/4pp2/2n4B/kB5r/1n1N4/6Q1/q7 w - - 0 1)

Kogel, Philip

Praca, 1950

5K2/1p6/4pp2/2n4B/kB5r/1n1N4/6Q1/q7

#2

5 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Qxb7!
      • threat
        • 2.Qc6#
      • 1...Sd7+
        • 2.Qxd7#
      • 1...Rxb4
        • 2.Qxb4#
      • 1...Sxd3
        • 2.Be8#
      • 1...Sxb7
        • 2.Be8#
      • 1...Sc1
        • 2.Sxc5#
      • 1...Sd2
        • 2.Sxc5#
      • 1...Sd4
        • 2.Sxc5#
      • 1...Sa5
        • 2.Sxc5#
      • 1...Qh1
        • 2.Sb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(A);XP(h)
    • Threat
      • QAB(A)
    • Vars
      • S(e);CHECK,N_GUARD::QAB(A),XS(e)
      • R(d);OGATE,XB(C)::QAR1(A),XR(d)
      • S(e);N_GUARD,XS(B)::B(D)
      • S(e);N_GUARD,XQ(A)::B(D)
      • S(b);N_GUARD::S(B),XS(e)
      • Q(a);N_GUARD::S(B)
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