MESON Chess Problem Database

Problem Display
PID: 240500 (8/4NB2/5n2/2N5/1bPk1B2/2p1p3/Q1K5/8 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Hlas l'udu, 1991

8/4NB2/5n2/2N5/1bPk1B2/2p1p3/Q1K5/8

#2

7 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qa7#
    • 1...Se4
      • 2.Sb3#
      • 2.Se6#
  • Tries
    • 1.Be5+?
      • 1...Kxc5
        • 2.Qa7#
      • 1...Kxe5!
    • 1.Bd6?
      • threat
        • 2.Sf5#
        • 2.Sc6#
      • 1...e2
        • 2.Sf5#
      • 1...Bxc5!
    • 1.Bd5?
      • threat
        • 2.Sb3#
        • 2.Se6#
      • 1...Kxc5
        • 2.Qa7#
      • 1...Bxc5
        • 2.Sf5#
        • 2.Sc6#
      • 1...Sxd5!
    • 1.Bg6?
      • threat
        • 2.Se6#
      • 1...Bxc5
        • 2.Sc6#
      • 1...Kxc5!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Sb3#
      • 1...Kxc5
        • 2.Qa7#
      • 1...Bxc5
        • 2.Sf5#
      • 1...Sd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(d);OGATEB,S_FLIGHT,XS(E)::QAB(A)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • K(d);S_FLIGHT,XB(D)
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::S(F)
      • Refutation
        • B(c);XS(E)
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • Refutation
        • S(e);XB(G)
    • Try
      • B(G);
      • Threat
        • S(E)
      • Vars
        • B(c);SBLOCK,XS(E)::S(F)
      • Refutation
        • K(d);S_FLIGHT,XS(E)
  • Actual
    • Q(A);
    • Threat
      • S(E)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • B(c);SBLOCK,XS(E)::S(F)
      • S(e);N_GUARD::QAR1(A),XS(e)
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