MESON Chess Problem Database

Problem Display
PID: 8183 (8/3Q4/3B4/3k1N2/5p2/8/4NK2/8 w - - 0 1)

Pilchenko, Viacheslav Karlovich

The Problemist, 1995

8/3Q4/3B4/3k1N2/5p2/8/4NK2/8

#2

5 + 2

2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1?
      • 1...Kc4
        • 2.Qc6#
      • 1...Ke4
        • 2.Qe6#
      • 1...f3!
    • 1.Sxf4+?
      • 1...Ke4
        • 2.Qe6#
      • 1...Kc4!
    • 1.Se3+?
      • 1...Ke4
        • 2.Qf5#
        • 2.Qh7#
      • 1...fxe3+!
    • 1.Se7+?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kc4!
    • 1.Qa4?
      • threat
        • 2.Sxf4#
      • 1...f3
        • 2.Sf4#
      • 1...Ke6!
    • 1.Qb5+?
      • 1...Ke4
        • 2.Sc3#
      • 1...Ke6!
  • Keys
    • 1.Sfd4!
      • threat
        • 2.Qc6#
        • 2.Qe6#
      • 1...Kc4
        • 2.Qb5#
      • 1...Ke4
        • 2.Qf5#

This anticipates 156893(2014)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
      • Refutation
        • P(a);
    • Try
      • S(A);CHECK,XP(a)
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • P(a);CHECK,XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Threat
        • S(A),XP(a)
      • Vars
        • P(a);::S(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);S_FLIGHT::S(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);S_FLIGHT::QAB1(E)
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