MESON Chess Problem Database

Problem Display
PID: 86813 (2K5/8/2p5/k2N4/8/3Q4/2N5/8 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Bron MT, 1991

2K5/8/2p5/k2N4/8/3Q4/2N5/8

#2

4 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sa3?
      • 1...cxd5
        • 2.Qb5#
      • 1...c5
        • 2.Qb5#
      • 1...Ka4!
    • 1.Sc3?
      • 1...c5
        • 2.Qb5#
      • 1...Kb6!
    • 1.Sc7?
      • threat
        • 2.Qa6#
      • 1...Ka4
        • 2.Qa3#
      • 1...Kb6!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qa3#
      • 1...Ka4
        • 2.Qa6#
      • 1...cxd5
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • P(b);N_GUARD,XS(C)::QAR1(B)
        • P(b);N_GUARD::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(b);N_GUARD::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAR2(B)
    • Vars
      • K(a);P-FLIGHT::QAR2(B)
      • P(b);N_GUARD,XS(C)::QAR1(B)
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