MESON Chess Problem Database

Problem Display
PID: 153561 (K7/3B1PQ1/3P3B/3kpN2/N2p4/1Pp4p/2P4P/8 w - - 0 1)

Vilkauskas, Antanas

Match: Latvia - Leningrad - Lithuania, 1979

K7/3B1PQ1/3P3B/3kpN2/N2p4/1Pp4p/2P4P/8

#2

11 + 5

5459 Sachmatija 2002

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qxd4#
  • Tries
    • 1.Sb6+?
      • 1...Ke4
        • 2.Qg4#
      • 1...Kc5!
    • 1.Se7+?
      • 1...Ke4
        • 2.Bc6#
        • 2.Qg4#
      • 1...Kxd6!
    • 1.Bf4?
      • threat
        • 2.Qxe5#
      • 1...exf4
        • 2.Qxd4#
      • 1...e4
        • 2.Se7#
        • 2.Qxd4#
        • 2.Qe5#
      • 1...Ke4!
    • 1.Bc6+?
      • 1...Ke6
        • 2.Qg6#
      • 1...Kxc6!
    • 1.Qf6?
      • 1...Ke4
        • 2.Bc6#
      • 1...e4
        • 2.Se7#
        • 2.Qxd4#
        • 2.Qe6#
      • 1...d3!
    • 1.Qg3?
      • 1...d3
        • 2.Qxd3#
      • 1...e4
        • 2.Se7#
      • 1...Ke4!
    • 1.Qg4?
      • 1...d3
        • 2.Qc4#
      • 1...e4!
    • 1.Qg6?
      • threat
        • 2.Se7#
      • 1...Ke4
        • 2.Bc6#
      • 1...e4
        • 2.Qe6#
      • 1...d3!
    • 1.f8Q?
      • 1...Ke4
        • 2.Bc6#
      • 1...e4
        • 2.Qxd4#
        • 2.Qff7#
        • 2.Qfg8#
      • 1...d3!
    • 1.f8R?
      • 1...Ke4
        • 2.Bc6#
      • 1...e4
        • 2.Qxd4#
      • 1...d3!
  • Keys
    • 1.Qg1!
      • 1...Ke4
        • 2.Qh1#
      • 1...d3
        • 2.Sxc3#
      • 1...e4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATE::QAR1(J),XP(c)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR2(J)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • S(E);CHECK
      • Refutation
        • K(d);P-FLIGHT,XP(F)
    • Try
      • B(G);
      • Threat
        • QAR1(J),XP(e)
      • Vars
        • P(e);OGATE,XB(G)::QAR1(J),XP(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • B(H);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR2(J)
      • Refutation
        • K(d);S_FLIGHT,XB(H)
    • Try
      • Q(J);
      • Vars
        • K(d);S_FLIGHT::B(H)
      • Refutation
        • P(c);
    • Try
      • Q(J);
      • Vars
        • P(c);OGATEB::QAR2(J),XP(c)
        • P(e);SBLOCK::S(E)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • P(c);OGATE::QAB1(J)
      • Refutation
        • P(e);
    • Try
      • Q(J);
      • Threat
        • S(E)
      • Vars
        • K(d);S_FLIGHT::B(H)
        • P(e);::QAB1(J)
      • Refutation
        • P(c);
    • Try
      • P(I);
      • Vars
        • K(d);S_FLIGHT::B(H)
      • Refutation
        • P(c);
    • Try
      • P(I);
      • Vars
        • K(d);S_FLIGHT::B(H)
        • P(e);OGATE::QAR1(J),XP(c)
      • Refutation
        • P(c);
  • Actual
    • Q(J);
    • Vars
      • K(d);S_FLIGHT::QAB(J)
      • P(c);N_GUARD::S(D),XP(a)
      • P(e);N_GUARD::QAR1(J),XP(c)
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