MESON Chess Problem Database

Problem Display
PID: 86155 (8/8/4B3/4p2K/5k2/1Q6/3P2n1/8 w - - 0 1)

Vladimirov, Evgeny

Problemas, 1977

8/8/4B3/4p2K/5k2/1Q6/3P2n1/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sh4
      • 2.Qe3#
  • Tries
    • 1.Qd3?
      • 1...Se3
        • 2.Qxe3#
      • 1...Se1
        • 2.Qe3#
      • 1...Sh4
        • 2.Qe3#
      • 1...e4!
  • Keys
    • 1.Bg4!
      • threat
        • 2.Qf3#
      • 1...Ke4
        • 2.Qc4#
      • 1...Se3
        • 2.Qxe3#
      • 1...e4
        • 2.Qb8#
      • 1...Se1
        • 2.Qe3#
      • 1...Sh4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(B)
    • S(a);N_GUARD::QAB1(B),XS(a)
  • Tries
    • Try
      • Q(B);
      • Vars
        • S(a);N_GUARD::QAB1(B),XS(a)
        • S(a);N_GUARD::QAB1(B)
      • Refutation
        • P(c);
  • Actual
    • B(D);
    • Threat
      • QAR1(B)
    • Vars
      • K(b);P-FLIGHT::QAR2(B)
      • S(a);N_GUARD::QAB1(B),XS(a)
      • P(c);OGATEB,SBLOCK::QAB(B)
      • S(a);N_GUARD::QAB1(B)
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