MESON Chess Problem Database

Problem Display
PID: 87703 (KQ6/3p4/5p2/1pBk1n1R/1P3P2/2PN3R/1P3P2/3B4 w - - 0 1)

Oltean, Gligor

Buletin Problemistic, 2000

KQ6/3p4/5p2/1pBk1n1R/1P3P2/2PN3R/1P3P2/3B4

#2

12 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qb7#
    • 1...Ke6
      • 2.Qg8#
  • Tries
    • 1.Sc1?
      • 1...Kc4
        • 2.Bb3#
      • 1...Ke4
        • 2.Bf3#
      • 1...Kc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Qg8#
      • 1...d6!
    • 1.Bb3+?
      • 1...Kc6
        • 2.Qb6#
        • 2.Qb7#
        • 2.Qc8#
      • 1...Ke4!
    • 1.Bf3+?
      • 1...Ke6
        • 2.Qg8#
      • 1...Kc4!
    • 1.Qd6+?
      • 1...Ke4
        • 2.Bf3#
        • 2.f3#
      • 1...Kc4!
    • 1.Qg8+?
      • 1...Ke4
        • 2.Qg2#
      • 1...Kc6!
  • Keys
    • 1.Bd6!
      • 1...Kc4
        • 2.Qg8#
      • 1...Ke4
        • 2.Qb7#
      • 1...Kc6
        • 2.Bf3#
      • 1...Ke6
        • 2.Bb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINS(c),S_FLIGHT::QAB1(L)
    • K(b);N_SPINS(c),S_FLIGHT::QAB(L)
  • Tries
    • Try
      • S(E);
      • Vars
        • K(b);N_SPINS(c),S_FLIGHT::B(A)
        • K(b);N_SPINS(c),S_FLIGHT::QAB1(L)
        • K(b);N_SPINS(c),S_FLIGHT::QAB(L)
      • Refutation
        • P(e);
    • Try
      • B(A);CHECK
      • Refutation
        • K(b);N_SPINS(c),S_FLIGHT
    • Try
      • B(A);CHECK
      • Vars
        • K(b);N_SPINS(c),S_FLIGHT::QAB(L)
      • Refutation
        • K(b);N_SPINS(c),S_FLIGHT
    • Try
      • Q(L);CHECK
      • Refutation
        • K(b);N_SPINS(c),S_FLIGHT
    • Try
      • Q(L);CHECK
      • Vars
        • K(b);N_SPINS(c),S_FLIGHT::QAB(L)
      • Refutation
        • K(b);N_SPINS(c),S_FLIGHT
  • Actual
    • B(I);
    • Vars
      • K(b);N_SPINS(c),S_FLIGHT::QAB(L)
      • K(b);N_SPINS(c),S_FLIGHT::B(A)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).