MESON Chess Problem Database

Problem Display
PID: 169239 (8/8/2Q5/B7/8/3Np3/2P5/3k2K1 w - - 0 1)

Stojnic, Dragan

12/21 Place, SuperProblem 181. TT, 2017

8/8/2Q5/B7/8/3Np3/2P5/3k2K1

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Kg2?
      • 1...Ke2
        • 2.Qf3#
      • 1...e2!
    • 1.Sb2+?
      • 1...Ke2
        • 2.Qg2#
      • 1...Kc1!
    • 1.Qb5?
      • 1...Ke2
        • 2.Qh5#
      • 1...e2
        • 2.Qb1#
      • 1...Kxc2!
    • 1.Qc3?
      • 1...e2
        • 2.Qd2#
      • 1...Ke2!
    • 1.Qc4?
      • 1...Ke2
        • 2.Qg4#
      • 1...e2!
    • 1.Qc5?
      • 1...Ke2
        • 2.Qh5#
      • 1...e2!
    • 1.Qh6?
      • 1...Ke2
        • 2.Qh5#
      • 1...e2
        • 2.Qc1#
        • 2.Qd2#
      • 1...Kxc2!
    • 1.Qc8?
      • 1...Ke2
        • 2.Qg4#
      • 1...e2!
  • Keys
    • 1.Qa4!
      • 1...Ke2
        • 2.Qg4#
      • 1...e2
        • 2.c4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • P(b);
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB(E)
        • P(b);SBLOCK::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT,XP(B)
    • Try
      • Q(E);
      • Vars
        • P(b);N_GUARD::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB(E)
      • Refutation
        • P(b);
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB(E)
      • Refutation
        • P(b);
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB(E)
      • Refutation
        • K(a);S_FLIGHT,XP(B)
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB(E)
      • Refutation
        • P(b);
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::QAB(E)
      • P(b);SBLOCK::QAB(E)+P(B)
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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).