MESON Chess Problem Database

Problem Display
PID: 169242 (8/8/8/5Q1p/7k/8/5P1b/4B2K w - - 0 1)

Belchikov, Nikolai Ivanovich

12/21 Place, SuperProblem 181. TT, 2017

8/8/8/5Q1p/7k/8/5P1b/4B2K

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg3
      • 2.fxg3#
    • 1...Be5
      • 2.f4#
    • 1...Bd6
      • 2.f4#
    • 1...Bc7
      • 2.f4#
    • 1...Bb8
      • 2.f4#
  • Tries
    • 1.Qg5+?
      • 1...Kh3
        • 2.Qxh5#
      • 1...Kxg5!
  • Keys
    • 1.Kg2!
      • 1...Bg1
        • 2.Qf4#
      • 1...Bg3
        • 2.fxg3#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Be5
        • 2.f4#
      • 1...Bd6
        • 2.f4#
      • 1...Bc7
        • 2.f4#
      • 1...Bb8
        • 2.f4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::P(C),XB(a)
    • B(a);N_GUARD::B(A)+P(C)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(D),XP(c)
      • Refutation
        • K(b);S_FLIGHT,XQ(D)
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • B(a);N_GUARD::QAR2(D)
      • B(a);OGATE::P(C),XB(a)
      • B(a);N_GUARD::QAR2(D),XB(a)
      • B(a);N_GUARD::B(A)+P(C)
HTML5 logo

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).