MESON Chess Problem Database

Problem Display
PID: 171394 (1K6/8/pk1p4/1P6/1QP5/8/8/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Temp-64 (Nikolaev), 1995

1K6/8/pk1p4/1P6/1QP5/8/8/8

#2

4 + 3

6490 yacpdb 2018
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...axb5
      • 2.Qxb5#
    • 1...a5
      • 2.Qxd6#
    • 1...d5
      • 2.c5#
  • Keys
    • 1.bxa6+!
      • 1...Kxa6
        • 2.Qb5#
      • 1...Kc6
        • 2.Qb5#

Anticipated by 227897(1926)

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • P(a);OGATE,P_SPINP(a),XP(C)::QAR1(A),XP(a)
    • P(a);SBLOCK::QAR2(A),XP(c)
    • P(c);N_GUARD::P(B)
  • Actual
    • P(C);CHECK,XP(a)
    • Vars
      • K(b);P-FLIGHT,XP(C)::QAB1(A)
      • K(b);P-FLIGHT::QAB1(A)
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).