Problem Display
PID: 47998 (2b1B1Q1/4p1B1/1K1k4/8/8/8/8/8 w - - 0 1)

Wirtanen, Erkki Aukusti

Var Varld, 1944

2b1B1Q1/4p1B1/1K1k4/8/8/8/8/8

#2

4 + 3


4883 Still More Fun with Chess Miniatures 2002
145 StrateGems 2008
3713 Snap 2009
5454 Near Snap 2017

SOLUTION


  • SOUND
  • Sets
    • 1...e5
      • 2.Bf8#
  • Keys
    • 1.Bc6!
      • threat
        • 2.Qd5#
      • 1...e5
        • 2.Bf8#
      • 1...e6
        • 2.Qf8#
      • 1...Be6
        • 2.Qb8#

Anticipated by 158188(1936)

This anticipates 93276(1961)

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB,SBLOCK::B(B)
  • Actual
    • B(C);
    • Threat
      • QAR1(D)
    • Vars
      • P(b);OGATEB,SBLOCK::B(B)
      • P(b);OGATEB,SBLOCK::QAB(D)
      • B(c);OGATE,SBLOCK::QAB(D)


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).