MESON Chess Problem Database

Problem Display
PID: 227540 (1B4K1/7n/3RNp2/4k3/7P/8/3P1N2/1b6 w - - 0 1)

Jenssen, August

Prize, Schackvarlden, 1926

1B4K1/7n/3RNp2/4k3/7P/8/3P1N2/1b6

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.d4#
  • Keys
    • 1.Sf4!
      • threat
        • 2.Rd5#
      • 1...Kxf4
        • 2.Rxf6#
      • 1...Kf5
        • 2.Rd5#
      • 1...f5
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK::P(A)
  • Actual
    • S(E);
    • Threat
      • B(F)+R(D),DCHECK
    • Vars
      • K(b);S_FLIGHT,XS(E)::B(F)+R(D),DCHECK,XP(c)
      • K(b);P-FLIGHT::R(D)
      • P(c);SBLOCK,S_CUTB(a)::S(E)
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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).