MESON Chess Problem Database

Problem Display
PID: 274280 (8/5pr1/7b/1K2p2b/1B6/RN1B1NP1/1k3PR1/8 w - - 0 1)

Eriksson, Einar

Springaren, 1991

8/5pr1/7b/1K2p2b/1B6/RN1B1NP1/1k3PR1/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.fxe3#
  • Tries
    • 1.Ra2+?
      • 1...Kxb3
        • 2.Bc4#
      • 1...Kxa2!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Sc4#
      • 1...Rg4
        • 2.f4#
      • 1...Rg5
        • 2.f3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(d);OGATE::R(B)+P(A),XB(d)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XS(D)::B(E)
      • Refutation
        • K(a);P-FLIGHT,XR(C)
  • Actual
    • S(F);XP(b)
    • Threat
      • S(F)
    • Vars
      • R(f);S_CUTB(c)::R(B)+P(A)
      • R(f);P_PINS(F),S_CUTB(d)::R(B)+P(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).