MESON Chess Problem Database

Problem Display
PID: 220242 (BQ6/3r1pN1/2qn4/2p1n3/R2bkNp1/3p2B1/b2P2K1/8 w - - 0 1)

Oksala, Yrjo

Suomen Shakki, 1955

BQ6/3r1pN1/2qn4/2p1n3/R2bkNp1/3p2B1/b2P2K1/8

#2

8 + 11

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bxc6+?
      • 1...Bd5
        • 2.Bxd5#
      • 1...Sxc6!
  • Keys
    • 1.Sfh5!
      • threat
        • 2.Sf6#
      • 1...Kd5
        • 2.Sf6#
      • 1...Sec4
        • 2.Bxc6#
      • 1...Sb7
        • 2.Qxe5#
      • 1...Se8
        • 2.Qxe5#
      • 1...f6
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);CHECK,XQ(h)
      • Vars
        • B(a);N_GUARD::B(G),XB(a)
      • Refutation
        • S(g);XB(G)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(d);N_SPINB(c),S_FLIGHT::S(E)
      • S(g);N_GUARD,N_SPINB(c),S_CUTB(a)::B(G),XQ(h)
      • S(i);N_SPINQ(h),OGATE::QAR1(H),XS(g)
      • S(i);OGATE::QAR1(H),XS(g)
      • P(k);::S(E),XP(k)
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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).