MESON Chess Problem Database

Problem Display
PID: 201445 (B3n3/Q5b1/1Np1r3/R6p/4kpp1/1NP2r1q/2pPP1P1/2Kn4 w - - 0 1)

Lindgren, Frithiof

Eskilstuna Kuriren, 1922

B3n3/Q5b1/1Np1r3/R6p/4kpp1/1NP2r1q/2pPP1P1/2Kn4

#2

10 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Bxc6#
    • 1...Bf6
      • 2.Qh7#
    • 1...Se3
      • 2.d3#
    • 1...Sd6
      • 2.Bxc6#
    • 1...g3
      • 2.gxf3#
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qf5#
      • 1...Re5
        • 2.Ra4#
      • 1...Rf6
        • 2.Qc4#
      • 1...Be5
        • 2.Sc5#
      • 1...Bf6
        • 2.Qg6#
        • 2.Qh7#
      • 1...Se3
        • 2.d3#
      • 1...Sd6
        • 2.Bxc6#
      • 1...Sf6
        • 2.Qxe6#
        • 2.Qg6#
      • 1...g3
        • 2.gxf3#

This is a version of 201357

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(j);N_GUARD::B(J),XP(i)
    • B(k);OGATE::QAB(I)
    • S(a);SBLOCK,S_CUTR(c)::P(B)
    • S(l);S_CUTR(j)::B(J),XP(i)
    • P(g);N_GUARD,S_CUTQ(d)::P(D),XR(c)
  • Actual
    • Q(I);
    • Threat
      • QAB1(I)
    • Vars
      • R(j);SBLOCK,S_CUTB(k)::R(G)
      • R(j);OGATE::QAR2(I)
      • B(k);SBLOCK::S(E)
      • S(a);SBLOCK,S_CUTR(c)::P(B)
      • S(l);S_CUTR(j)::B(J),XP(i)
      • P(g);N_GUARD,S_CUTQ(d)::P(D),XR(c)
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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).