MESON Chess Problem Database

Problem Display
PID: 196997 (4R3/8/8/1P2b3/4k2n/2P5/2K2QP1/8 w - - 0 1)

Bosshard, F

Schweizerische Schachzeitung, 1919

4R3/8/8/1P2b3/4k2n/2P5/2K2QP1/8

#2

6 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sf5
      • 2.Qf3#
    • 1...Sg6
      • 2.Qf3#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Ke3
        • 2.Rxe5#
      • 1...Kd5
        • 2.Qc6#
      • 1...Sxg2
        • 2.Rxe5#
      • 1...Sf5
        • 2.Qxe5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sg6
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::QAB1(B),XS(b)
    • S(b);N_GUARD::QAB1(B)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::R(F),XB(c)
      • K(a);N_SPINB(c),S_FLIGHT::QAB1(B)
      • S(b);XP(C)::R1(F),XB(c)
      • S(b);::QAR1(B),XB(c)
      • S(b);N_GUARD::QAB1(B),XS(b)
      • S(b);N_GUARD::QAB1(B)
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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).