MESON Chess Problem Database

Problem Display
PID: 175071 (6Q1/K2p3B/3P4/1pp1rN2/3Nk3/2p3P1/2PPbp2/1n6 w - - 0 1)

Stritecky Blazej

Sachove listy, 1902

6Q1/K2p3B/3P4/1pp1rN2/3Nk3/2p3P1/2PPbp2/1n6

#2

9 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.d3#
    • 1...Bf3
      • 2.d3#
    • 1...Bg4
      • 2.d3#
    • 1...Bh5
      • 2.d3#
  • Tries
    • 1.Se3+?
      • 1...Rf5
        • 2.Qd5#
      • 1...Kxd4!
    • 1.Se7+?
      • 1...Rf5
        • 2.Qd5#
      • 1...Kxd4!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sg5#
      • 1...Kxf3
        • 2.Sh4#
      • 1...Rxf5
        • 2.Qa8#
      • 1...Bxf3
        • 2.d3#
      • 1...Re6
        • 2.Qa8#
      • 1...Rd5
        • 2.Qg4#
      • 1...Re7
        • 2.Qa8#
      • 1...Re8
        • 2.S5d4#
        • 2.S5h4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • B(b);N_GUARD::P(B)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • R(h);P_SPINR(h)::QAB1(I)
      • Refutation
        • K(e);P-FLIGHT,XS(D)
    • Try
      • S(E);CHECK
      • Vars
        • R(h);P_SPINR(h)::QAB1(I)
      • Refutation
        • K(e);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(e);S_FLIGHT,XS(D)::S(E)
      • R(h);N_GUARD,P_SPINR(h),XS(E)::QAB(I)
      • B(b);N_GUARD,SBLOCK,XS(D)::P(B)
      • R(h);N_GUARD::QAB(I)
      • R(h);SBLOCK::QAR2(I)
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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).