MESON Chess Problem Database

Problem Display
PID: 173698 (R1Q1K3/1n6/1R1P4/1N2p3/pkpN4/b1r5/B1r5/8 w - - 0 1)

Boros, Sandor

Fleck, Ferenc

Skakbladet, 1933

R1Q1K3/1n6/1R1P4/1N2p3/pkpN4/b1r5/B1r5/8

#2

8 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Sxc2#
    • 1...Rd3
      • 2.Sxc2#
    • 1...Re3
      • 2.Sxc2#
    • 1...Rf3
      • 2.Sxc2#
    • 1...Rg3
      • 2.Sxc2#
    • 1...Rh3
      • 2.Sxc2#
    • 1...Sa5
      • 2.Sa7#
    • 1...Sc5
      • 2.Sc6#
      • 2.Sc7#
    • 1...Sxd6+
      • 2.Sxd6#
    • 1...exd4
      • 2.Sxd4#
  • Tries
    • 1.Qc5+?
      • 1...Sxc5
        • 2.Sc6#
        • 2.Sc7#
      • 1...Kxc5!
  • Keys
    • 1.Bb3!
      • threat
        • 2.Rxa4#
      • 1...Sxd6+
        • 2.Sxd6#
      • 1...Rxb3
        • 2.Sxc2#
      • 1...axb3
        • 2.Sxa3#
      • 1...cxb3
        • 2.Sxc3#
      • 1...exd4
        • 2.Sxd4#
      • 1...Sa5
        • 2.Sa7#
      • 1...Sc5
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD::S(B),XR(a)
    • S(h);SBLOCK::R(D)+S(C)
    • S(h);CHECK,XP(E)::R(D)+S(C),XS(h)
    • P(g);XS(B)::R(D)+S(C),XP(g)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • K(e);S_FLIGHT,XQ(G)
  • Actual
    • B(A);
    • Threat
      • R1(F),XP(d)
    • Vars
      • S(h);CHECK,XP(E)::R(D)+S(C),XS(h)
      • R(c);N_GUARD,SBLOCK,XB(A)::S(B),XR(a)
      • P(d);XB(A)::R(D)+S(C),XB(b)
      • P(f);XB(A)::R(D)+S(C),XR(c)
      • P(g);XS(B)::R(D)+S(C),XP(g)
      • S(h);SBLOCK::R(D)+S(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).