MESON Chess Problem Database

Problem Display
PID: 91475 (n2nN3/2R1p1b1/4R1P1/1K1k1b2/2pP4/6N1/8/Q7 w - - 0 1)

Hartong, Jan

Probleemblad, 1950

n2nN3/2R1p1b1/4R1P1/1K1k1b2/2pP4/6N1/8/Q7

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe6
      • 2.Rc5#
    • 1...Be5
      • 2.Rxe5#
    • 1...Bh6
      • 2.Re5#
    • 1...Bf8
      • 2.Re5#
    • 1...Sxc7+
      • 2.Sxc7#
    • 1...Sxe6
      • 2.Rd7#
  • Keys
    • 1.Se2!
      • threat
        • 2.Sf4#
      • 1...Sxc7+
        • 2.Sxc7#
      • 1...Kxe6
        • 2.Sf4#
      • 1...Bxe6
        • 2.Qh1#
      • 1...Sxe6
        • 2.Qxa8#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bh6
        • 2.Re5#
      • 1...c3
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(c);SBLOCK,XR(E)::R1(G)
    • B(e);N_GUARD::R1(E),XB(e)
    • B(e);N_GUARD::R1(E)
    • S(f);CHECK,XR(G)::S(H),XS(f)
    • S(g);SBLOCK,XR(E)::R(G)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • S(f);CHECK,XR(G)::S(H),XS(f)
      • K(b);S_FLIGHT,XR(E)::S(B)
      • B(c);N_GUARD,SBLOCK,XR(E)::QAB(A)
      • S(g);N_GUARD,SBLOCK,XR(E)::QAB(A),XS(f)
      • B(e);N_GUARD::R1(E),XB(e)
      • B(e);N_GUARD::R1(E)
      • P(a);OGATEB::QAB(A)
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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).