MESON Chess Problem Database

Problem Display
PID: 98875 (r3nBNK/3pP3/3R4/1n1pkP2/2R3Q1/3P4/4P2b/8 w - - 0 1)

Swane, Jan Arnold Willem

Problem (Zagreb), 1953

r3nBNK/3pP3/3R4/1n1pkP2/2R3Q1/3P4/4P2b/8

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qf4#
    • 1...Bf4
      • 2.Qxf4#
    • 1...Sbxd6
      • 2.d4#
    • 1...Sexd6
      • 2.Bg7#
  • Tries
    • 1.Qg3+?
      • 1...Kxf5
        • 2.Sh6#
      • 1...Bxg3!
  • Keys
    • 1.Sh6!
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.Sf7#
      • 1...Sbxd6
        • 2.Qd4#
      • 1...Sexd6
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB1(D)
    • B(a);N_GUARD::QAB1(D),XB(a)
    • S(b);N_GUARD,SBLOCK,XR(F)::P(B)
    • S(g);N_GUARD,SBLOCK,XR(F)::B(H)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(E)::S(I)
      • Refutation
        • B(a);XQ(D)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • K(d);S_FLIGHT,XR(F)::S(I)
      • S(b);N_GUARD,SBLOCK,XR(F)::QAB1(D)
      • S(g);N_GUARD,P_PINB(H),SBLOCK,XR(F)::QAB(D)
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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).