MESON Chess Problem Database

Problem Display
PID: 129862 (8/6Nr/7p/5p2/4p1pk/3nQ3/5n1B/K7 w - - 0 1)

Drnek, Josef

Nove parizske mody, 1904

8/6Nr/7p/5p2/4p1pk/3nQ3/5n1B/K7

#2

4 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg7
      • 2.Qxh6#
    • 1...Sh3
      • 2.Bg3#
    • 1...g3
      • 2.Qxg3#
    • 1...h5
      • 2.Sxf5#
  • Tries
    • 1.Be5?
      • threat
        • 2.Bf6#
      • 1...Rxg7
        • 2.Qxh6#
      • 1...g3
        • 2.Qxg3#
      • 1...Sh3
        • 2.Bg3#
      • 1...Sxe5!
    • 1.Bc7?
      • threat
        • 2.Bd8#
      • 1...Rxg7
        • 2.Qxh6#
      • 1...g3
        • 2.Qxg3#
      • 1...Sh3
        • 2.Bg3#
      • 1...Rh8!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Be7#
      • 1...Rxg7
        • 2.Qxh6#
      • 1...g3
        • 2.Qxg3#
      • 1...Sh3
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(h);N_GUARD,XS(D)::QAR2(C),XP(g)
    • S(a);SBLOCK::B(B)
    • P(d);::QAB1(C),XP(d)
    • P(g);SBLOCK::S(D),XP(f)
  • Tries
    • Try
      • B(B);
      • Threat
        • B(B)
      • Vars
        • R(h);N_GUARD,XS(D)::QAR2(C),XP(g)
        • P(d);::QAB1(C),XP(d)
        • S(a);SBLOCK::B(B)
      • Refutation
        • S(b);XB(B)
    • Try
      • B(B);
      • Threat
        • B(B)
      • Vars
        • R(h);N_GUARD,XS(D)::QAR2(C),XP(g)
        • P(d);::QAB1(C),XP(d)
        • S(a);SBLOCK::B(B)
      • Refutation
        • R(h);
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • R(h);N_GUARD,XS(D)::QAR2(C),XP(g)
      • P(d);::QAB1(C),XP(d)
      • S(a);SBLOCK::B(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).