MESON Chess Problem Database

Problem Display
PID: 121524 (8/4p1K1/8/8/5N2/7p/6R1/r1Q2bBk w - - 0 1)

Drnek, Josef

Nove parizske mody, 1903

8/4p1K1/8/8/5N2/7p/6R1/r1Q2bBk

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Rh2#
    • 1...Bd3
      • 2.Rh2#
    • 1...Bc4
      • 2.Rh2#
    • 1...Bb5
      • 2.Rh2#
    • 1...Ba6
      • 2.Rh2#
  • Tries
    • 1.Qxf1?
      • threat
        • 2.Rh2#
      • 1...hxg2
        • 2.Qxg2#
      • 1...Ra2
        • 2.Bf2#
        • 2.Bh2#
        • 2.Be3#
        • 2.Bd4#
        • 2.Bc5#
        • 2.Bb6#
        • 2.Ba7#
      • 1...h2
        • 2.Rxh2#
      • 1...Rxf1!
  • Keys
    • 1.Se2!
      • threat
        • 2.Rh2#
      • 1...Kxg2
        • 2.Qc6#
      • 1...Bxg2
        • 2.Sg3#
      • 1...hxg2
        • 2.Qh6#
      • 1...h2
        • 2.Rxh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • B(b);::R1(C)
  • Tries
    • Try
      • Q(A);XB(b)
      • Threat
        • R1(C)
      • Vars
        • P(d);OGATE,XR(C)::QAB1(A),XP(d)
        • P(d);::R1(C),XP(d)
      • Refutation
        • R(a);XQ(A)
  • Actual
    • S(D);
    • Threat
      • R1(C)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(C)::QAB(A)
      • B(b);SBLOCK,XR(C)::S(D)
      • P(d);OGATEB,SBLOCK,XR(C)::QAR(A)
      • P(d);::R1(C),XP(d)
HTML5 logo

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).