MESON Chess Problem Database

Problem Display
PID: 21225 (6kr/3pK2p/4pP2/2P5/5p2/1p1Qp3/q7/8 w - - 0 1)

Holst, Viktor

Illustrated Family Journal, 1917

6kr/3pK2p/4pP2/2P5/5p2/1p1Qp3/q7/8

#2

4 + 9

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qd5#
    • 1...h5
      • 2.Qg6#
    • 1...h6
      • 2.Qg6#
  • Keys
    • 1.Qe4!
      • 1...Qb1
        • 2.Qa8#
      • 1...Qa1
        • 2.Qg2#
      • 1...Qb2
        • 2.Qa8#
      • 1...Qc2
        • 2.Qa8#
      • 1...Qd2
        • 2.Qa8#
      • 1...Qe2
        • 2.Qa8#
      • 1...Qf2
        • 2.Qa8#
      • 1...Qg2
        • 2.Qxg2#
      • 1...Qh2
        • 2.Qa8#
      • 1...Qa3
        • 2.Qg2#
      • 1...Qa4
        • 2.Qg2#
      • 1...Qa5
        • 2.Qg2#
      • 1...Qa6
        • 2.Qg2#
      • 1...Qa7
        • 2.Qg2#
      • 1...Qa8
        • 2.Qxa8#
      • 1...b2
        • 2.Qg2#
      • 1...e2
        • 2.Qg2#
      • 1...f3
        • 2.Qg4#
      • 1...e5
        • 2.Qd5#
      • 1...d5
        • 2.Qxe6#
      • 1...d6
        • 2.Qxe6#
      • 1...h5
        • 2.Qg6#
      • 1...h6
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 20
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATEB::QAB(A)
    • P(g);N_GUARD::QAR2(A)
  • Actual
    • Q(A);
    • Vars
      • Q(a);N_GUARD::QAR(A)
      • Q(a);N_GUARD::QAR(A),XQ(a)
      • Q(a);N_GUARD,P_PINP(B)::QAR(A)
      • P(b);S_CUTQ(a)::QAR(A)
      • P(c);S_CUTQ(a)::QAR(A)
      • P(d);OGATE::QAR(A)
      • P(e);OGATEB::QAB(A)
      • P(f);N_GUARD::QAB(A),XP(e)
      • P(g);N_GUARD::QAR2(A)
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).