MESON Chess Problem Database

Problem Display
PID: 194912 (8/2pbp3/3p3K/8/3kP2R/1PpN1Rp1/6r1/Q7 w - - 0 1)

Huse, Hans Markus

Tidskrift for Schack, 1918

8/2pbp3/3p3K/8/3kP2R/1PpN1Rp1/6r1/Q7

#2

7 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qxg1#
    • 1...Bh3
      • 2.Qa4#
    • 1...Ba4
      • 2.Qxa4#
    • 1...Bg4
      • 2.Qa4#
    • 1...Bf5
      • 2.Qa4#
    • 1...Bc6
      • 2.Qa7#
    • 1...Bc8
      • 2.Qa4#
    • 1...c6
      • 2.Qa4#
  • Tries
    • 1.Qe1?
      • threat
        • 2.Qe3#
      • 1...c2
        • 2.Qb4#
        • 2.Qa1#
      • 1...Re2!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qd5#
      • 1...c2
        • 2.Qa1#
      • 1...Bc6
        • 2.Qa7#
      • 1...Be6
        • 2.Qh8#
      • 1...d5
        • 2.Qxd5#
      • 1...c6
        • 2.Qa4#
      • 1...e6
        • 2.e5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD::QAB(A),XR(a)
    • B(g);N_GUARD::QAR(A)
    • B(g);N_GUARD::QAR(A),XB(g)
    • B(g);S_CUTP(f)::QAB(A)
    • P(f);S_CUTB(g)::QAR(A)
  • Tries
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • QAB1(A)
      • Refutation
        • R(a);
  • Actual
    • Q(A);N_PINP(b)
    • Threat
      • QAR1(A)
    • Vars
      • P(b);OGATEB::QAB(A)
      • B(g);S_CUTP(f)::QAB(A)
      • B(g);S_CUTP(h)::QAB(A)
      • P(e);::QAR1(A),XP(e)
      • P(f);S_CUTB(g)::QAR(A)
      • P(h);S_CUTB(g)::R(F)+P(E)
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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).