MESON Chess Problem Database

Problem Display
PID: 263320 (8/3B1Q2/1p1p4/1pkbNR2/1pnp4/5r1r/P2BP3/K1N2n1q w - - 0 1)

Hjelle, David

Szachy, 1947

8/3B1Q2/1p1p4/1pkbNR2/1pnp4/5r1r/P2BP3/K1N2n1q

#2

9 + 12

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sed3#
    • 1...Bc6
      • 2.Sed3#
    • 1...Be6
      • 2.Sed3#
    • 1...Bb7
      • 2.Sed3#
    • 1...Bxf7
      • 2.Sed3#
    • 1...Ba8
      • 2.Sed3#
    • 1...Sfe3
      • 2.Sd3#
    • 1...Sce3
      • 2.Scd3#
    • 1...d3
      • 2.Sb3#
  • Keys
    • 1.e4!
      • threat
        • 2.Qxd5#
      • 1...Bxe4
        • 2.Sed3#
      • 1...Bxf7
        • 2.Sed3#
      • 1...dxe4 ep
        • 2.Sb3#
      • 1...Bc6
        • 2.Sed3#
      • 1...Be6
        • 2.Sed3#
      • 1...Bb7
        • 2.Sed3#
      • 1...Ba8
        • 2.Sed3#
      • 1...Sfe3
        • 2.Sd3#
      • 1...Sce3
        • 2.Scd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(j);::R(G)+S(F),DCHECK
    • B(j);XQ(I)::R(G)+S(F),DCHECK
    • S(a);P_PINS(B),S_CUTR(c)::S(F)
    • S(f);S_CUTR(c)::S(B)
    • P(g);S_CUTR(c)::S(B)
  • Actual
    • P(E);
    • Threat
      • QAR1(I),XB(j)
    • Vars
      • B(j);XP(E)::R(G)+S(F),DCHECK
      • B(j);XQ(I)::R(G)+S(F),DCHECK
      • P(g);EP,S_CUTR(c),XP(E)::S(B)
      • B(j);::R(G)+S(F),DCHECK
      • S(a);P_PINS(B),S_CUTR(c)::S(F)
      • S(f);S_CUTR(c)::S(B)
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).