MESON Chess Problem Database

Problem Display
PID: 273004 (3r2B1/5n2/1pr5/p1k1B1N1/P1P1n2R/K1p1P3/8/7Q w - - 0 1)

Endrell, Gunnar

Schackvarlden, 1941

3r2B1/5n2/1pr5/p1k1B1N1/P1P1n2R/K1p1P3/8/7Q

#2

9 + 8

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Sed6
      • 2.Se6#
      • 2.Qd5#
    • 1...Sxe5
      • 2.Sxe4#
    • 1...Sfd6
      • 2.Bd4#
    • 1...Sh6
      • 2.Sxe4#
    • 1...Sh8
      • 2.Sxe4#
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qb5#
      • 1...Kxc4
        • 2.Qb5#
      • 1...Sxe5
        • 2.Sxe4#
      • 1...b5
        • 2.Qxb5#
      • 1...Sed6
        • 2.Se6#
      • 1...Sfd6
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(g);XB(G)::S(H),XS(b)
    • S(g);SBLOCK,S_CUTR(h)::B(G)
    • S(g);::S(H),XS(b)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(d);P-FLIGHT,P_SPINS(b),XP(E)::QAB1(A)
      • S(g);XB(G)::S(H),XS(b)
      • P(e);::QAR1(A),XP(e)
      • S(b);S_CUTR(f)::S(H)
      • S(g);SBLOCK,S_CUTR(h)::B(G)
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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).