MESON Chess Problem Database

Problem Display
PID: 264171 (K2b3B/1n1B1P2/8/1N1k4/N1p1b2R/2pp1n2/3Q4/2r5 w - - 0 1)

Hermanson, Halvar

Tijdschrift vd KNSB, 1960

K2b3B/1n1B1P2/8/1N1k4/N1p1b2R/2pp1n2/3Q4/2r5

#2

8 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qxe4#
      • 1...Bxh4
        • 2.Sb6#
      • 1...Sxh4
        • 2.Qd4#
      • 1...Re1
        • 2.Saxc3#
      • 1...Bg6
        • 2.Qe6#
      • 1...Bh7
        • 2.Qe6#
      • 1...Sd2
        • 2.Qd4#
      • 1...Sg5
        • 2.Qd4#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sd6
        • 2.Qc5#
      • 1...Bf5!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qxe4#
      • 1...Bxh4
        • 2.Sc7#
      • 1...Sxh4
        • 2.Qe5#
      • 1...Bf5
        • 2.Qxc4#
      • 1...Re1
        • 2.Sbxc3#
      • 1...Bg6
        • 2.Qxc4#
      • 1...Bh7
        • 2.Qxc4#
      • 1...Sd2
        • 2.Qe5#
      • 1...Sg5
        • 2.Qe5#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);N_PINP(c)
      • Threat
        • QAB1(A),XB(f)
      • Vars
        • B(i);N_GUARD,XR(C)::S(B)
        • S(d);N_GUARD,XR(C)::QAR1(A)
        • R(a);N_GUARD::S(B),XP(b)
        • B(f);OGATE::QAB1(A)
        • S(d);N_GUARD::QAR1(A)
        • S(h);N_GUARD::QAR1(A),XS(h)
        • S(h);N_GUARD::QAR1(A)
      • Refutation
        • B(f);
  • Actual
    • Q(A);N_PINP(c)
    • Threat
      • QAB1(A),XB(f)
    • Vars
      • B(i);N_GUARD,XR(C)::S(D)
      • S(d);N_GUARD,XR(C)::QAR1(A)
      • B(f);OGATE::QAB1(A),XP(e)
      • R(a);N_GUARD::S(D),XP(b)
      • S(d);N_GUARD::QAR1(A)
      • S(h);N_GUARD::QAR1(A)
      • S(h);N_GUARD::QAR1(A),XS(h)
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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).