MESON Chess Problem Database

Problem Display
PID: 207019 (2n1b1q1/1K1k1p2/2N3p1/2P5/1n1b1Q2/8/6B1/8 w - - 0 1)

Lange, Max

Sonntagsblatt fur Schachfreunde, 1861

2n1b1q1/1K1k1p2/2N3p1/2P5/1n1b1Q2/8/6B1/8

#2

5 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Bh3#
      • 2.Qg4#
    • 1...Sb6
      • 2.Qd6#
    • 1...Sd6+
      • 2.Qxd6#
    • 1...Sa7
      • 2.Qd6#
    • 1...Se7
      • 2.Qd6#
    • 1...g5
      • 2.Qf5#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sb8#
        • 2.Bh3#
      • 1...Sd6+
        • 2.Qxd6#
      • 1...Bxf6
        • 2.Bh3#
      • 1...Sxc6
        • 2.Bh3#
        • 2.Bxc6#
      • 1...Qh7
        • 2.Sb8#
      • 1...Qh8
        • 2.Sb8#
      • 1...Be5
        • 2.Sxe5#
        • 2.Bh3#
      • 1...Sa6
        • 2.Bh3#
      • 1...Se7
        • 2.Qxe7#
        • 2.Qd6#
      • 1...g5
        • 2.Sb8#
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • S(f);N_GUARD::QAR1(B)
    • S(f);CHECK,N_GUARD::QAR1(B),XS(f)
    • P(c);N_GUARD::QAB(B)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • S(f);CHECK,N_GUARD::QAR1(B),XS(f)
      • B(b);XQ(B)::B(A)
      • Q(h);::S(D)
      • S(a);::B(A)
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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).