MESON Chess Problem Database

Problem Display
PID: 194086 (b7/8/5p2/1Q3p1N/1P1pk1Nn/7n/2K3P1/8 w - - 0 1)

Rosenblatt, Paul

Eskilstuna Kuriren, 1917

b7/8/5p2/1Q3p1N/1P1pk1Nn/7n/2K3P1/8

#2

6 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qe2#
      • 2.Qd3#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Bb7
      • 2.Qxb7#
    • 1...Sf4
      • 2.Sg3#
      • 2.Shxf6#
    • 1...d3+
      • 2.Qxd3#
    • 1...f4
      • 2.Shxf6#
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qe6#
        • 2.Qxa8#
      • 1...d3+
        • 2.Qxd3#
      • 1...Kd5
        • 2.Shxf6#
      • 1...Sxg2
        • 2.Qxa8#
      • 1...fxg4
        • 2.Qe6#
      • 1...f4
        • 2.Qe6#
      • 1...Bd5
        • 2.Qe2#
        • 2.Qd3#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bb7
        • 2.Qxb7#
        • 2.Qe6#
      • 1...Sf4
        • 2.Shxf6#
      • 1...Sg5
        • 2.Qxa8#
      • 1...Sf3
        • 2.Qxa8#
      • 1...Sg6
        • 2.Qxa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • B(g);N_GUARD::QAB(E),XB(g)
    • P(b);CHECK::QAB1(E),XP(b)
    • P(e);SBLOCK::S(F),XP(f)
  • Actual
    • Q(E);
    • Threat
      • DUALS(2)
    • Vars
      • P(b);CHECK::QAB1(E),XP(b)
      • K(c);S_FLIGHT::S(F),XP(f)
      • S(d);XP(B)::QAB(E),XB(g)
      • P(e);XS(D)::QAR2(E)
      • P(e);::QAR2(E)
      • B(g);N_GUARD::QAB(E),XB(g)
      • S(a);SBLOCK::S(F),XP(f)
      • S(a);::QAB(E),XB(g)
      • S(d);::QAB(E),XB(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).