MESON Chess Problem Database

Problem Display
PID: 222826 (8/8/3p2B1/3p4/1K1krp1R/1p2N3/p1P1Q3/N1n5 w - - 0 1)

Matzner, Anton

Wiener Hausfrauen-Zeitung, 1883

8/8/3p2B1/3p4/1K1krp1R/1p2N3/p1P1Q3/N1n5

#2

7 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.c3#
    • 1...Re6
      • 2.Sf5#
    • 1...Re7
      • 2.Sf5#
    • 1...Re8
      • 2.Sf5#
  • Tries
    • 1.Sg4?
      • threat
        • 2.c3#
      • 1...Sd3+
        • 2.Qxd3#
      • 1...Sxe2
        • 2.Sxb3#
      • 1...bxc2
        • 2.Sxc2#
      • 1...Re3!
  • Keys
    • 1.Sc4!
      • threat
        • 2.c3#
      • 1...Sd3+
        • 2.Qxd3#
      • 1...Sxe2
        • 2.Sxb3#
      • 1...bxc2
        • 2.Sxc2#
      • 1...dxc4
        • 2.Qxe4#
      • 1...Re3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(e);P_SPINP(f),SBLOCK::P(B)
    • R(e);P_SPINP(f)::S(D)
  • Tries
    • Try
      • S(D);
      • Threat
        • P(B)
      • Vars
        • S(a);CHECK,N_GUARD::QAR1(C),XS(a)
        • S(a);N_GUARD,XQ(C)::S(A),XP(c)
        • P(c);XP(B)::S(A),XP(c)
      • Refutation
        • R(e);
  • Actual
    • S(D);
    • Threat
      • P(B)
    • Vars
      • S(a);CHECK,N_GUARD::QAR1(C),XS(a)
      • S(a);N_GUARD,XQ(C)::S(A),XP(c)
      • P(c);XP(B)::S(A),XP(c)
      • P(g);N_GUARD,XS(D)::QAR1(C),XR(e)
      • R(e);N_GUARD,P_SPINP(f)::QAB1(C),XR(e)
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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).