MESON Chess Problem Database

Problem Display
PID: 174820 (6bq/BKP5/5P1b/1p1kPP2/1p4N1/1P2pP2/3r4/Q7 w - - 0 1)

Barth, Michael

Freie Presse, 1992

6bq/BKP5/5P1b/1p1kPP2/1p4N1/1P2pP2/3r4/Q7

#2

10 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf6
      • 2.Sxf6#
    • 1...Rd1
      • 2.Qxd1#
    • 1...Ra2
      • 2.Qd4#
    • 1...Rc2
      • 2.Qd4#
    • 1...Re2
      • 2.Qd4#
    • 1...Rf2
      • 2.Qd4#
    • 1...Rg2
      • 2.Qd4#
    • 1...Rh2
      • 2.Qd4#
    • 1...Rd4
      • 2.Qxd4#
    • 1...Bg7
      • 2.Sxe3#
    • 1...Bf8
      • 2.Sxe3#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qc5#
        • 2.Qc6#
      • 1...Qxf6
        • 2.Sxf6#
        • 2.Qc5#
      • 1...Rc2
        • 2.Qd4#
        • 2.Qd3#
      • 1...Bf8
        • 2.Sxe3#
        • 2.Qc6#
      • 1...bxc3!
    • 1.Qc1?
      • threat
        • 2.Qc5#
        • 2.Qc6#
      • 1...Qxf6
        • 2.Qc5#
      • 1...Bf8
        • 2.Qc6#
      • 1...Rc2!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qxb5#
        • 2.Qc6#
        • 2.Qd6#
      • 1...Qxf6
        • 2.Qxb5#
      • 1...Rc2
        • 2.Qd6#
      • 1...Bf8
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • Q(h);XP(G)::S(D),XQ(h)
    • R(a);OGATEB::QAR(A),XR(a)
    • R(a);N_GUARD::QAR1(A)
    • R(a);N_GUARD::QAR1(A),XR(a)
    • B(f);N_GUARD::S(D),XP(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • Q(h);XP(G)::QAR1(A)
        • B(f);::QAB1(A)
      • Refutation
        • R(a);
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • Q(h);XP(G)::QAR2(A),XP(d)
      • R(a);::QAR1(A)
      • B(f);::QAB1(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).