MESON Chess Problem Database

Problem Display
PID: 155196 (8/2Q5/8/3K4/8/pP2BBp1/PpPbPpP1/1RNkNR2 w - - 0 1)

Barnes, Barry Peter

The Problemist, 2014

8/2Q5/8/3K4/8/pP2BBp1/PpPbPpP1/1RNkNR2

#2

13 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc1
      • 2.Sd3#
    • 1...Bxe1
      • 2.Sd3#
    • 1...Bc3
      • 2.Scd3#
    • 1...Bb4
      • 2.Scd3#
    • 1...Ba5
      • 2.Scd3#
  • Tries
    • 1.Qa5?
      • threat
        • 2.Qxd2#
      • 1...Bxc1
        • 2.Qd2#
      • 1...Bxe1
        • 2.Qd2#
      • 1...Bxa5
        • 2.Scd3#
      • 1...Bc3
        • 2.Scd3#
      • 1...Bb4
        • 2.Scd3#
      • 1...Bxe3!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qxd2#
      • 1...Bxc1
        • 2.Sd3#
        • 2.Qd2#
        • 2.Qd4#
        • 2.Qd3#
      • 1...Bxe1
        • 2.Sd3#
        • 2.Qd2#
        • 2.Qd3#
      • 1...Bxc3
        • 2.Scd3#
      • 1...Bxe3
        • 2.Sed3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(c);N_GUARD,P_SPINB(c),XS(B)::R(D)+S(C)
    • B(c);N_GUARD,P_SPINB(c),XS(C)::R(A)+S(B)
    • B(c);N_GUARD::R(A)+S(B)
  • Tries
    • Try
      • Q(M);
      • Threat
        • QAR1(M),XB(c)
      • Vars
        • B(c);P_SPINB(c),XS(B)::QAR1(M)
        • B(c);P_SPINB(c),XS(C)::QAR1(M)
        • B(c);N_GUARD,XQ(M)::R(A)+S(B)
        • B(c);N_GUARD::R(A)+S(B)
      • Refutation
        • B(c);XB(J)
  • Actual
    • Q(M);
    • Threat
      • QAR1(M),XB(c)
    • Vars
      • B(c);N_GUARD,XQ(M)::R(A)+S(B)
      • B(c);N_GUARD,XB(J)::R(D)+S(C)
HTML5 logo

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).