MESON Chess Problem Database

Problem Display
PID: 124468 (8/1bBp1Q2/pP1P4/P1krn1R1/B3P3/1KP1P3/2N5/8 w - - 0 1)

Anonymous

Source?, 0000

8/1bBp1Q2/pP1P4/P1krn1R1/B3P3/1KP1P3/2N5/8

#2

12 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qc4#
    • 1...Rd2
      • 2.Qc4#
    • 1...Rd3
      • 2.Qc4#
    • 1...Rd4
      • 2.cxd4#
      • 2.exd4#
    • 1...Rxd6
      • 2.Qc4#
    • 1...Bc8
      • 2.Qxd5#
    • 1...Sc6
      • 2.Rxd5#
      • 2.Qxd5#
  • Keys
    • 1.Sb4!
      • 1...Rxd6
        • 2.Qc4#
      • 1...Sxf7
        • 2.Sd3#
      • 1...Bc6
        • 2.Sxa6#
      • 1...Rd1
        • 2.Qc4#
      • 1...Rd2
        • 2.Qc4#
      • 1...Rd3
        • 2.Sxd3#
        • 2.Qc4#
      • 1...Rd4
        • 2.cxd4#
        • 2.exd4#
      • 1...Ba8
        • 2.Sxa6#
      • 1...Bc8
        • 2.Qxd5#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sf3
        • 2.Sd3#
      • 1...Sc4
        • 2.Sd3#
      • 1...Sg4
        • 2.Sd3#
      • 1...Sc6
        • 2.Sd3#
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Sg6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • R(b);OGATE,P_SPINS(c)::QAR1(L)
    • R(b);OGATE,P_PINP(C),P_SPINS(c)::QAR1(L)
    • R(b);OGATE,P_SPINS(c),XP(J)::QAR1(L)
    • B(e);N_GUARD::QAR1(L),XR(b)
  • Actual
    • S(A);
    • Vars
      • R(b);OGATE,P_SPINS(c),XP(J)::QAR1(L)
      • S(c);N_GUARD,P_SPINR(b),XQ(L)::S(A)
      • B(e);N_GUARD::S(A),XP(d)
      • R(b);OGATE,P_SPINS(c)::QAR1(L)
      • B(e);N_GUARD::QAR1(L),XR(b)
      • S(c);N_GUARD,P_SPINR(b)::S(A),XS(c)
      • S(c);N_GUARD,P_SPINR(b)::S(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).