MESON Chess Problem Database

Problem Display
PID: 224676 (8/8/3p3B/1NbR4/B7/p2prNp1/4k1K1/n1q1rR2 w - - 0 1)

Joseph, Samuel M

The Sunny South, 1887

8/8/3p3B/1NbR4/B7/p2prNp1/4k1K1/n1q1rR2

#2

7 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Rxe1#
    • 1...Qd2
      • 2.Sg1#
    • 1...Qb1
      • 2.Sc3#
    • 1...Qd1
      • 2.Sc3#
    • 1...Qc2
      • 2.Rxe1#
    • 1...Qc3
      • 2.Sxc3#
    • 1...Qc4
      • 2.Rxe1#
    • 1...Bb4
      • 2.Sbd4#
    • 1...Bd4
      • 2.Sbxd4#
    • 1...Sc2
      • 2.Sc3#
    • 1...d2
      • 2.Sg1#
  • Keys
    • 1.Bc2!
      • threat
        • 2.Sc3#
      • 1...Qxc2
        • 2.Rxe1#
      • 1...dxc2
        • 2.Sg1#
      • 1...Qb2
        • 2.Rxe1#
      • 1...Qd2
        • 2.Sg1#
      • 1...Bb4
        • 2.Sbd4#
      • 1...Bd4
        • 2.Sbxd4#
      • 1...d2
        • 2.Sg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • Q(b);N_GUARD::R1(A),XR(c)
    • Q(b);SBLOCK::S(C)
    • Q(b);N_GUARD::S(E)
    • Q(b);N_GUARD::S(E),XQ(b)
    • B(i);N_GUARD::S(E)
    • B(i);N_GUARD::S(E),XB(i)
    • S(a);S_CUTQ(b)::S(E)
    • P(f);::S(C)
  • Actual
    • B(D);
    • Threat
      • S(E)
    • Vars
      • Q(b);N_GUARD,XB(D)::R1(A),XR(c)
      • P(f);XB(D)::S(C)
      • Q(b);N_GUARD::R1(A),XR(c)
      • Q(b);SBLOCK::S(C)
      • B(i);N_GUARD::S(E)
      • B(i);N_GUARD::S(E),XB(i)
      • P(f);::S(C)
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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).