MESON Chess Problem Database

Problem Display
PID: 202604 (2R5/1n3p2/5b2/2q2Q1K/P1k1r2p/1p3N2/3BP3/2nR4 w - - 0 1)

Dalton, William Robert Inge

Brisbane Courier, 1923

2R5/1n3p2/5b2/2q2Q1K/P1k1r2p/1p3N2/3BP3/2nR4

#2

8 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Qb5#
    • 1...Qc7
      • 2.Qb5#
    • 1...Qxc8
      • 2.Qb5#
    • 1...Rd4
      • 2.Rxc1#
    • 1...Be5
      • 2.Qxf7#
    • 1...Bg5
      • 2.Rxc1#
      • 2.Qxe4#
    • 1...Be7
      • 2.Rxc1#
    • 1...Bd8
      • 2.Rxc1#
    • 1...Sa5
      • 2.Rxc5#
      • 2.Qxc5#
    • 1...Sd6
      • 2.Rxc5#
      • 2.Qxc5#
    • 1...Sd8
      • 2.Rxc5#
      • 2.Qxc5#
  • Keys
    • 1.Ba5!
      • threat
        • 2.Qd5#
      • 1...Sxa5
        • 2.Qxc5#
      • 1...Rd4
        • 2.Rxc1#
      • 1...Re5
        • 2.Rd4#
      • 1...Bd4
        • 2.Sd2#
      • 1...Be5
        • 2.Qxf7#
      • 1...Sd3
        • 2.exd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(f);N_PINQ(F)::QAB1(F)
    • Q(f);N_PINQ(F),N_SPINQ(f),XR(H)::QAB1(F)
    • R(d);S_CUTB(g)::R(A),XS(a)
    • B(g);N_PINQ(F)::QAB(F),XP(i)
    • B(g);N_GUARD::R(A),XS(a)
  • Actual
    • B(B);
    • Threat
      • QAB1(F)
    • Vars
      • S(h);N_GUARD,XB(B)::QAR1(F),XQ(f)
      • R(d);S_CUTB(g)::R(A),XS(a)
      • R(d);N_GUARD,S_CUTB(g)::R1(A)
      • B(g);SBLOCK::S(D)
      • B(g);N_PINQ(F)::QAB(F),XP(i)
      • S(a);OGATE::P(C),XS(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).