MESON Chess Problem Database

Problem Display
PID: 59547 (2rb4/1pqR4/1NP1p2K/3Bk1pN/1B1p2P1/r7/1n1Qb3/R1n5 w - - 0 1)

Clark, Robert Winslow

Comm., Brisbane Courier, 1922-1923

2rb4/1pqR4/1NP1p2K/3Bk1pN/1B1p2P1/r7/1n1Qb3/R1n5

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Bxd6#
    • 1...Bd3
      • 2.Qh2#
    • 1...Bf3
      • 2.Qh2#
    • 1...Sb3
      • 2.Qxe2#
    • 1...Scd3
      • 2.Qxe2#
    • 1...Sbd3
      • 2.Sc4#
    • 1...d3
      • 2.Qe3#
  • Tries
    • 1.Bh1?
      • threat
        • 2.Qxd4#
      • 1...Qxb6
        • 2.Bd6#
      • 1...Qxd7
        • 2.Sxd7#
      • 1...Qd6
        • 2.Bxd6#
      • 1...Rd3
        • 2.Ra5#
      • 1...Bd3
        • 2.Qh2#
      • 1...Sb3
        • 2.Qxe2#
      • 1...Scd3
        • 2.Qxe2#
      • 1...Sbd3
        • 2.Sc4#
      • 1...d3
        • 2.Qe3#
      • 1...Bxg4!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qxd4#
      • 1...Qxb6
        • 2.Bd6#
      • 1...Qxd7
        • 2.Sxd7#
      • 1...Qd6
        • 2.Bxd6#
      • 1...Rd3
        • 2.Ra5#
      • 1...Bd3
        • 2.Qh2#
      • 1...Sb3
        • 2.Qxe2#
      • 1...Scd3
        • 2.Qxe2#
      • 1...Sbd3
        • 2.Sc4#
      • 1...d3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(j);N_GUARD::B(C),XQ(j)
    • B(c);OGATE::QAB(B)
    • S(a);N_GUARD,S_CUTR(d)::QAR(B),XB(c)
    • S(b);N_GUARD,S_CUTB(c)::S(G)
    • P(e);N_GUARD,S_CUTR(d)::QAR2(B)
  • Tries
    • Try
      • B(E);
      • Threat
        • QAB1(B),XP(e)
      • Vars
        • Q(j);N_GUARD,XS(G)::B(C)
        • Q(j);XR(J)::S(G),XQ(j)
        • Q(j);N_GUARD::B(C),XQ(j)
        • R(d);OGATE::R(A)
        • B(c);OGATE::QAB(B)
        • S(a);N_GUARD,S_CUTR(d)::QAR(B),XB(c)
        • S(b);N_GUARD,S_CUTB(c)::S(G)
        • P(e);N_GUARD,S_CUTR(d)::QAR2(B)
      • Refutation
        • B(c);XP(D)
  • Actual
    • B(E);
    • Threat
      • QAB1(B),XP(e)
    • Vars
      • Q(j);N_GUARD,XS(G)::B(C)
      • Q(j);XR(J)::S(G),XQ(j)
      • Q(j);N_GUARD::B(C),XQ(j)
      • R(d);OGATE::R(A)
      • B(c);OGATE::QAB(B)
      • S(a);N_GUARD,S_CUTR(d)::QAR(B),XB(c)
      • S(b);N_GUARD,S_CUTB(c)::S(G)
      • P(e);N_GUARD,S_CUTR(d)::QAR2(B)
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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).