MESON Chess Problem Database

Problem Display
PID: 143736 (7n/8/3N4/pP2k1K1/r3PN2/b7/8/4R1Q1 w - - 0 1)

Colville, Robert A

British Chess Magazine, 1896

7n/8/3N4/pP2k1K1/r3PN2/b7/8/4R1Q1

#2

7 + 5

193 Wiener Schachzeitung 1898

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Qc5#
    • 1...Rc4
      • 2.Sxc4#
    • 1...Rxe4
      • 2.Sc4#
    • 1...Bc1
      • 2.Qc5#
    • 1...Bb2
      • 2.Qc5#
    • 1...Bb4
      • 2.Sc4#
    • 1...Bc5
      • 2.Qxc5#
    • 1...Sg6
      • 2.Sf7#
    • 1...Sf7+
      • 2.Sxf7#
  • Keys
    • 1.Qa7!
      • 1...Sf7+
        • 2.Sxf7#
      • 1...Kxd6
        • 2.e5#
      • 1...Rxe4
        • 2.Sc4#
      • 1...Bxd6
        • 2.Qg7#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Rb4
        • 2.Qc5#
      • 1...Rc4
        • 2.Sxc4#
      • 1...Rd4
        • 2.Qe7#
      • 1...Bc1
        • 2.Qc5#
      • 1...Bb2
        • 2.Qc5#
      • 1...Bb4
        • 2.Sc4#
      • 1...Sg6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);S_CUTB(a)::QAR2(B)
    • R(b);N_GUARD::S(G),XR(b)
    • R(b);N_GUARD,P_SPINR(b),XP(C)::S(G)
    • B(a);N_GUARD,P_PINS(D)::QAR2(B)
    • B(a);N_GUARD::QAR2(B)
    • B(a);S_CUTR(b)::S(G)
    • B(a);N_GUARD::QAR2(B),XB(a)
    • S(e);N_GUARD::S(G)
    • S(e);CHECK,N_GUARD::S(G),XS(e)
  • Actual
    • Q(B);
    • Vars
      • S(e);CHECK,N_GUARD::S(G),XS(e)
      • K(d);OGATE,S_FLIGHT,XS(G)::P(C)
      • R(b);N_GUARD,P_SPINR(b),XP(C)::S(G)
      • B(a);SBLOCK,XS(G)::QAB(B)
      • B(a);N_GUARD::QAR2(B),XB(a)
      • R(b);S_CUTB(a)::QAR2(B)
      • R(b);N_GUARD::S(G),XR(b)
      • R(b);SBLOCK::QAR2(B)
      • B(a);N_GUARD,P_PINS(D)::QAR2(B)
      • B(a);N_GUARD::QAR2(B)
      • B(a);S_CUTR(b)::S(G)
      • S(e);N_GUARD::S(G)
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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).