MESON Chess Problem Database

Problem Display
PID: 21713 (8/1bQ1B1qN/8/4npp1/r3k1p1/4r3/B2RN1P1/3K4 w - - 0 1)

Watney, Charles Gold

Hampshire Telegraph and Post, 1920

8/1bQ1B1qN/8/4npp1/r3k1p1/4r3/B2RN1P1/3K4

#2

8 + 9

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Sxf6#
    • 1...Qf8
      • 2.Sxg5#
    • 1...Qh8
      • 2.Sxg5#
    • 1...Qf7
      • 2.Sxg5#
    • 1...Qg8
      • 2.Sf6#
    • 1...Rxa2
      • 2.Rd4#
    • 1...Ra3
      • 2.Rd4#
    • 1...Rd4
      • 2.Rxd4#
    • 1...Ra5
      • 2.Rd4#
    • 1...Ra6
      • 2.Rd4#
    • 1...Ra7
      • 2.Rd4#
    • 1...Ra8
      • 2.Rd4#
    • 1...Bd5
      • 2.Bxd5#
    • 1...Ba6
      • 2.Bd5#
    • 1...Bc8
      • 2.Bd5#
    • 1...Sf3
      • 2.Sg3#
    • 1...Sc6
      • 2.Bd5#
    • 1...Sg6
      • 2.Sxg5#
  • Tries
    • 1.Qxe5+?
      • 1...Qxe5
        • 2.Sxg5#
      • 1...Kxe5!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Qxe5#
      • 1...Qxf6
        • 2.Sxf6#
      • 1...Qxc7
        • 2.Sxg5#
      • 1...Qe7
        • 2.Sxg5#
      • 1...Ra5
        • 2.Rd4#
      • 1...Sd3
        • 2.Sc3#
      • 1...Sf3
        • 2.Sg3#
      • 1...Sc4
        • 2.Rd4#
      • 1...Sc6
        • 2.Bd5#
      • 1...Sg6
        • 2.Sxg5#
      • 1...Sd7
        • 2.Qxb7#
      • 1...Sf7
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 13
  • Sets
    • Q(i);N_GUARD::S(H),XQ(i)
    • Q(i);N_GUARD::S(H),XP(g)
    • Q(i);N_GUARD::S(H)
    • R(b);N_GUARD,XB(B)::R1(C)
    • R(b);N_GUARD::R1(C)
    • R(b);N_GUARD,P_PINR(C)::R1(C),XR(b)
    • B(h);N_GUARD::B(B),XB(h)
    • B(h);N_GUARD::B(B)
    • S(e);S_CUTR(a)::S(D)
    • S(e);S_CUTB(h)::B(B)
    • S(e);S_CUTQ(i)::S(H),XP(g)
  • Tries
    • Try
      • Q(F);CHECK,XS(e)
      • Vars
        • Q(i);SBLOCK,XQ(F)::S(H),XP(g)
      • Refutation
        • K(c);P-FLIGHT,XQ(F)
  • Actual
    • B(G);
    • Threat
      • QAR1(F),XS(e)
    • Vars
      • Q(i);XB(G)::S(H),XQ(i)
      • Q(i);N_GUARD,XQ(F)::S(H),XP(g)
      • Q(i);N_GUARD::S(H),XP(g)
      • R(b);N_GUARD::R1(C)
      • S(e);S_CUTR(a)::S(D)
      • S(e);S_CUTR(b)::R1(C)
      • S(e);S_CUTB(h)::B(B)
      • S(e);S_CUTQ(i)::S(H),XP(g)
      • S(e);N_GUARD,S_CUTQ(i)::QAB(F),XB(h)
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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).