MESON Chess Problem Database

Problem Display
PID: 21616 (1b1B1n2/7n/1Q5p/1p1pk2P/1Pb2NP1/4pP1N/4p3/4K3 w - - 0 1)

Warton, Thomas Joseph

Falkirk Herald, 1920

1b1B1n2/7n/1Q5p/1p1pk2P/1Pb2NP1/4pP1N/4p3/4K3

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Sd3#
    • 1...Bb3
      • 2.Sd3#
    • 1...Bd3
      • 2.Sxd3#
    • 1...Bd6
      • 2.Qxe3#
    • 1...Ba7
      • 2.Bc7#
    • 1...Bc7
      • 2.Bxc7#
    • 1...Sg5
      • 2.Bf6#
      • 2.Qf6#
    • 1...Sf6
      • 2.Bxf6#
      • 2.Qxf6#
    • 1...Se6
      • 2.Sg6#
    • 1...Sg6
      • 2.Sxg6#
    • 1...Sd7
      • 2.Sg6#
    • 1...d4
      • 2.Qxb8#
  • Tries
    • 1.Sg5?
      • 1...Kxf4
        • 2.Qxb8#
      • 1...Sxg5
        • 2.Qf6#
      • 1...Ba2
        • 2.Sd3#
      • 1...Bb3
        • 2.Sd3#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Bd6
        • 2.Qxe3#
      • 1...Ba7
        • 2.Bc7#
      • 1...Bc7
        • 2.Bxc7#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Se6
        • 2.Sg6#
      • 1...Sg6
        • 2.Sxg6#
      • 1...Sd7
        • 2.Sg6#
      • 1...d4
        • 2.Qxb8#
      • 1...hxg5!
    • 1.Be7?
      • threat
        • 2.Qxe3#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Sg5
        • 2.Bf6#
        • 2.Qf6#
      • 1...Sf6
        • 2.Bxf6#
        • 2.Qxf6#
      • 1...d4
        • 2.Qxb8#
      • 1...Ba7!
  • Keys
    • 1.Sg1!
      • 1...Kxf4
        • 2.Qxb8#
      • 1...Ba2
        • 2.Sd3#
      • 1...Bb3
        • 2.Sd3#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Bd6
        • 2.Qxe3#
      • 1...Ba7
        • 2.Bc7#
      • 1...Bc7
        • 2.Bxc7#
      • 1...Sg5
        • 2.Qf6#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Se6
        • 2.Sg6#
      • 1...Sg6
        • 2.Sxg6#
      • 1...Sd7
        • 2.Sg6#
      • 1...d4
        • 2.Qxb8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::S(E)
    • B(c);N_GUARD::S(E),XB(c)
    • B(i);SBLOCK::QAR2(H),XP(b)
    • B(i);N_GUARD::B(I)
    • B(i);N_GUARD::B(I),XB(i)
    • S(j);N_GUARD::S(E)
    • S(j);N_GUARD::S(E),XS(j)
    • P(e);SBLOCK::QAB(H),XB(i)
  • Tries
    • Try
      • S(C);
      • Vars
        • K(f);S_FLIGHT,XS(E)::QAB(H),XB(i)
        • S(h);N_GUARD,XS(C)::QAB1(H)
        • B(c);N_GUARD::S(E)
        • B(c);N_GUARD::S(E),XB(c)
        • B(i);SBLOCK::QAR2(H),XP(b)
        • B(i);N_GUARD::B(I)
        • B(i);N_GUARD::B(I),XB(i)
        • S(h);N_GUARD::QAB1(H),XS(h)
        • S(j);N_GUARD::S(E)
        • S(j);N_GUARD::S(E),XS(j)
        • P(e);SBLOCK::QAB(H),XB(i)
      • Refutation
        • P(g);XS(C)
    • Try
      • B(I);
      • Threat
        • QAR2(H),XP(b)
      • Vars
        • B(c);N_GUARD::S(E),XB(c)
        • P(e);SBLOCK::QAB(H),XB(i)
      • Refutation
        • B(i);
  • Actual
    • S(C);
    • Vars
      • K(f);S_FLIGHT,XS(E)::QAB(H),XB(i)
      • B(c);N_GUARD::S(E)
      • B(c);N_GUARD::S(E),XB(c)
      • B(i);SBLOCK::QAR2(H),XP(b)
      • B(i);N_GUARD::B(I)
      • B(i);N_GUARD::B(I),XB(i)
      • S(h);N_GUARD::QAB1(H)
      • S(h);N_GUARD::QAB1(H),XS(h)
      • S(j);N_GUARD::S(E)
      • S(j);N_GUARD::S(E),XS(j)
      • P(e);SBLOCK::QAB(H),XB(i)
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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).