MESON Chess Problem Database

Problem Display
PID: 194151 (3bN3/1p2pn2/1pP5/1p1k2n1/3P1P2/1K6/2Q1R3/3R4 w - - 0 1)

Meschick, AG

Brisbane Courier, 1917

3bN3/1p2pn2/1pP5/1p1k2n1/3P1P2/1K6/2Q1R3/3R4

#2

8 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Qe4#
    • 1...Sh3
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Se6
      • 2.Qe4#
    • 1...Sh7
      • 2.Qe4#
    • 1...Se5
      • 2.Rxe5#
    • 1...Sd6
      • 2.Re5#
    • 1...Sh6
      • 2.Re5#
    • 1...Sh8
      • 2.Re5#
    • 1...b4
      • 2.Qc4#
  • Tries
    • 1.fxg5?
      • threat
        • 2.Qe4#
      • 1...Sxg5
        • 2.Re5#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sd6
        • 2.Re5#
      • 1...e5!
  • Keys
    • 1.Re6!
      • 1...Kxe6
        • 2.d5#
      • 1...Sxe6
        • 2.Qg2#
      • 1...bxc6
        • 2.Qxc6#
      • 1...Bc7
        • 2.Sxc7#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sh3
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sh7
        • 2.Qe4#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sd6
        • 2.Re5#
      • 1...Sh6
        • 2.Re5#
      • 1...Sh8
        • 2.Re5#
        • 2.Qf5#
      • 1...b4
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD::QAB1(B)
    • S(c);N_GUARD::QAB1(B),XS(c)
    • S(g);N_GUARD::R1(C),XS(g)
    • S(g);N_GUARD::R1(C)
    • P(a);N_GUARD::QAB1(B)
  • Tries
    • Try
      • P(F);XS(c)
      • Threat
        • QAB1(B)
      • Vars
        • S(g);N_GUARD,XP(F)::R1(C)
        • S(g);N_GUARD::R1(C),XS(g)
        • S(g);N_GUARD::R1(C)
      • Refutation
        • P(f);
  • Actual
    • R(C);
    • Vars
      • K(b);OGATE,S_FLIGHT,XR(C)::P(E)
      • S(c);N_GUARD,SBLOCK,XR(C)::QAB(B)
      • P(e);OGATE,XP(G)::QAB1(B),XP(e)
      • B(h);N_GUARD::S(H),XB(h)
      • S(c);N_GUARD::QAB1(B)
      • S(c);N_GUARD::QAB1(B),XS(c)
      • S(g);N_GUARD::R1(C),XS(g)
      • S(g);N_GUARD::R1(C)
      • P(a);N_GUARD::QAB1(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).