MESON Chess Problem Database

Problem Display
PID: 661 (6K1/6p1/7b/4Pk2/2Q2n1P/2B3R1/5nP1/5R2 w - - 0 1)

Mansfield, Comins

2nd Prize, British Chess Magazine, 1922

6K1/6p1/7b/4Pk2/2Q2n1P/2B3R1/5nP1/5R2

#2

8 + 5

3360 Simple Two-move Themes 1924
4797 A Genius of the Two-mover 1936
371 The Chess Review 1936
15 British Chess Magazine 1993
3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Rxg5#
    • 1...Se4
      • 2.Qc8#
    • 1...Se2
      • 2.Qg4#
    • 1...Sxg2
      • 2.Qg4#
    • 1...Sd3
      • 2.Qg4#
    • 1...Sh3
      • 2.Qg4#
    • 1...Sd5
      • 2.Qg4#
    • 1...Sh5
      • 2.Qg4#
    • 1...Se6
      • 2.Qg4#
    • 1...Sg6
      • 2.Qg4#
  • Keys
    • 1.Rg6!
      • 1...Kxg6
        • 2.Qf7#
      • 1...Sxg2
        • 2.Qg4#
      • 1...Sxg6
        • 2.g4#
      • 1...Bg5
        • 2.Rxg5#
      • 1...Sd1
        • 2.Qd3#
      • 1...Sh1
        • 2.Qd3#
      • 1...S2d3
        • 2.Qxd3#
      • 1...S2h3
        • 2.Qd3#
      • 1...Se4
        • 2.Qe6#
      • 1...Sg4
        • 2.Qd3#
      • 1...Se2
        • 2.Qg4#
      • 1...S4d3
        • 2.Qg4#
      • 1...S4h3
        • 2.Qg4#
      • 1...Sd5
        • 2.Qg4#
      • 1...Sh5
        • 2.Qg4#
      • 1...Se6
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(d);N_GUARD::R1(D),XB(d)
    • S(a);P_SPINS(b),SBLOCK::QAB(E)
    • S(b);OGATE,P_SPINS(a)::QAB1(E)
    • S(b);OGATE,P_SPINS(a),XP(B)::QAB1(E)
    • S(b);OGATE,P_SPINS(a),SBLOCK::QAB1(E)
  • Actual
    • R(D);
    • Vars
      • K(c);S_FLIGHT,XR(D)::QAB1(E)
      • S(b);OGATE,P_SPINS(a),XP(B)::QAB1(E)
      • S(b);P_SPINS(a),SBLOCK,XR(D)::P(B)
      • B(d);N_GUARD::R1(D),XB(d)
      • S(a);N_GUARD,P_SPINS(b)::QAB(E)
      • S(a);N_GUARD,P_SPINS(b)::QAB(E),XS(a)
      • S(a);P_SPINS(b),SBLOCK::QAB1(E)
      • S(b);OGATE,P_SPINS(a)::QAB1(E)
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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).