MESON Chess Problem Database

Problem Display
PID: 378 (8/8/3pr3/1KPk1p2/pP6/1Np2NB1/Q3RP2/br5B w - - 0 1)

Mansfield, Comins

The Observer, 1937

(First published on Sun Jan 24 1937)

8/8/3pr3/1KPk1p2/pP6/1Np2NB1/Q3RP2/br5B

#2

10 + 8

3550 Complete Mansfield/II 1997
15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Sxa1#
      • 2.Sxc1#
      • 2.Sbd2#
      • 2.Sbd4#
      • 2.Sa5#
    • 1...Rd1
      • 2.Sxa1#
      • 2.Sc1#
      • 2.Sbd2#
      • 2.Sbd4#
      • 2.Sa5#
    • 1...Re1
      • 2.Sxa1#
      • 2.Sc1#
      • 2.Sbd2#
      • 2.Sbd4#
      • 2.Sa5#
    • 1...Rf1
      • 2.Sxa1#
      • 2.Sc1#
      • 2.Sbd2#
      • 2.Sbd4#
      • 2.Sa5#
    • 1...Rg1
      • 2.Sxa1#
      • 2.Sc1#
      • 2.Sbd2#
      • 2.Sbd4#
      • 2.Sa5#
    • 1...Rxh1
      • 2.Sxa1#
      • 2.Sc1#
      • 2.Sbd2#
      • 2.Sbd4#
      • 2.Sa5#
    • 1...Rb2
      • 2.Se5#
    • 1...Rf6
      • 2.Se1#
      • 2.Sg1#
    • 1...Rg6
      • 2.Se1#
      • 2.Sg1#
    • 1...Bb2
      • 2.Sa1#
      • 2.Sc1#
      • 2.Sbd2#
      • 2.Sbd4#
      • 2.Sa5#
    • 1...axb3
      • 2.Qa8#
  • Tries
    • 1.Rd2+?
      • 1...Ke4
        • 2.Se1#
        • 2.Sg1#
        • 2.Sg5#
        • 2.Rd4#
        • 2.Qc2#
      • 1...cxd2!
  • Keys
    • 1.Rb2!
      • threat
        • 2.Sbd2#
      • 1...Ke4
        • 2.Se1#
      • 1...Rxb2
        • 2.Se5#
      • 1...axb3
        • 2.Qa8#
      • 1...dxc5
        • 2.Sxc5#
      • 1...Re4
        • 2.Sbd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD::B(A)+S(F)
    • P(d);OGATE,P_SPINP(d),XS(E)::QAB(B)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • P(c);XR(C)
  • Actual
    • R(C);
    • Threat
      • QAB(B)+S(E)
    • Vars
      • K(e);S_FLIGHT::B(A)+S(F)
      • R(b);N_GUARD,XR(C)::B(A)+S(F)
      • P(d);OGATE,P_SPINP(d),XS(E)::QAB(B)
      • P(g);XP(J)::QAB(B)+S(E),XP(g)
      • R(h);SBLOCK::QAB(B)+S(E)
HTML5 logo

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).