MESON Chess Problem Database

Problem Display
PID: 55624 (8/2N3bB/4p2p/4Nr1Q/4kpR1/2P5/5P1B/6K1 w - - 0 1)

Mansfield, Comins

4th Comm., KeyStip 18. Ty., 1976-1977

8/2N3bB/4p2p/4Nr1Q/4kpR1/2P5/5P1B/6K1

#2

9 + 6

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Tries
    • 1.Rg2?
      • threat
        • 2.Qe2#
      • 1...f3
        • 2.Rg4#
        • 2.Qxf3#
        • 2.Qg4#
        • 2.Qh4#
      • 1...Kxe5!
    • 1.Rg5?
      • threat
        • 2.Qe2#
      • 1...f3
        • 2.Rg4#
        • 2.Qxf3#
        • 2.Qg4#
        • 2.Qh4#
      • 1...Kxe5!
    • 1.Rxg7?
      • threat
        • 2.Qe2#
      • 1...f3
        • 2.Rg4#
        • 2.Qxf3#
        • 2.Qg4#
        • 2.Qh4#
      • 1...Kxe5!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Qe2#
      • 1...Rg5+
        • 2.Rxg5#
      • 1...Kxe5
        • 2.Rxe6#
      • 1...Rxe5
        • 2.Rxe6#
      • 1...Rxh5
        • 2.Rg5#
      • 1...Rf6
        • 2.Rxf6#
      • 1...Rf7
        • 2.Rf6#
      • 1...Rf8
        • 2.Rf6#
      • 1...f3
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);N_PINP(b)
      • Threat
        • QAR2(G)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XS(F)
    • Try
      • R(E);N_PINP(b)
      • Threat
        • QAR2(G)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XS(F)
    • Try
      • R(E);N_PINP(b),XB(f)
      • Threat
        • QAR2(G)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XS(F)
  • Actual
    • R(E);N_PINP(b),N_PINR(c)
    • Threat
      • QAR2(G)
    • Vars
      • R(c);CHECK,OGATEB::B(I)+R(E),XR(c)
      • K(a);OGATEB,P-FLIGHT,P_SPINP(b),P_SPINR(c),XS(F)::R1(E),XP(d)
      • R(c);OGATEB,XS(F)::B(I)+R(E),XP(d)
      • R(c);OGATEB,XQ(G)::B(I)+R(E)
      • R(c);OGATEB::B(I)+R(E),XR(c)
      • R(c);OGATEB::B(I)+R(E)
      • P(b);OGATEB::R(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).