MESON Chess Problem Database

Problem Display
PID: 55574 (8/b1p5/nqrpp3/3k1P1R/P3N3/1PP1pPK1/1B1N2B1/3R4 w - - 0 1)

Mansfield, Comins

Land og Folk, 1976

8/b1p5/nqrpp3/3k1P1R/P3N3/1PP1pPK1/1B1N2B1/3R4

#2

12 + 9

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.f6#
    • 1...Sc5
      • 2.c4#
  • Tries
    • 1.Sb1+?
      • 1...Ke5
        • 2.f4#
        • 2.f6#
      • 1...Qd4!
    • 1.Sf1+?
      • 1...Ke5
        • 2.f4#
        • 2.f6#
      • 1...Qd4!
    • 1.Sf6+?
      • 1...Kc5
        • 2.Sde4#
      • 1...Ke5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.fxe6#
      • 1...Kxc5
        • 2.Se4#
      • 1...Ke5
        • 2.c4#
      • 1...Qxc5
        • 2.f4#
      • 1...Rxc5
        • 2.f4#
      • 1...Sxc5
        • 2.c4#
      • 1...dxc5
        • 2.Sc4#
      • 1...exf5
        • 2.Rxf5#
      • 1...e5
        • 2.Sde4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::R(L)+P(K)
    • S(c);S_CUTR(e)::P(F)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • Q(d);P_SPINQ(d)
    • Try
      • S(C);CHECK
      • Refutation
        • Q(d);P_SPINQ(d)
    • Try
      • S(J);CHECK
      • Vars
        • K(b);P-FLIGHT::S(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(J);
    • Threat
      • R(L)+P(K),XP(g)
    • Vars
      • K(b);P-FLIGHT,XS(J)::S(C)
      • K(b);P-FLIGHT::B(B)+P(F)
      • Q(d);SBLOCK,XS(J)::B(D)+P(G)
      • R(e);SBLOCK,XS(J)::B(D)+P(G)
      • S(c);SBLOCK,XS(J)::P(F)
      • P(f);SBLOCK,XS(J)::R(A)+S(C)
      • P(g);OGATE,P_SPINP(g),XP(K)::R(L),XP(g)
      • P(g);SBLOCK::R(A)+S(C)
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).