MESON Chess Problem Database

Problem Display
PID: 56083 (N1Q2B2/2bp4/4kpb1/4pRp1/2R5/2P5/2B5/1K6 w - - 0 1)

Mansfield, Comins

Canadian Chess Chat, 1981

N1Q2B2/2bp4/4kpb1/4pRp1/2R5/2P5/2B5/1K6

#2

8 + 7

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Bf7
      • 2.Sxc7#
  • Tries
    • 1.Rxc7?
      • threat
        • 2.Qxd7#
      • 1...Kd5
        • 2.Qxd7#
      • 1...Kf7
        • 2.Bb3#
      • 1...Be8!
    • 1.Rxf6+?
      • 1...Kd5
        • 2.Rc5#
      • 1...Kxf6!
    • 1.Qe8+?
      • 1...Kd5
        • 2.Rc5#
      • 1...Bxe8!
  • Keys
    • 1.Bb3!
      • threat
        • 2.Rf4#
      • 1...Bxf5+
        • 2.Re4#
      • 1...Kd5
        • 2.Sxc7#
      • 1...Kxf5
        • 2.Qxd7#
      • 1...Kf7
        • 2.Rxc7#
      • 1...e4
        • 2.Rcc5#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(e);SBLOCK::S(F),XB(f)
  • Tries
    • Try
      • R(D);XB(f)
      • Threat
        • QAB1(G),XP(g)
      • Vars
        • K(c);N_SPINP(g),P_SPINP(a),S_FLIGHT::QAR2(G),XP(g)
        • K(c);N_SPINP(g),P_SPINP(d),S_FLIGHT::B(B)
      • Refutation
        • B(e);
    • Try
      • R(E);CHECK,P_SPINB(B),XP(d)
      • Vars
        • K(c);N_SPINP(g),S_FLIGHT::R1(D)
      • Refutation
        • K(c);N_SPINP(g),P-FLIGHT,XR(E)
    • Try
      • Q(G);CHECK,N_PINP(g)
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::R1(D)
      • Refutation
        • B(e);XQ(G)
  • Actual
    • B(B);P_SPINR(E)
    • Threat
      • B(B)+R(D)
    • Vars
      • B(e);CHECK,SBLOCK,XR(E)::B(B)+R(D)
      • K(c);N_SPINP(g),P_SPINP(a),S_FLIGHT::S(F),XB(f)
      • K(c);S_FLIGHT,XR(E)::QAB(G),XP(g)
      • K(c);N_SPINP(g),P_SPINP(d),S_FLIGHT::B(B)+R(D),XB(f)
      • P(a);N_PINR(E)::B(B)+R(D)
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).