MESON Chess Problem Database

Problem Display
PID: 51119 (8/1K2p3/1B1b1r2/1p2rR2/p2pk2N/R2NP1pp/2B4q/1b2Q3 w - - 0 1)

Clift, CE

Manchester Guardian, 1950

8/1K2p3/1B1b1r2/1p2rR2/p2pk2N/R2NP1pp/2B4q/1b2Q3

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sf2#
      • 2.Sxc5#
    • 1...Rd5
      • 2.Sf2#
      • 2.Sc5#
    • 1...Ree6
      • 2.Sf2#
      • 2.Sc5#
    • 1...Bxa3
      • 2.Rxe5#
    • 1...Bb4
      • 2.Rxe5#
    • 1...Bc5
      • 2.Rxe5#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qxd4#
      • 1...Kxe3
        • 2.Sc1#
      • 1...Kd5
        • 2.Sf4#
      • 1...dxe3
        • 2.Qd4#
      • 1...Rd5
        • 2.Sf2#
        • 2.Sc5#
      • 1...Bc5
        • 2.Rxe5#
      • 1...dxc3!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qxd4#
      • 1...Kxe3
        • 2.Sc1#
      • 1...Kd5
        • 2.Sf4#
      • 1...Bxb4
        • 2.Rxe5#
      • 1...Rd5
        • 2.Sf2#
        • 2.Sc5#
      • 1...Bc5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(j);N_GUARD,XR(C)::R1(G),XR(i)
    • B(j);N_GUARD::R1(G),XR(i)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(f)
      • Vars
        • K(g);P-FLIGHT,P_SPINP(f),XP(E)::QAR(A)+S(D)
        • K(g);P_SPINR(i),S_FLIGHT::S(D)
        • P(f);XP(E)::QAR1(A)
        • B(j);N_GUARD::R1(G),XR(i)
      • Refutation
        • P(f);XQ(A)
  • Actual
    • Q(A);P_PINP(f)
    • Threat
      • QAR1(A),XP(f)
    • Vars
      • K(g);P-FLIGHT,XP(E)::R(C)+S(D)
      • K(g);N_SPINP(f),P_SPINR(i),S_FLIGHT::S(D)
      • B(j);N_GUARD,N_SPINP(f),XQ(A)::R1(G),XR(i)
      • B(j);N_GUARD::R1(G),XR(i)
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).