MESON Chess Problem Database

Problem Display
PID: 153644 (2N5/bn6/2p5/3k4/1P3Pr1/2P1RRP1/bN3KQ1/r4B2 w - - 0 1)

Guidelli, Giorgio

Good Companions (April), 1916

2N5/bn6/2p5/3k4/1P3Pr1/2P1RRP1/bN3KQ1/r4B2

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg3
      • 2.Rxg3#
    • 1...Rxf4
      • 2.Rxf4#
    • 1...Bb1
      • 2.Bc4#
    • 1...Bc4
      • 2.Bxc4#
    • 1...Bxe3+
      • 2.Rxe3#
    • 1...Sc5
      • 2.Re5#
    • 1...Sd6
      • 2.Se7#
  • Keys
    • 1.Kg1!
      • threat
        • 2.Rf2#
      • 1...Rxf1+
        • 2.Rxf1#
      • 1...Bxe3+
        • 2.Rxe3#
      • 1...Rxg3
        • 2.Rxg3#
      • 1...Rxf4
        • 2.Rxf4#
      • 1...Bb1
        • 2.Bc4#
      • 1...Sc5
        • 2.Re5#
      • 1...Sd6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATE,XP(H)::QAB(D)+R(G),XR(c)
    • R(c);OGATE,XP(J)::QAB(D)+R(G),XR(c)
    • B(b);N_GUARD::B(A)
    • B(b);N_GUARD::B(A),XB(b)
    • B(f);CHECK,OGATE,XR(F)::QAB(D)+R(G),XB(f)
    • S(g);N_PINR(F)::R1(F)
    • S(g);SBLOCK::S(K)
  • Actual
    • K(C);P_SPINB(A),S_FLIGHT
    • Threat
      • QAB(D)+R(G)
    • Vars
      • R(a);CHECK,OGATE,XB(A)::QAB(D)+R(G),XR(a)
      • B(f);CHECK,OGATE,XR(F)::QAB(D)+R(G),XB(f)
      • R(c);OGATE,P_PINQ(D),XP(H)::QAB(D)+R(G),XR(c)
      • R(c);OGATE,XP(J)::QAB(D)+R(G),XR(c)
      • B(b);N_PINB(A)::B(A)
      • S(g);N_PINR(F)::R1(F)
      • S(g);SBLOCK::S(K)
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).