MESON Chess Problem Database

Problem Display
PID: 6276 (Q4R2/2rB4/2r3pK/2p5/5N2/2NRbkP1/3n2pP/5nB1 w - - 0 1)

ten Cate, Pieter

Grantham Journal, 1928

Q4R2/2rB4/2r3pK/2p5/5N2/2NRbkP1/3n2pP/5nB1

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sxh2
      • 2.Rxe3#
    • 1...Sxg3
      • 2.Rxe3#
    • 1...g5+
      • 2.Sg6#
  • Tries
    • 1.Qxc6+?
      • 1...Se4
        • 2.Qxe4#
      • 1...Rxc6!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qd1#
      • 1...g5+
        • 2.Se6#
      • 1...Sxh2
        • 2.Rxe3#
      • 1...Sxg3
        • 2.Rxe3#
      • 1...Sb3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,XP(B)::R1(D),XB(d)
    • S(a);N_GUARD,XP(E)::R1(D),XB(d)
    • P(h);CHECK,N_PINS(F)::R(J)+S(F)
  • Tries
    • Try
      • Q(I);CHECK,XR(g)
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(I),XS(b)
      • Refutation
        • R(i);XQ(I)
  • Actual
    • Q(I);N_PINR(g)
    • Threat
      • QAB(I)
    • Vars
      • P(h);CHECK,N_PINS(F)::R(J)+S(F)
      • S(a);N_GUARD,XP(B)::R1(D),XB(d)
      • S(a);N_GUARD,XP(E)::R1(D),XB(d)
      • S(b);N_GUARD::QAB1(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).