MESON Chess Problem Database

Problem Display
PID: 266967 (4r3/1R1p1r1b/1p6/1R1p4/2k5/p1N1Q1b1/4P3/2KN1B2 w - - 0 1)

Tylor, Christopher MB

The Problemist, 1955

4r3/1R1p1r1b/1p6/1R1p4/2k5/p1N1Q1b1/4P3/2KN1B2

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Rc7#
    • 1...Rf5
      • 2.Qd3#
    • 1...Re4
      • 2.Qd3#
    • 1...Re5
      • 2.Rc7#
    • 1...Be1
      • 2.Rc7#
    • 1...Bf2
      • 2.Rc7#
    • 1...Bh4
      • 2.Rc7#
    • 1...Bc7
      • 2.Rxc7#
    • 1...Bd3
      • 2.Qxd3#
      • 2.exd3#
    • 1...Bg8
      • 2.Qd3#
    • 1...a2
      • 2.Sb2#
  • Tries
    • 1.Rc5+?
      • 1...Kb3
        • 2.Rxb6#
      • 1...Kb4
        • 2.Rxb6#
      • 1...bxc5!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qxd5#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Rf5
        • 2.Qd3#
      • 1...Re5
        • 2.Rc7#
      • 1...Bf4
        • 2.e4#
      • 1...Be4
        • 2.Se3#
      • 1...d4
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • R(g);S_CUTB(b)::R(H)
    • R(g);S_CUTB(h)::QAB1(F)
    • R(i);S_CUTB(h)::QAB1(F)
    • R(i);S_CUTB(b)::R(H)
    • B(b);N_GUARD::R(H)
    • B(b);N_GUARD::R(H),XB(b)
    • B(h);N_GUARD::QAB1(F)
    • P(a);N_GUARD::S(B)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::R(H),XP(e)
        • K(c);P-FLIGHT,P_SPINP(e)::R(H),XP(e)
      • Refutation
        • P(e);XR(G)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F),XP(d)
    • Vars
      • B(h);N_GUARD::QAB1(F),XB(h)
      • R(g);S_CUTB(h)::QAB1(F)
      • R(i);S_CUTB(b)::R(H)
      • B(b);P_PINQ(F),S_CUTR(g)::B(C)+P(D)
      • B(h);S_CUTR(i)::S(B)
      • P(d);SBLOCK::QAB(F)
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).