MESON Chess Problem Database

Problem Display
PID: 252597 (n3N3/1bp2p2/4RB2/3k1pp1/pP6/1p3n2/1Q2N3/1B5K w - - 0 1)

Tilsley, WB

HM., Manchester Weekly Times, 1890

(First published on Sat Feb 15 1890)

n3N3/1bp2p2/4RB2/3k1pp1/pP6/1p3n2/1Q2N3/1B5K

#2

8 + 10

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...a3
      • 2.Qxb3#
  • Tries
    • 1.Sxc7+?
      • 1...Kc4
        • 2.Qc3#
      • 1...Sxc7!
    • 1.Qd4+?
      • 1...Kxe6
        • 2.Sg7#
      • 1...Sxd4!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Qc5#
      • 1...Sxe5!
  • Keys
    • 1.Qc2!
      • 1...Kxe6
        • 2.Qxf5#
      • 1...bxc2
        • 2.Ba2#
      • 1...fxe6
        • 2.Qc5#
      • 1...Ba6
        • 2.Qc6#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bc8
        • 2.Qc6#
      • 1...Se1
        • 2.Re5#
      • 1...Sg1
        • 2.Re5#
      • 1...Sd2
        • 2.Re5#
      • 1...Sh2
        • 2.Re5#
      • 1...Sd4
        • 2.Re5#
      • 1...Sh4
        • 2.Re5#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sb6
        • 2.Sxc7#
      • 1...b2
        • 2.Ba2#
      • 1...a3
        • 2.Qxb3#
      • 1...f4
        • 2.Qe4#
      • 1...g4
        • 2.Sf4#
      • 1...c5
        • 2.Rd6#
      • 1...c6
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAB(C),XP(a)
  • Tries
    • Try
      • S(H);CHECK,XP(h)
      • Vars
        • K(d);S_CUTS(j),S_FLIGHT::QAR1(C)
      • Refutation
        • S(j);XS(H)
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);S_CUTS(b),S_FLIGHT,XR(F)::S(H)
      • Refutation
        • S(b);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • S(b);XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(d);N_GUARD,S_CUTS(b),S_FLIGHT,XR(F)::QAB1(C),XP(e)
      • P(a);OGATEB,XQ(C)::B(A)
      • P(i);SBLOCK,XR(F)::QAR1(C)
      • B(g);N_GUARD::QAB1(C)
      • B(g);N_GUARD::QAB1(C),XB(g)
      • S(b);N_GUARD::R1(F)
      • S(b);N_GUARD::R1(F),XS(b)
      • S(j);N_GUARD::S(H),XP(h)
      • P(a);OGATEB::B(A)
      • P(c);N_GUARD::QAB(C),XP(a)
      • P(e);N_GUARD::QAB1(C)
      • P(f);N_GUARD::S(D)
      • P(h);N_GUARD::R1(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).