MESON Chess Problem Database

Problem Display
PID: 152355 (2b2RQ1/2P4K/B5p1/2p5/r3k3/2p5/4N2B/3n1N2 w - - 0 1)

Bolus, Andrew

Pen & Pencil, 1888

(First published on Sat Oct 6 1888)

2b2RQ1/2P4K/B5p1/2p5/r3k3/2p5/4N2B/3n1N2

#2

8 + 7

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qc4#
    • 1...Ra2
      • 2.Qc4#
    • 1...Ra3
      • 2.Qc4#
    • 1...Rc4
      • 2.Qxc4#
    • 1...Ra5
      • 2.Qc4#
    • 1...Rxa6
      • 2.Qc4#
    • 1...Be6
      • 2.Qxe6#
    • 1...Bb7
      • 2.Qe6#
  • Tries
    • 1.Sxc3+?
      • 1...Kd4
        • 2.Qg7#
        • 2.Qh8#
      • 1...Sxc3!
    • 1.Bc4?
      • threat
        • 2.Qd5#
      • 1...Rxc4
        • 2.Qxc4#
      • 1...Be6
        • 2.Qxe6#
      • 1...Bb7
        • 2.Qe6#
        • 2.Qxg6#
      • 1...Se3!
    • 1.Qxg6+?
      • 1...Bf5
        • 2.Qxf5#
      • 1...Kd5!
  • Keys
    • 1.Rf5!
      • threat
        • 2.Qd5#
      • 1...Kxf5
        • 2.Qxg6#
      • 1...Bxf5
        • 2.Qa8#
      • 1...gxf5
        • 2.Qg2#
      • 1...Rd4
        • 2.Seg3#
      • 1...Be6
        • 2.Qxe6#
      • 1...Bb7
        • 2.Qe6#
      • 1...Se3
        • 2.Sfg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • R(c);N_GUARD::QAR2(H)
    • R(c);N_GUARD::QAR2(H),XR(c)
    • R(c);N_GUARD,XB(D)::QAR2(H)
    • B(g);N_GUARD::QAR2(H),XB(g)
    • B(g);N_GUARD::QAR2(H)
  • Tries
    • Try
      • S(B);CHECK,XP(b)
      • Refutation
        • S(a);XS(B)
    • Try
      • B(D);
      • Threat
        • QAB1(H)
      • Vars
        • R(c);OGATE,XB(D)::QAR2(H),XR(c)
        • B(g);N_GUARD::QAR2(H),XB(g)
      • Refutation
        • S(a);
    • Try
      • Q(H);CHECK,XP(f)
      • Vars
        • B(g);N_GUARD,P_PINQ(H),P_SPINB(g)::QAB1(H),XB(g)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(G);
    • Threat
      • QAB1(H)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(G)::QAB1(H),XP(f)
      • B(g);OGATE,SBLOCK,XR(G)::QAB(H)
      • P(f);OGATE,SBLOCK,XR(G)::QAB(H)
      • R(c);SBLOCK::S(B)
      • B(g);N_GUARD::QAR2(H),XB(g)
      • B(g);N_GUARD::QAR2(H)
      • S(a);SBLOCK::S(A)
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).