MESON Chess Problem Database

Problem Display
PID: 223223 (8/B4p2/B4r2/1RP2pP1/Q3N2P/5k1p/5N1P/7K w - - 0 1)

Barnett, Bernard

Nashville Daily American, 1886

8/B4p2/B4r2/1RP2pP1/Q3N2P/5k1p/5N1P/7K

#2

11 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Rb3#
  • Tries
    • 1.Qb3+?
      • 1...Kf4
        • 2.Qg3#
      • 1...Ke2!
    • 1.Qa3+?
      • 1...Kf4
        • 2.Qg3#
      • 1...Ke2!
  • Keys
    • 1.c6!
      • 1...Ke2
        • 2.Qd1#
      • 1...Kf4
        • 2.Sd2#
      • 1...Rxc6
        • 2.Rxf5#
      • 1...fxe4
        • 2.Qxe4#
      • 1...Rd6
        • 2.Rxf5#
      • 1...Re6
        • 2.Rxf5#
      • 1...Rg6
        • 2.Rxf5#
      • 1...Rh6
        • 2.Rxf5#
      • 1...f4
        • 2.Rb3#
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • P(c);SBLOCK::R(G)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • P(H);
    • Vars
      • K(a);S_FLIGHT::QAB1(D)
      • K(a);P-FLIGHT::QAR(D)+S(E)
      • R(d);N_GUARD,XP(H)::R(G),XP(c)
      • P(c);OGATE,XS(E)::QAB1(D),XP(c)
      • R(d);N_GUARD::R(G),XP(c)
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).