MESON Chess Problem Database

Problem Display
PID: 103711 (1B6/4p2B/2prp3/5p1R/2Pk1n2/3P3Q/N7/3KN3 w - - 0 1)

Rowland, Thomas B

Land and Water, 1884

1B6/4p2B/2prp3/5p1R/2Pk1n2/3P3Q/N7/3KN3

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Ba7#
  • Tries
    • 1.Sc2+?
      • 1...Kc5
        • 2.Ba7#
      • 1...Ke5!
    • 1.Qh4?
      • 1...Kc5
        • 2.Ba7#
      • 1...Ke5
        • 2.Sf3#
      • 1...Rd5
        • 2.Qf2#
      • 1...Rd7
        • 2.Qf2#
      • 1...Rd8
        • 2.Qf2#
      • 1...c5
        • 2.Qxf4#
      • 1...e5
        • 2.Qf2#
      • 1...Ke3!
  • Keys
    • 1.Qg4!
      • 1...Ke3
        • 2.Qg1#
      • 1...Kc5
        • 2.Ba7#
      • 1...Ke5
        • 2.Qg7#
      • 1...fxg4
        • 2.Sc2#
      • 1...Rd5
        • 2.Qg1#
      • 1...Rd7
        • 2.Qg1#
      • 1...Rd8
        • 2.Qg1#
      • 1...c5
        • 2.Qxf4#
      • 1...e5
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(a);P_PINP(D),P_SPINP(c),S_FLIGHT::B(I)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P_PINP(D),P_SPINP(c),S_FLIGHT::B(I)
      • Refutation
        • K(a);P_PINP(D),P_SPINP(c),P_SPINR(e),S_FLIGHT
    • Try
      • Q(E);P_PINS(b)
      • Vars
        • K(a);N_SPINS(b),P_PINP(D),P_SPINP(c),S_FLIGHT::B(I)
        • K(a);N_SPINS(b),P_PINP(D),P_SPINP(c),P_SPINR(e),S_FLIGHT::S(B)
        • R(e);::QAB(E)
        • P(d);SBLOCK::QAR2(E),XS(b)
        • P(f);SBLOCK::QAB(E)
      • Refutation
        • K(a);N_SPINS(b),P_PINP(D),S_FLIGHT
  • Actual
    • Q(E);P_PINS(b)
    • Vars
      • K(a);N_SPINS(b),P_PINP(D),S_FLIGHT::QAB(E)
      • K(a);N_SPINS(b),P_PINP(D),P_SPINP(c),S_FLIGHT::B(I)
      • K(a);N_SPINS(b),P_PINP(D),P_SPINP(c),P_SPINR(e),S_FLIGHT::QAB(E)
      • P(c);N_SPINS(b),XQ(E)::S(B)
      • R(e);::QAB(E)
      • P(d);SBLOCK::QAR2(E),XS(b)
      • P(f);SBLOCK::QAB(E)
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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).