MESON Chess Problem Database

Problem Display
PID: 214474 (2K5/6Bp/1Rp1n1Rr/p1k5/2B5/3P1N2/4n2b/1Q6 w - - 0 1)

Witton, Joseph George

Australasian (The), 1880

2K5/6Bp/1Rp1n1Rr/p1k5/2B5/3P1N2/4n2b/1Q6

#2

8 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Bf8#
    • 1...Sf4
      • 2.Bf8#
      • 2.Rbxc6#
    • 1...Sg5
      • 2.Rbxc6#
    • 1...Sc7
      • 2.Rbxc6#
    • 1...Sxg7
      • 2.Rbxc6#
    • 1...Sf8
      • 2.Rbxc6#
    • 1...a4
      • 2.Qb4#
  • Tries
    • 1.Bf8+?
      • 1...Sxf8
        • 2.Rbxc6#
      • 1...Bd6!
    • 1.Rb5+?
      • 1...Kd6
        • 2.Bf8#
      • 1...cxb5!
    • 1.Qb5+?
      • 1...Kd6
        • 2.Bf8#
      • 1...cxb5!
  • Keys
    • 1.Bb2!
      • threat
        • 2.Ba3#
      • 1...Kxb6
        • 2.Bd4#
      • 1...Kd6
        • 2.Ba3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • K(d);P_SPINP(e),P_SPINS(f),S_FLIGHT::B(G)
    • S(f);::R1(E),XP(e)
    • S(f);XB(G)::R1(E),XP(e)
    • P(c);N_GUARD::QAB1(A)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • S(f);XB(G)::R1(E),XP(e)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • R(E);CHECK
      • Vars
        • K(d);P_SPINS(f),S_FLIGHT::B(G)
      • Refutation
        • P(e);XR(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);P_SPINP(e),P_SPINS(f),S_FLIGHT::B(G)
      • Refutation
        • P(e);XQ(A)
  • Actual
    • B(G);
    • Threat
      • B(G)
    • Vars
      • K(d);S_FLIGHT,XR(E)::QAR(A)+B(G),DCHECK
      • K(d);P_SPINP(e),P_SPINS(f),S_FLIGHT::B(G)
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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).