MESON Chess Problem Database

Problem Display
PID: 222421 (2K5/2N5/1k6/2r5/3Q1p2/5P2/3p4/3B4 w - - 0 1)

Shinkman, William Anthony

Nashville Daily American, 1884

2K5/2N5/1k6/2r5/3Q1p2/5P2/3p4/3B4

#2

5 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qxc5#
    • 1...Kc6
      • 2.Qf6#
    • 1...Ka7
      • 2.Qxc5#
  • Tries
    • 1.Kb8?
      • 1...Ka5
        • 2.Qxc5#
      • 1...Kc6!
    • 1.Qf2?
      • 1...Ka5
        • 2.Qxc5#
      • 1...Ka7
        • 2.Qxc5#
      • 1...Kc6!
    • 1.Qe3?
      • 1...Ka5
        • 2.Qxc5#
      • 1...Kc6
        • 2.Qe6#
      • 1...Ka7
        • 2.Qxc5#
      • 1...fxe3!
    • 1.Qd6+?
      • 1...Ka5
        • 2.Qxc5#
      • 1...Ka7
        • 2.Qxc5#
        • 2.Qa6#
      • 1...Rc6!
  • Keys
    • 1.Qg1!
      • 1...Ka5
        • 2.Qxc5#
      • 1...Kc6
        • 2.Qg6#
      • 1...Ka7
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINR(c),S_FLIGHT::QAR2(C),XR(c)
    • K(d);N_PINS(D),N_SPINR(c),P-FLIGHT::QAR(C)
    • K(d);S_FLIGHT::QAB(C),XR(c)
  • Tries
    • Try
      • K(E);N_SPINS(D),P-FLIGHT
      • Vars
        • K(d);N_SPINR(c),S_FLIGHT::QAR2(C),XR(c)
      • Refutation
        • K(d);N_SPINR(c),P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(d);N_SPINR(c),S_FLIGHT::QAR2(C),XR(c)
        • K(d);S_FLIGHT::QAB(C),XR(c)
      • Refutation
        • K(d);N_PINS(D),N_SPINR(c),P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(d);N_SPINR(c),S_FLIGHT::QAR2(C),XR(c)
        • K(d);N_PINS(D),N_SPINR(c),P-FLIGHT::QAR2(C)
        • K(d);S_FLIGHT::QAB(C),XR(c)
      • Refutation
        • P(b);N_SPINR(c),XQ(C)
    • Try
      • Q(C);CHECK,N_PINR(c)
      • Vars
        • K(d);S_FLIGHT::QAR2(C),XR(c)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • Q(C);
    • Vars
      • K(d);N_SPINR(c),S_FLIGHT::QAR2(C),XR(c)
      • K(d);N_PINS(D),N_SPINR(c),P-FLIGHT::QAR(C)
      • K(d);S_FLIGHT::QAB(C),XR(c)
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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).