MESON Chess Problem Database

Problem Display
PID: 75979 (8/Q7/4Bp2/2n5/b2kp2K/8/5N2/2B5 w - - 0 1)

Flynn, Father P

The Tablet, 1921

(First published on Sat Apr 2 1921)

8/Q7/4Bp2/2n5/b2kp2K/8/5N2/2B5

#2

5 + 5

5454 Near Snap 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qxc5#
    • 1...Bd1
      • 2.Qa1#
    • 1...Bc2
      • 2.Qa1#
    • 1...Bb3
      • 2.Qa1#
    • 1...Bb5
      • 2.Qa1#
    • 1...Bc6
      • 2.Qa1#
    • 1...Bd7
      • 2.Qa1#
    • 1...Be8
      • 2.Qa1#
    • 1...e3
      • 2.Bb2#
    • 1...f5
      • 2.Qg7#
  • Tries
    • 1.Kg3?
      • 1...Kc3
        • 2.Qxc5#
      • 1...Bd1
        • 2.Qa1#
      • 1...Bc2
        • 2.Qa1#
      • 1...Bb3
        • 2.Qa1#
      • 1...Bb5
        • 2.Qa1#
      • 1...Bc6
        • 2.Qa1#
      • 1...Bd7
        • 2.Qa1#
      • 1...Be8
        • 2.Qa1#
      • 1...e3
        • 2.Bb2#
      • 1...f5
        • 2.Qg7#
      • 1...Ke5!
    • 1.Kh3?
      • 1...Kc3
        • 2.Qxc5#
      • 1...Bd1
        • 2.Qa1#
      • 1...Bc2
        • 2.Qa1#
      • 1...Bb3
        • 2.Qa1#
      • 1...Bb5
        • 2.Qa1#
      • 1...Bc6
        • 2.Qa1#
      • 1...Bd7
        • 2.Qa1#
      • 1...Be8
        • 2.Qa1#
      • 1...e3
        • 2.Bb2#
      • 1...f5
        • 2.Qg7#
      • 1...Ke5!
    • 1.Bf7?
      • 1...Kc3
        • 2.Qxc5#
      • 1...Ke5
        • 2.Qxc5#
      • 1...e3
        • 2.Bb2#
      • 1...Bd1
        • 2.Qa1#
      • 1...Bc2
        • 2.Qa1#
      • 1...Bb3
        • 2.Qa1#
      • 1...Bb5
        • 2.Qa1#
      • 1...Bc6
        • 2.Qa1#
      • 1...Bd7
        • 2.Qa1#
      • 1...Be8
        • 2.Qa1#
      • 1...f5!
  • Keys
    • 1.Bg8!
      • 1...Kc3
        • 2.Qxc5#
      • 1...Ke5
        • 2.Qxc5#
      • 1...e3
        • 2.Bb2#
      • 1...Bd1
        • 2.Qa1#
      • 1...Bc2
        • 2.Qa1#
      • 1...Bb3
        • 2.Qa1#
      • 1...Bb5
        • 2.Qa1#
      • 1...Bc6
        • 2.Qa1#
      • 1...Bd7
        • 2.Qa1#
      • 1...Be8
        • 2.Qa1#
      • 1...f5
        • 2.Qg7#

Anticipated by 143317(1894)

This anticipates 16394(1940)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINS(d),S_FLIGHT::QAR2(E),XS(d)
    • B(a);OGATE::QAB(E)
    • P(c);SBLOCK::B(A)
    • P(e);OGATEB::QAB(E)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(b);N_SPINS(d),S_FLIGHT::QAR2(E),XS(d)
        • B(a);OGATE::QAB(E)
        • P(c);SBLOCK::B(A)
        • P(e);OGATEB::QAB(E)
      • Refutation
        • K(b);N_SPINS(d),S_FLIGHT
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(b);N_SPINS(d),S_FLIGHT::QAR2(E),XS(d)
        • B(a);OGATE::QAB(E)
        • B(a);OGATE,P_PINB(D)::QAB(E)
        • P(c);SBLOCK::B(A)
        • P(e);OGATEB::QAB(E)
      • Refutation
        • K(b);N_SPINS(d),S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(b);N_SPINS(d),S_FLIGHT::QAR2(E),XS(d)
        • P(c);SBLOCK::B(A)
        • B(a);OGATE::QAB(E)
      • Refutation
        • P(e);
  • Actual
    • B(D);
    • Vars
      • K(b);N_SPINS(d),S_FLIGHT::QAR2(E),XS(d)
      • P(c);SBLOCK::B(A)
      • B(a);OGATE::QAB(E)
      • P(e);OGATEB::QAB(E)
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).