MESON Chess Problem Database

Problem Display
PID: 235756 (8/2Q2p2/4pB2/3p2R1/1p1Pp1P1/1P2k3/3N1p2/1K3B2 w - - 0 1)

Taylor, Jesse Paul

English Mechanic and World of Science, 1881

(First published on Fri Apr 1 1881)

8/2Q2p2/4pB2/3p2R1/1p1Pp1P1/1P2k3/3N1p2/1K3B2

#2

9 + 7

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd2
      • 2.Qc1#
  • Tries
    • 1.Kb2?
      • 1...Kxd2
        • 2.Qc1#
      • 1...e5!
    • 1.Rxd5?
      • threat
        • 2.Bg5#
      • 1...Kxd2
        • 2.Qc1#
      • 1...exd5!
    • 1.Rh5?
      • 1...Kxd2
        • 2.Qc1#
      • 1...e5!
    • 1.Rg7?
      • 1...Kxd2
        • 2.Qc1#
      • 1...e5!
    • 1.Rg8?
      • 1...Kxd2
        • 2.Qc1#
      • 1...e5!
  • Keys
    • 1.Re5!
      • 1...Kxd2
        • 2.Qc1#
      • 1...Kxd4
        • 2.Rxe4#
      • 1...Kf4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(I)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(I)
      • Refutation
        • P(f);
    • Try
      • R(G);XP(e)
      • Threat
        • B(H)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(I)
      • Refutation
        • P(f);XR(G)
    • Try
      • R(G);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(I)
      • Refutation
        • P(f);
    • Try
      • R(G);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(I)
      • Refutation
        • P(f);
    • Try
      • R(G);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(I)
      • Refutation
        • P(f);
  • Actual
    • R(G);P_PINP(d)
    • Vars
      • K(b);N_SPINP(d),OGATEB,S_FLIGHT,XS(C)::QAB1(I)
      • K(b);N_SPINP(d),S_FLIGHT,XP(E)::B(H)+R(G),DCHECK,XP(d)
      • K(b);N_SPINP(d),S_FLIGHT::QAB(I)+R(G),DCHECK,XP(d)
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).