MESON Chess Problem Database

Problem Display
PID: 204239 (1nB2Nb1/b2qp3/5p2/1Q1p1kp1/2N5/3K3P/4Rp2/2B5 w - - 0 1)

Daniel, Arthur William

Tidskrift for Schack, 1908

1nB2Nb1/b2qp3/5p2/1Q1p1kp1/2N5/3K3P/4Rp2/2B5

#2

8 + 10

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Qxd5#
    • 1...e5
      • 2.Sd6#
  • Tries
    • 1.Bxd7+?
      • 1...Be6
        • 2.Bxe6#
        • 2.Qxd5#
      • 1...e6
        • 2.Sd6#
        • 2.Qxd5#
      • 1...Sxd7!
    • 1.Qxd7+?
      • 1...Be6
        • 2.Qxe6#
        • 2.Qxd5#
      • 1...e6
        • 2.Sd6#
        • 2.Qxd5#
      • 1...Sxd7!
    • 1.Qxd5+?
      • 1...e5
        • 2.Sd6#
      • 1...Bxd5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Kc3#
      • 1...Be3
        • 2.Kxe3#
      • 1...Bd4
        • 2.Kxd4#
      • 1...d4
        • 2.Rxf2#
      • 1...e5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(g);S_CUTB(j),S_CUTP(h)::QAR2(F),XP(b)
    • P(h);N_GUARD,N_SPINP(b)::S(E)
  • Tries
    • Try
      • B(G);CHECK,XQ(g)
      • Refutation
        • S(i);XB(G)
    • Try
      • Q(F);CHECK,N_PINP(b),XQ(g)
      • Refutation
        • S(i);P_SPINS(i),XQ(F)
    • Try
      • Q(F);CHECK,P_SPINQ(F),XP(b)
      • Vars
        • P(h);P_SPINP(h)::S(E)
      • Refutation
        • B(j);XQ(F)
  • Actual
    • Q(F);N_PINP(b)
    • Threat
      • QAB(F)+K(C)
    • Vars
      • B(f);::QAB(F)+K(C),XB(f)
      • P(b);S_CUTB(f)::R(B),XP(a)
      • P(h);N_GUARD::S(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).