MESON Chess Problem Database

Problem Display
PID: 58458 (3R4/1Q2p3/4B3/3p2BN/2Pk1pR1/P2p4/3p2P1/3K4 w - - 0 1)

Wills, W Fred

1st HM., Buffalo Times, 1886

3R4/1Q2p3/4B3/3p2BN/2Pk1pR1/P2p4/3p2P1/3K4

#2

10 + 6

15 British Chess Magazine 1886

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qb4#
    • 1...Ke5
      • 2.Qxd5#
  • Tries
    • 1.Kxd2?
      • threat
        • 2.Qxd5#
      • 1...Kxc4
        • 2.Qxd5#
        • 2.Qb4#
      • 1...Ke4
        • 2.Qxd5#
      • 1...Ke5
        • 2.Qxd5#
      • 1...Kc5!
    • 1.Bxf4?
      • 1...Kc3
        • 2.Bxd2#
      • 1...Kxc4
        • 2.Qb4#
      • 1...Ke4
        • 2.Qxd5#
      • 1...Kc5!
    • 1.Rxf4+?
      • 1...Kc3
        • 2.Qb4#
      • 1...Kc5
        • 2.Bxe7#
        • 2.Rxd5#
        • 2.Qb5#
        • 2.Qc7#
      • 1...Ke5
        • 2.Qxd5#
      • 1...Ke3!
    • 1.Qxd5+?
      • 1...Ke3
        • 2.Qf3#
        • 2.Qd4#
      • 1...Kc3!
    • 1.Qc7?
      • 1...Ke3
        • 2.Qxf4#
      • 1...Ke4
        • 2.Qxf4#
      • 1...Kc3!
  • Keys
    • 1.Sxf4!
      • 1...Kc3
        • 2.Sxd5#
      • 1...Ke3
        • 2.Sh3#
      • 1...Kxc4
        • 2.Qb4#
      • 1...Ke4
        • 2.Sg6#
      • 1...Kc5
        • 2.Sxd3#
      • 1...Ke5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,P-FLIGHT,XP(D)::QAR1(I)
    • K(c);N_SPINP(d),S_FLIGHT::QAR1(I),XP(e)
  • Tries
    • Try
      • K(A);P-FLIGHT,XP(a)
      • Threat
        • QAR1(I),XP(e)
      • Vars
        • K(c);P-FLIGHT::QAB1(I),XP(e)
        • K(c);N_SPINP(d),S_FLIGHT::QAR1(I),XP(e)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT
    • Try
      • B(F);P_PINP(e),XP(d)
      • Vars
        • K(c);N_SPINP(e),S_FLIGHT::B(F),XP(a)
        • K(c);OGATEB,P-FLIGHT,XP(D)::QAR1(I)
        • K(c);P-FLIGHT::QAB1(I),XP(e)
      • Refutation
        • K(c);N_SPINP(e),S_FLIGHT
    • Try
      • R(E);CHECK,P_PINP(e),XP(d)
      • Vars
        • K(c);N_SPINP(e),S_FLIGHT::QAB1(I)
        • K(c);N_SPINP(e),S_FLIGHT::QAR1(I),XP(e)
      • Refutation
        • K(c);N_SPINP(e),S_FLIGHT
    • Try
      • Q(I);CHECK,XP(e)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT
    • Try
      • Q(I);
      • Vars
        • K(c);S_FLIGHT::QAB1(I),XP(d)
        • K(c);P-FLIGHT::QAR1(I),XP(d)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT
  • Actual
    • S(G);P_PINP(e),XP(d)
    • Vars
      • K(c);N_SPINP(e),S_FLIGHT::S(G),XP(e)
      • K(c);N_SPINP(e),S_FLIGHT::B(F)+S(G)
      • K(c);OGATEB,P-FLIGHT,XP(D)::QAR1(I)
      • K(c);P-FLIGHT::R(E)+S(G)
      • K(c);N_SPINP(e),S_FLIGHT::S(G),XP(b)
      • K(c);N_SPINP(e),S_FLIGHT::QAR1(I),XP(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).