MESON Chess Problem Database

Problem Display
PID: 1108 (5R2/4N2n/N1Pk4/3p4/6Q1/b3B3/b7/7K w - - 0 1)

Healey, Frank

The Westminster Papers, 1873

5R2/4N2n/N1Pk4/3p4/6Q1/b3B3/b7/7K

#2

7 + 5

1693 English Chess Problems 1876
3644 200 Chess Problems (Healey) 1908

SOLUTION

  • SOUND
  • Tries
    • 1.Sc8+?
      • 1...Ke5
        • 2.Bd4#
        • 2.Qf5#
      • 1...Kxc6!
    • 1.Bc5+?
      • 1...Ke5
        • 2.Sg6#
        • 2.Qe2#
        • 2.Qf5#
      • 1...Bxc5!
    • 1.Rd8+?
      • 1...Ke5
        • 2.Bd4#
        • 2.Qf5#
      • 1...Kxe7!
    • 1.Qe4?
      • threat
        • 2.Bf4#
        • 2.Rd8#
      • 1...Sxf8
        • 2.Bf4#
      • 1...Bc1
        • 2.Bc5#
        • 2.Rd8#
      • 1...Bb2
        • 2.Bc5#
        • 2.Rd8#
      • 1...Sf6
        • 2.Bf4#
        • 2.Rxf6#
      • 1...dxe4!
    • 1.Qg6+?
      • 1...Kxe7
        • 2.Re8#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Ke5!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Bf4#
      • 1...Ke5
        • 2.Bc5#
      • 1...Ke6
        • 2.Bf4#
        • 2.Bc5#
      • 1...Kxe7
        • 2.Bc5#
      • 1...Bc1
        • 2.Bc5#
      • 1...Bb2
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(d);P-FLIGHT,XP(E)
    • Try
      • B(B);CHECK
      • Refutation
        • B(b);XB(B)
    • Try
      • R(G);CHECK
      • Refutation
        • K(d);S_FLIGHT,XS(F)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);XR(G)::B(B)
      • Refutation
        • P(c);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(F)::R1(G)
        • S(e);N_GUARD,P_SPINS(e)::QAR2(C),XS(e)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • B(B)
    • Vars
      • K(d);S_FLIGHT::QAR(C)+B(B)
      • K(d);S_FLIGHT,XS(F)::QAR(C)+B(B),DCHECK
      • B(b);N_GUARD::B(B)
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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).