MESON Chess Problem Database

Problem Display
PID: 218516 (3R4/1Np1rB1b/8/2P1B1pp/1pK1k3/2n4Q/7p/2nN1Rbq w - - 0 1)

Wills, Fred

Leeds Mercury Weekly Supplement, 1881

(First published on Sat Jan 1 1881)

3R4/1Np1rB1b/8/2P1B1pp/1pK1k3/2n4Q/7p/2nN1Rbq

#2

9 + 12

4501 Cincinnati Commercial 1881
15239 Valois Notebooks 1881
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.Qxe3#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bg8
      • 2.Qf5#
  • Tries
    • 1.Sxc3+?
      • 1...Kxe5
        • 2.Qg3#
      • 1...bxc3!
    • 1.Sd6+?
      • 1...Kxe5
        • 2.Qg3#
      • 1...cxd6!
    • 1.Bd5+?
      • 1...Kxe5
        • 2.Qg3#
      • 1...Sxd5!
    • 1.Bg6+?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Bxg6!
    • 1.Rd4+?
      • 1...Kxe5
        • 2.Qg3#
      • 1...Bxd4!
  • Keys
    • 1.Bxc7!
      • 1...Rxc7
        • 2.Qe6#
      • 1...Rxf7
        • 2.Qe6#
      • 1...Bxc5
        • 2.Sxc5#
      • 1...Sxd1
        • 2.Bd5#
      • 1...Re5
        • 2.Sd6#
      • 1...Qg2
        • 2.Qxg2#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Re6
        • 2.Qxe6#
      • 1...Rd7
        • 2.Qe6#
      • 1...Re8
        • 2.Rxe8#
      • 1...Bf2
        • 2.Sxf2#
      • 1...Be3
        • 2.Qxe3#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Bg6
        • 2.Bxg6#
      • 1...Bg8
        • 2.Qf5#
      • 1...S1a2
        • 2.Qd3#
      • 1...S1e2
        • 2.Qd3#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sb1
        • 2.Bd5#
      • 1...S3a2
        • 2.Bd5#
      • 1...S3e2
        • 2.Bd5#
      • 1...Sa4
        • 2.Bd5#
      • 1...Sb5
        • 2.Bd5#
      • 1...Sd5
        • 2.Bxd5#
      • 1...b3
        • 2.Sxc3#
      • 1...g4
        • 2.Rf4#
      • 1...h4
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 26
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::QAR1(C),XB(b)
    • B(l);N_GUARD::QAB1(C),XB(l)
    • B(l);N_GUARD,P_PINB(H)::QAB1(C)
  • Tries
    • Try
      • S(A);CHECK,XS(e)
      • Vars
        • K(g);P-FLIGHT,XB(F)::QAB(C)
      • Refutation
        • P(f);XS(A)
    • Try
      • S(G);CHECK
      • Vars
        • K(g);P-FLIGHT,XB(F)::QAB(C)
      • Refutation
        • P(j);XS(G)
    • Try
      • B(H);CHECK
      • Vars
        • K(g);P-FLIGHT,XB(F)::QAB(C)
      • Refutation
        • S(e);XB(H)
    • Try
      • B(H);CHECK
      • Vars
        • K(g);P-FLIGHT,XB(F)::QAR1(C)
      • Refutation
        • B(l);XB(H)
    • Try
      • R(I);CHECK
      • Vars
        • K(g);P-FLIGHT,XB(F)::QAB(C)
      • Refutation
        • B(b);XR(I)
  • Actual
    • B(F);XP(j)
    • Vars
      • R(k);N_GUARD,P_PINP(E),XB(F)::QAR2(C)
      • R(k);N_GUARD,XB(H)::QAR2(C)
      • B(b);XP(E)::S(G),XB(b)
      • S(e);N_GUARD,XS(A)::B(H)
      • R(k);SBLOCK::S(G)
      • Q(c);N_GUARD::QAB(C),XQ(c)
      • Q(c);N_GUARD::QAB1(C),XQ(c)
      • R(k);N_GUARD::QAR2(C),XR(k)
      • R(k);N_GUARD::QAR2(C)
      • R(k);OGATEB::R(I),XR(k)
      • B(b);N_GUARD::S(A),XB(b)
      • B(b);N_GUARD::QAR1(C),XB(b)
      • B(b);N_GUARD::R1(I),XB(b)
      • B(l);N_GUARD::QAB1(C),XB(l)
      • B(l);N_GUARD::B(H),XB(l)
      • B(l);N_GUARD,P_PINB(H)::QAB1(C)
      • S(a);N_GUARD::QAB1(C)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • S(e);N_GUARD::B(H)
      • S(e);N_GUARD::B(H),XS(e)
      • P(f);N_GUARD::S(A),XS(e)
      • P(h);N_GUARD::R1(B)
      • P(i);N_GUARD::QAR2(C)
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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).