MESON Chess Problem Database

Problem Display
PID: 48947 (6b1/1n5p/2R4N/2p1kB1p/1Pp5/2P3n1/K2Q2N1/B7 w - - 0 1)

Pulitzer, Walter

American Chess Magazine, 1897

6b1/1n5p/2R4N/2p1kB1p/1Pp5/2P3n1/K2Q2N1/B7

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qf4#
    • 1...Be6
      • 2.Rxe6#
    • 1...Sa5
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sd8
      • 2.Qd6#
    • 1...cxb4
      • 2.Qd4#
  • Tries
    • 1.Sg4+?
      • 1...Kxf5
        • 2.Qf4#
      • 1...hxg4!
    • 1.Sf7+?
      • 1...Kxf5
        • 2.Qf4#
      • 1...Bxf7!
    • 1.Qe3+?
      • 1...Se4
        • 2.Qxe4#
      • 1...Kd5!
  • Keys
    • 1.Qd3!
      • 1...cxd3+
        • 2.c4#
      • 1...Sxf5
        • 2.Qxf5#
      • 1...cxb4
        • 2.Qd4#
      • 1...Be6
        • 2.Rxe6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Bf7
        • 2.Sxf7#
      • 1...Bd5
        • 2.Qxg3#
      • 1...Sf1
        • 2.Qe4#
      • 1...Sh1
        • 2.Qe4#
      • 1...Se2
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sa5
        • 2.Qd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...h4
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(h);SBLOCK::QAB1(C)
    • B(h);N_GUARD::R1(H),XB(h)
    • S(f);N_GUARD::QAB1(C)
    • S(f);N_GUARD::QAB1(C),XS(f)
    • P(c);N_GUARD,XP(F)::QAB1(C)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(d);P-FLIGHT,XB(G)::QAR1(C)
      • Refutation
        • P(e);XS(I)
    • Try
      • S(I);CHECK
      • Vars
        • K(d);P-FLIGHT,XB(G)::QAR1(C)
      • Refutation
        • B(h);XS(I)
    • Try
      • Q(C);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(C),XS(a)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • P(b);CHECK,OGATE,XQ(C)::B(A)+P(E)
      • S(a);OGATE,XB(G)::QAR1(C),XS(a)
      • P(c);N_GUARD,XP(F)::QAB1(C)
      • B(h);N_GUARD::R1(H),XB(h)
      • S(f);N_GUARD::QAB1(C),XS(f)
      • B(h);N_GUARD::S(I),XB(h)
      • B(h);SBLOCK::QAB(C),XS(a)
      • S(a);N_GUARD::QAR1(C)
      • S(a);N_GUARD::QAR1(C),XS(a)
      • S(f);N_GUARD::QAB1(C)
      • P(e);N_GUARD::S(I)
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).