MESON Chess Problem Database

Problem Display
PID: 189585 (8/2R1pb2/P1Q3p1/P2Pp1B1/P1RrkpP1/8/N3PPK1/1n3B2 w - - 0 1)

Wainwright, Joseph CJ

Pittsburgh Gazette-Times, 1911

8/2R1pb2/P1Q3p1/P2Pp1B1/P1RrkpP1/8/N3PPK1/1n3B2

#2

14 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qxc4#
    • 1...Bxd5
      • 2.Qxg6#
    • 1...Be6
      • 2.dxe6#
    • 1...Sd2
      • 2.Sc3#
    • 1...Sa3
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...f3+
      • 2.exf3#
    • 1...e6
      • 2.dxe6#
      • 2.d6#
  • Tries
    • 1.Rxd4+?
      • 1...Kxd4
        • 2.Qc4#
      • 1...exd4!
    • 1.Qxg6+?
      • 1...Kxd5
        • 2.Sb4#
        • 2.R4c5#
        • 2.R7c5#
        • 2.Qc6#
      • 1...Bxg6!
  • Keys
    • 1.Rd7!
      • 1...f3+
        • 2.exf3#
      • 1...Rxc4
        • 2.Qxc4#
      • 1...Bxd5
        • 2.Qxd5#
        • 2.Qxg6#
      • 1...Be8
        • 2.d6#
      • 1...Be6
        • 2.dxe6#
      • 1...Bg8
        • 2.Qxg6#
      • 1...Sd2
        • 2.Sc3#
      • 1...Sa3
        • 2.Sc3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...e6
        • 2.dxe6#
        • 2.d6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(b);N_SPINR(b),OGATE,XR(G)::QAR2(M),XR(b)
    • B(h);N_GUARD,P_SPINB(h),SBLOCK,XP(J)::QAB(M),XP(f)
    • B(h);OGATE::QAB(M)+P(J),XB(h)
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
    • P(d);CHECK,OGATE::P(C),XP(d)
  • Tries
    • Try
      • R(G);CHECK,XR(b)
      • Vars
        • K(c);P-FLIGHT,XR(G)::QAR1(M)
      • Refutation
        • P(e);XR(G)
    • Try
      • Q(M);CHECK,XP(f)
      • Refutation
        • B(h);XQ(M)
  • Actual
    • R(N);
    • Vars
      • P(d);CHECK,OGATE::P(C),XP(d)
      • R(b);N_SPINR(b),OGATE,XR(G)::QAR2(M),XR(b)
      • B(h);N_GUARD::QAB(M)+P(J)
      • B(h);OGATE::QAB(M)+P(J),XB(h)
      • B(h);N_GUARD::QAB(M),XP(f)
      • S(a);N_GUARD::S(B)
      • S(a);N_GUARD::S(B),XS(a)
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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).