MESON Chess Problem Database

Problem Display
PID: 2185 (8/8/4K3/bB2p3/3k4/6N1/1R6/QnR5 w - - 0 1)

Conroy, JA

2nd Prize, Dublin Evening Mail, 1887

8/8/4K3/bB2p3/3k4/6N1/1R6/QnR5

#2

6 + 4

5062 111 Selected Problems by Famous Composers 1945
5454 Near Snap 2007
14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Qa7#
    • 1...Bd2
      • 2.Qa7#
    • 1...Bc3
      • 2.Qa7#
    • 1...e4
      • 2.Sf5#
  • Tries
    • 1.Rbxb1+?
      • 1...Bc3
        • 2.Qxc3#
        • 2.Qa7#
      • 1...Ke3!
    • 1.Re2+?
      • 1...Bc3
        • 2.Qa7#
      • 1...Sc3!
    • 1.Rb3+?
      • 1...Bc3
        • 2.Qa7#
      • 1...Sc3!
    • 1.Qxb1?
      • threat
        • 2.Sf5#
        • 2.Qd3#
        • 2.Qe4#
      • 1...Ke3
        • 2.Qe4#
      • 1...e4
        • 2.Sf5#
        • 2.Qxe4#
      • 1...Bc3!
    • 1.Qa4+?
      • 1...Ke3
        • 2.Qe4#
      • 1...Bb4!
  • Keys
    • 1.Rc3!
      • 1...Kxc3
        • 2.Se2#
      • 1...Bxc3
        • 2.Qa7#
      • 1...Sxc3
        • 2.Qg1#
      • 1...Bb4
        • 2.Rxb4#
      • 1...Bb6
        • 2.Rb4#
      • 1...Bc7
        • 2.Rb4#
      • 1...Bd8
        • 2.Rb4#
      • 1...Sd2
        • 2.Rxd2#
      • 1...Sa3
        • 2.Rd2#
      • 1...e4
        • 2.Se2#

Anticipated by 1984(1867)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • B(c);OGATE::QAB(A)
    • P(d);SBLOCK::S(D)
  • Tries
    • Try
      • R(C);CHECK,XS(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • B(c);OGATE,P_SPINB(c)::QAB(A)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • R(C);CHECK
      • Vars
        • B(c);OGATE,P_SPINB(c)::QAB(A)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(A);XS(a)
      • Threat
        • DUALS(3)
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • B(c);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • R(B);
    • Vars
      • K(b);S_FLIGHT,XR(B)::S(D)
      • B(c);OGATE,SBLOCK,XR(B)::QAB(A)
      • S(a);OGATE,SBLOCK,XR(B)::QAB(A)
      • B(c);N_GUARD::R(C),XB(c)
      • B(c);N_GUARD::R(C)
      • S(a);N_GUARD::R(C),XS(a)
      • S(a);N_GUARD::R(C)
      • P(d);SBLOCK::S(D)
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).