MESON Chess Problem Database

Problem Display
PID: 59511 (k1r5/2PN1PP1/1K6/1N6/1pP3p1/r4q2/Q7/R4B2 w - - 0 1)

Morse, Christopher Jeremy

The Problemist, 2005

k1r5/2PN1PP1/1K6/1N6/1pP3p1/r4q2/Q7/R4B2

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Bxg2#
      • 2.Qxg2#
    • 1...Ra4
      • 2.Qxa4#
    • 1...Ra5
      • 2.Qxa5#
    • 1...Ra6+
      • 2.Qxa6#
    • 1...Ra7
      • 2.Qxa7#
    • 1...Rxc7
      • 2.Sxc7#
    • 1...Rb8+
      • 2.cxb8Q#
      • 2.cxb8R#
    • 1...Rd8
      • 2.cxd8Q#
      • 2.cxd8R#
    • 1...Re8
      • 2.fxe8Q#
      • 2.fxe8R#
    • 1...Rf8
      • 2.gxf8Q#
      • 2.gxf8R#
    • 1...Rh8
      • 2.gxh8Q#
      • 2.gxh8R#
    • 1...b3
      • 2.Qxa3#
  • Tries
    • 1.Qg2?
      • 1...Qc6+
        • 2.Qxc6#
      • 1...Qb7+
        • 2.Qxb7#
      • 1...Ra6+
        • 2.Rxa6#
      • 1...Rb8+
        • 2.cxb8Q#
        • 2.cxb8R#
      • 1...Qxg2
        • 2.Bxg2#
      • 1...Rxc7
        • 2.Sxc7#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Ra2
        • 2.Rxa2#
      • 1...Ra4
        • 2.Rxa4#
      • 1...Ra5
        • 2.Rxa5#
      • 1...Ra7
        • 2.Rxa7#
      • 1...Rd8
        • 2.cxd8Q#
        • 2.cxd8R#
      • 1...Re8
        • 2.fxe8Q#
        • 2.fxe8R#
      • 1...Rf8
        • 2.gxf8Q#
        • 2.gxf8R#
      • 1...Rg8
        • 2.fxg8Q#
        • 2.fxg8R#
      • 1...Rh8
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...b3
        • 2.Rxa3#
      • 1...g3
        • 2.Qxf3#
      • 1...Rxa1!
    • 1.Qxa3+?
      • 1...Qxa3
        • 2.Bg2#
      • 1...bxa3!
  • Keys
    • 1.Bg2!
      • 1...Qc6+
        • 2.Bxc6#
      • 1...Qb7+
        • 2.Bxb7#
      • 1...Ra6+
        • 2.Qxa6#
      • 1...Rb8+
        • 2.cxb8Q#
        • 2.cxb8R#
      • 1...Qxg2
        • 2.Qxg2#
      • 1...Rxa2
        • 2.Rxa2#
      • 1...Rxc7
        • 2.Sxc7#
      • 1...Qe4
        • 2.Bxe4#
      • 1...Qd5
        • 2.Bxd5#
      • 1...Ra4
        • 2.Qxa4#
      • 1...Ra5
        • 2.Qxa5#
      • 1...Ra7
        • 2.Qxa7#
      • 1...Rd8
        • 2.cxd8Q#
        • 2.cxd8R#
      • 1...Re8
        • 2.fxe8Q#
        • 2.fxe8R#
      • 1...Rf8
        • 2.gxf8Q#
        • 2.gxf8R#
      • 1...Rg8
        • 2.fxg8Q#
        • 2.fxg8R#
      • 1...Rh8
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...b3
        • 2.Qxa3#
      • 1...g3
        • 2.Bxf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE::QAR(C),XR(a)
    • R(a);CHECK,OGATE::QAR2(C),XR(a)
    • R(a);OGATE::QAR1(C),XR(a)
    • R(f);XP(G)::S(E),XR(f)
    • R(f);CHECK,OGATE::PXR(f)=Q
    • R(f);OGATE::PXR(f)=Q
    • P(c);N_GUARD,S_CUTQ(b)::QAR(C),XR(a)
  • Tries
    • Try
      • Q(C);P_PINQ(b)
      • Vars
        • Q(b);CHECK,OGATE::QAB(C),XQ(b)
        • Q(b);CHECK,OGATE::QAB1(C),XQ(b)
        • R(a);CHECK,OGATE::R(A),XR(a)
        • R(f);CHECK,OGATE::PXR(f)=Q
        • Q(b);N_SPINQ(b),OGATE,XQ(C)::B(B),XQ(b)
        • R(f);XP(G)::S(E),XR(f)
        • Q(b);OGATE::QAB(C),XQ(b)
        • R(a);OGATEB::R(A),XR(a)
        • R(a);OGATE::R(A),XR(a)
        • R(a);OGATE::R1(A),XR(a)
        • R(f);OGATE::PXR(f)=Q
        • P(c);N_GUARD::R(A),XR(a)
        • P(d);N_GUARD::QAB(C),XQ(b)
      • Refutation
        • R(a);N_SPINR(a),XR(A)
    • Try
      • Q(C);CHECK,XR(a)
      • Vars
        • Q(b);P_SPINQ(b),S_CUTP(c),XQ(C)::B(B)
      • Refutation
        • P(c);P_SPINP(c),XQ(C)
  • Actual
    • B(B);P_PINQ(b)
    • Vars
      • Q(b);CHECK,OGATE::B(B),XQ(b)
      • R(a);CHECK,OGATE::QAR2(C),XR(a)
      • R(f);CHECK,OGATE::PXR(f)=Q
      • Q(b);N_SPINQ(b),OGATE,XB(B)::QAB(C),XQ(b)
      • R(a);OGATE,XQ(C)::R(A),XR(a)
      • R(f);XP(G)::S(E),XR(f)
      • Q(b);OGATE::B(B),XQ(b)
      • R(a);OGATE::QAR(C),XR(a)
      • R(a);OGATE::QAR1(C),XR(a)
      • R(f);OGATE::PXR(f)=Q
      • P(c);N_GUARD::QAR(C),XR(a)
      • P(d);N_GUARD::B(B),XQ(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).