MESON Chess Problem Database

Problem Display
PID: 166949 (NR6/pPQ1p3/kq2p1R1/P7/P1KP4/1PBB4/4p3/8 w - - 0 1)

Ouellet, Charles

Phenix, 2017

NR6/pPQ1p3/kq2p1R1/P7/P1KP4/1PBB4/4p3/8

#2

12 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4+
      • 2.Kxd4#
    • 1...Qxa5
      • 2.Qxa5#
    • 1...Qc5+
      • 2.Kxc5#
    • 1...Qxc7+
      • 2.Sxc7#
    • 1...Qxb3+
      • 2.Kxb3#
    • 1...Qb4+
      • 2.Kxb4#
    • 1...Qb5+
      • 2.axb5#
    • 1...Qc6+
      • 2.Qxc6#
    • 1...Qxb7
      • 2.Qxb7#
    • 1...e5
      • 2.Kd5#
  • Tries
    • 1.Sxb6?
      • threat
        • 2.Kb4#
        • 2.Kc5#
      • 1...axb6
        • 2.Ra8#
        • 2.Qxb6#
      • 1...e1S!
    • 1.Bxe2?
      • 1...Qxd4+
        • 2.Kxd4#
      • 1...Qc5+
        • 2.Kxc5#
      • 1...Qxc7+
        • 2.Sxc7#
      • 1...Qxb3+
        • 2.Kxb3#
      • 1...Qb4+
        • 2.Kxb4#
      • 1...Qb5+
        • 2.axb5#
      • 1...Qc6+
        • 2.Qxc6#
      • 1...Qxa5
        • 2.Qxa5#
      • 1...Qxb7
        • 2.Qxb7#
      • 1...e5
        • 2.Kd5#
      • 1...Qd6!
    • 1.axb6?
      • threat
        • 2.Kb4#
        • 2.Kc5#
      • 1...axb6
        • 2.Qxb6#
      • 1...e1S!
  • Keys
    • 1.Be1!
      • 1...Qxd4+
        • 2.Kxd4#
      • 1...Qc5+
        • 2.Kxc5#
      • 1...Qxc7+
        • 2.Sxc7#
      • 1...Qxb3+
        • 2.Kxb3#
      • 1...Qb4+
        • 2.Kxb4#
      • 1...Qb5+
        • 2.axb5#
      • 1...Qc6+
        • 2.Qxc6#
      • 1...Qxa5
        • 2.Qxa5#
      • 1...Qxb7
        • 2.Qxb7#
      • 1...Qd6
        • 2.Kc3#
      • 1...e5
        • 2.Kd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(c);CHECK,P_SPINP(d),XP(F)::B(C)+K(E),XQ(c)
    • Q(c);OGATE,P_SPINP(d),XP(G)::QAR1(J),XQ(c)
    • Q(c);CHECK,P_SPINP(d)::B(C)+K(E),XQ(c)
    • Q(c);CHECK,P_SPINP(d),XQ(J)::S(K),XQ(c)
    • Q(c);CHECK,P_SPINP(d),XP(A)::B(C)+K(E),XQ(c)
    • Q(c);CHECK,OGATE,P_SPINP(d)::P(D),XQ(c)
    • Q(c);CHECK,OGATEB::QAR2(J),XQ(c)
    • Q(c);OGATE,P_SPINP(d),XP(I)::QAB1(J),XQ(c)
    • P(d);P_SPINQ(c)::B(C)+K(E)
  • Tries
    • Try
      • S(K);XQ(c)
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);
    • Try
      • B(C);XP(a)
      • Vars
        • Q(c);CHECK,P_SPINP(d),XP(F)::B(C)+K(E),XQ(c)
        • Q(c);CHECK,P_SPINP(d)::B(C)+K(E),XQ(c)
        • Q(c);CHECK,P_SPINP(d),XQ(J)::S(K),XQ(c)
        • Q(c);CHECK,P_SPINP(d),XP(A)::B(C)+K(E),XQ(c)
        • Q(c);CHECK,OGATE,P_SPINP(d)::P(D),XQ(c)
        • Q(c);CHECK,OGATEB::QAR2(J),XQ(c)
        • Q(c);OGATE,P_SPINP(d),XP(G)::QAR1(J),XQ(c)
        • Q(c);OGATE,P_SPINP(d),XP(I)::QAB1(J),XQ(c)
        • P(d);P_SPINQ(c)::B(C)+K(E)
      • Refutation
        • Q(c);
    • Try
      • P(G);XQ(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);OGATE,XP(G)::QAR1(J),XP(e)
      • Refutation
        • P(a);
  • Actual
    • B(B);
    • Vars
      • Q(c);CHECK,P_SPINP(d),XP(F)::B(C)+K(E),XQ(c)
      • Q(c);CHECK,P_SPINP(d)::B(C)+K(E),XQ(c)
      • Q(c);CHECK,P_SPINP(d),XQ(J)::S(K),XQ(c)
      • Q(c);CHECK,P_SPINP(d),XP(A)::B(C)+K(E),XQ(c)
      • Q(c);CHECK,OGATE,P_SPINP(d)::P(D),XQ(c)
      • Q(c);CHECK,OGATEB::QAR2(J),XQ(c)
      • Q(c);OGATE,P_SPINP(d),XP(G)::QAR1(J),XQ(c)
      • Q(c);OGATE,P_SPINP(d),XP(I)::QAB1(J),XQ(c)
      • Q(c);N_GUARD::B(C)+K(E)
      • P(d);P_SPINQ(c)::B(C)+K(E)
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).