MESON Chess Problem Database

Problem Display
PID: 71598 (1R1N4/2pP4/1NP5/2k5/1p2P3/1b2P1B1/2r3QK/n1R2B2 w - - 0 1)

Millour, Rene-Jean

1st Prize, Pelle MT, 1966-1967

1R1N4/2pP4/1NP5/2k5/1p2P3/1b2P1B1/2r3QK/n1R2B2

#2

12 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Sa4#
    • 1...Ba4
      • 2.Sxa4#
    • 1...Bc4
      • 2.Sa4#
    • 1...Bd5
      • 2.Sa4#
    • 1...Be6
      • 2.Sa4#
    • 1...Bf7
      • 2.Sa4#
    • 1...Bg8
      • 2.Sa4#
  • Tries
    • 1.Se6+?
      • 1...Kxc6
        • 2.d8S#
      • 1...Bxe6!
    • 1.Qxc2+?
      • 1...Bxc2
        • 2.Sa4#
      • 1...Bc4
        • 2.Sa4#
        • 2.Qxc4#
      • 1...Sxc2!
    • 1.Qe2?
      • 1...Rxc1
        • 2.Qb5#
      • 1...Rc4
        • 2.Qh5#
      • 1...Bc4
        • 2.Sa4#
      • 1...Rc3
        • 2.Qb5#
      • 1...Ba2
        • 2.Sa4#
      • 1...Ba4
        • 2.Sxa4#
      • 1...Bd5
        • 2.Sa4#
      • 1...Be6
        • 2.Sa4#
      • 1...Bf7
        • 2.Sa4#
      • 1...Bg8
        • 2.Sa4#
      • 1...cxb6!
    • 1.Qf2?
      • 1...Rxc1
        • 2.Qf8#
      • 1...Rc4
        • 2.Qf5#
      • 1...Bc4
        • 2.Sa4#
      • 1...Rc3
        • 2.Qf8#
      • 1...Ba2
        • 2.Sa4#
      • 1...Ba4
        • 2.Sxa4#
      • 1...Bd5
        • 2.Sa4#
      • 1...Be6
        • 2.Sa4#
      • 1...Bf7
        • 2.Sa4#
      • 1...Bg8
        • 2.Sa4#
      • 1...cxb6!
  • Keys
    • 1.Qd2!
      • 1...Rxc1
        • 2.Qd4#
      • 1...cxb6
        • 2.Bd6#
      • 1...Rc4
        • 2.Qd5#
      • 1...Bc4
        • 2.Sa4#
      • 1...Rc3
        • 2.Qd4#
      • 1...Ba2
        • 2.Sa4#
      • 1...Ba4
        • 2.Sxa4#
      • 1...Bd5
        • 2.Sa4#
      • 1...Be6
        • 2.Sa4#
      • 1...Bf7
        • 2.Sa4#
      • 1...Bg8
        • 2.Sa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::S(H)
    • B(c);N_GUARD::S(H),XB(c)
    • B(c);N_GUARD,N_SPINR(b)::S(H)
  • Tries
    • Try
      • S(L);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(I)::P=S
      • Refutation
        • B(c);XS(L)
    • Try
      • Q(C);CHECK,N_SPINQ(C),XR(b)
      • Vars
        • B(c);P_SPINB(c),XQ(C)::S(H)
      • Refutation
        • S(a);P_SPINS(a),XQ(C)
    • Try
      • Q(C);
      • Vars
        • R(b);N_PINQ(C),N_SPINR(b),XR(A)::QAR1(C)
        • R(b);N_PINQ(C)::QAR(C)
        • B(c);N_GUARD,N_SPINR(b)::S(H)
        • R(b);N_PINQ(C)::QAR1(C)
        • B(c);N_GUARD::S(H)
        • B(c);N_GUARD::S(H),XB(c)
      • Refutation
        • P(f);XS(H)
    • Try
      • Q(C);
      • Vars
        • R(b);N_PINQ(C),N_SPINR(b),XR(A)::QAB(C)
        • R(b);N_PINQ(C)::QAR(C)
        • B(c);N_GUARD,N_SPINR(b)::S(H)
        • R(b);N_PINQ(C)::QAB(C)
        • B(c);N_GUARD::S(H)
        • B(c);N_GUARD::S(H),XB(c)
      • Refutation
        • P(f);XS(H)
  • Actual
    • Q(C);
    • Vars
      • R(b);N_PINQ(C),N_SPINR(b),XR(A)::QAB1(C)
      • P(f);N_GUARD,XS(H)::B(F)
      • R(b);N_PINQ(C)::QAR1(C)
      • B(c);N_GUARD,N_SPINR(b)::S(H)
      • R(b);N_PINQ(C)::QAB1(C)
      • B(c);N_GUARD::S(H)
      • B(c);N_GUARD::S(H),XB(c)
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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).