MESON Chess Problem Database

Problem Display
PID: 164040 (R1Q4K/1p1p4/1Pq4B/8/1R6/2k5/2N5/1n2N3 w - - 0 1)

Romanovskis, Vladimirs

Sachmatija, 2006

R1Q4K/1p1p4/1Pq4B/8/1R6/2k5/2N5/1n2N3

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Qxc4#
    • 1...Qc5
      • 2.Qxc5#
    • 1...Qc7
      • 2.Qxc7#
    • 1...Qxc8+
      • 2.Rxc8#
    • 1...Sd2
      • 2.Bg7#
    • 1...Sa3
      • 2.Rxa3#
    • 1...d5
      • 2.Qh3#
  • Tries
    • 1.Kg8?
      • 1...Qc4+
        • 2.Qxc4#
      • 1...Qxc8+
        • 2.Rxc8#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qc7
        • 2.Qxc7#
      • 1...Sd2
        • 2.Bg7#
      • 1...Sa3
        • 2.Rxa3#
      • 1...d5
        • 2.Qh3#
      • 1...d6!
    • 1.Bc1?
      • 1...Qxc8+
        • 2.Rxc8#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qc7
        • 2.Qxc7#
      • 1...Sd2
        • 2.Bb2#
      • 1...Sa3
        • 2.Rxa3#
      • 1...d5
        • 2.Qh3#
      • 1...d6!
    • 1.Bf4?
      • 1...Qxc8+
        • 2.Rxc8#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qc7
        • 2.Qxc7#
      • 1...Sd2
        • 2.Be5#
      • 1...Sa3
        • 2.Rxa3#
      • 1...d5
        • 2.Qh3#
      • 1...d6!
    • 1.Bg5?
      • 1...Qxc8+
        • 2.Rxc8#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qc7
        • 2.Qxc7#
      • 1...Sd2
        • 2.Bf6#
      • 1...Sa3
        • 2.Rxa3#
      • 1...d5
        • 2.Qh3#
      • 1...d6!
    • 1.Qc7?
      • threat
        • 2.Qe5#
      • 1...d6
        • 2.Qg7#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Qc5
        • 2.Qxc5#
      • 1...d5
        • 2.Qg3#
      • 1...Qxc7!
  • Keys
    • 1.Kh7!
      • 1...Qxc8
        • 2.Rxc8#
      • 1...Qc4
        • 2.Qxc4#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qc7
        • 2.Qxc7#
      • 1...Sd2
        • 2.Bg7#
      • 1...Sa3
        • 2.Rxa3#
      • 1...d5
        • 2.Qh3#
      • 1...d6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(c);OGATE::QAR1(G),XQ(c)
    • Q(c);OGATE::QAR2(G),XQ(c)
    • Q(c);OGATEB::QAR(G),XQ(c)
    • Q(c);CHECK,N_SPINQ(c),OGATE,XQ(G)::R(F),XQ(c)
    • S(a);SBLOCK::B(E)
    • S(a);N_GUARD::R(F),XS(a)
    • P(e);OGATE::QAR(G)
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Vars
        • Q(c);CHECK,OGATE::QAR1(G),XQ(c)
        • Q(c);CHECK,N_SPINQ(c),OGATE,XQ(G)::R(F),XQ(c)
        • Q(c);OGATE::QAR2(G),XQ(c)
        • Q(c);OGATEB::QAR(G),XQ(c)
        • S(a);SBLOCK::B(E)
        • S(a);N_GUARD::R(F),XS(a)
        • P(e);OGATE::QAR(G)
      • Refutation
        • P(e);
    • Try
      • B(E);
      • Vars
        • Q(c);CHECK,N_SPINQ(c),OGATE,XQ(G)::R(F),XQ(c)
        • Q(c);OGATE::QAR1(G),XQ(c)
        • Q(c);OGATE::QAR2(G),XQ(c)
        • Q(c);OGATEB::QAR(G),XQ(c)
        • S(a);SBLOCK::B(E)
        • S(a);N_GUARD::R(F),XS(a)
        • P(e);OGATE::QAR(G)
      • Refutation
        • P(e);
    • Try
      • B(E);
      • Vars
        • Q(c);CHECK,N_SPINQ(c),OGATE,XQ(G)::R(F),XQ(c)
        • Q(c);OGATE::QAR1(G),XQ(c)
        • Q(c);OGATE::QAR2(G),XQ(c)
        • Q(c);OGATEB::QAR(G),XQ(c)
        • S(a);SBLOCK::B(E)
        • S(a);N_GUARD::R(F),XS(a)
        • P(e);OGATE::QAR(G)
      • Refutation
        • P(e);
    • Try
      • B(E);
      • Vars
        • Q(c);CHECK,N_SPINQ(c),OGATE,XQ(G)::R(F),XQ(c)
        • Q(c);OGATE::QAR1(G),XQ(c)
        • Q(c);OGATE::QAR2(G),XQ(c)
        • Q(c);OGATEB::QAR(G),XQ(c)
        • S(a);SBLOCK::B(E)
        • S(a);N_GUARD::R(F),XS(a)
        • P(e);OGATE::QAR(G)
      • Refutation
        • P(e);
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • P(e);OGATE::QAB(G)
        • Q(c);OGATE::QAR1(G),XQ(c)
        • Q(c);OGATE::QAR2(G),XQ(c)
        • P(e);::QAR(G)
      • Refutation
        • Q(c);N_SPINQ(c),XQ(G)
  • Actual
    • K(H);P-FLIGHT
    • Vars
      • Q(c);N_SPINQ(c),OGATE,XQ(G)::R(F),XQ(c)
      • Q(c);OGATE::QAR1(G),XQ(c)
      • Q(c);OGATE::QAR2(G),XQ(c)
      • Q(c);OGATEB::QAR(G),XQ(c)
      • S(a);SBLOCK::B(E)
      • S(a);N_GUARD::R(F),XS(a)
      • P(e);OGATE::QAR(G)
      • P(e);::QAB(G)
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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).