MESON Chess Problem Database

Problem Display
PID: 268300 (rk2N3/p4p2/K1p2p2/4qB2/7p/2P4p/7Q/6B1 w - - 0 1)

Ceriani, Luigi

Il Problema, 1932

rk2N3/p4p2/K1p2p2/4qB2/7p/2P4p/7Q/6B1

#2

6 + 9

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh2
      • 2.Bxh2#
    • 1...Qg3
      • 2.Qb2#
    • 1...Qf4
      • 2.Qxf4#
    • 1...Qd6
      • 2.Qxd6#
    • 1...Qc7
      • 2.Qxc7#
    • 1...c5
      • 2.Qb2#
  • Tries
    • 1.Be3?
      • 1...Qg3
        • 2.Qb2#
      • 1...Qf4
        • 2.Bxf4#
        • 2.Qxf4#
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qc7
        • 2.Qxc7#
      • 1...c5
        • 2.Qb2#
      • 1...Qxh2!
    • 1.Bd4?
      • 1...Qg3
        • 2.Qb2#
      • 1...Qf4
        • 2.Qxf4#
        • 2.Qb2#
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qc7
        • 2.Qxc7#
      • 1...c5
        • 2.Qb2#
      • 1...Qxh2!
    • 1.Bc5?
      • threat
        • 2.Qb2#
      • 1...Qf4
        • 2.Qxf4#
      • 1...Qc7
        • 2.Qxc7#
      • 1...Qxh2!
    • 1.Bxh3?
      • 1...Qxh2
        • 2.Bxh2#
      • 1...Qg3
        • 2.Qb2#
      • 1...Qf4
        • 2.Qxf4#
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qc7
        • 2.Qxc7#
      • 1...c5
        • 2.Qb2#
      • 1...f5!
    • 1.Bg4?
      • 1...Qxh2
        • 2.Bxh2#
      • 1...Qg3
        • 2.Qb2#
      • 1...Qf4
        • 2.Qxf4#
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qc7
        • 2.Qxc7#
      • 1...c5
        • 2.Qb2#
      • 1...f5!
    • 1.Be6?
      • 1...Qxh2
        • 2.Bxh2#
      • 1...Qg3
        • 2.Qb2#
      • 1...Qf4
        • 2.Qxf4#
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qc7
        • 2.Qxc7#
      • 1...c5
        • 2.Qb2#
      • 1...f5
        • 2.Qxe5#
      • 1...fxe6!
  • Keys
    • 1.Bd7!
      • 1...Qxh2
        • 2.Bxh2#
      • 1...Qg3
        • 2.Qb2#
      • 1...Qf4
        • 2.Qxf4#
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qc7
        • 2.Qxc7#
      • 1...c5
        • 2.Qb2#
      • 1...f5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(c);N_SPINQ(c),OGATE,XQ(B)::B(A),XQ(c)
    • Q(c);N_GUARD::QAR(B)
    • Q(c);OGATEB::QAB(B),XQ(c)
    • Q(c);OGATE::QAB(B),XQ(c)
    • Q(c);OGATE::QAB1(B),XQ(c)
    • P(d);::QAR(B)
  • Tries
    • Try
      • B(A);
      • Vars
        • Q(c);N_GUARD::QAR(B)
        • Q(c);OGATE::QAB(B),XQ(c)
        • Q(c);OGATE::QAB1(B),XQ(c)
        • P(d);::QAR(B)
      • Refutation
        • Q(c);N_SPINQ(c),XQ(B)
    • Try
      • B(A);
      • Vars
        • Q(c);N_GUARD::QAR(B)
        • Q(c);OGATE::QAB(B),XQ(c)
        • Q(c);OGATE::QAB1(B),XQ(c)
        • P(d);::QAR(B)
      • Refutation
        • Q(c);N_SPINQ(c),XQ(B)
    • Try
      • B(A);
      • Threat
        • QAR(B)
      • Vars
        • Q(c);OGATEB::QAB(B),XQ(c)
        • Q(c);OGATE::QAB1(B),XQ(c)
      • Refutation
        • Q(c);N_SPINQ(c),XQ(B)
    • Try
      • B(D);XP(a)
      • Vars
        • Q(c);N_SPINQ(c),OGATE,XQ(B)::B(A),XQ(c)
        • Q(c);N_GUARD::QAR(B)
        • Q(c);OGATEB::QAB(B),XQ(c)
        • Q(c);OGATE::QAB(B),XQ(c)
        • Q(c);OGATE::QAB1(B),XQ(c)
        • P(d);::QAR(B)
      • Refutation
        • P(e);
    • Try
      • B(D);
      • Vars
        • Q(c);N_SPINQ(c),OGATE,XQ(B)::B(A),XQ(c)
        • Q(c);N_GUARD::QAR(B)
        • Q(c);OGATEB::QAB(B),XQ(c)
        • Q(c);OGATE::QAB(B),XQ(c)
        • Q(c);OGATE::QAB1(B),XQ(c)
        • P(d);::QAR(B)
      • Refutation
        • P(e);
    • Try
      • B(D);
      • Vars
        • Q(c);N_SPINQ(c),OGATE,XQ(B)::B(A),XQ(c)
        • Q(c);N_GUARD::QAR(B)
        • Q(c);OGATEB::QAB(B),XQ(c)
        • Q(c);OGATE::QAB(B),XQ(c)
        • Q(c);OGATE::QAB1(B),XQ(c)
        • P(d);::QAR(B)
        • P(e);N_GUARD::QAB(B),XQ(c)
      • Refutation
        • P(g);XB(D)
  • Actual
    • B(D);
    • Vars
      • Q(c);N_SPINQ(c),OGATE,XQ(B)::B(A),XQ(c)
      • Q(c);N_GUARD::QAR(B)
      • Q(c);OGATEB::QAB(B),XQ(c)
      • Q(c);OGATE::QAB(B),XQ(c)
      • Q(c);OGATE::QAB1(B),XQ(c)
      • P(d);::QAR(B)
      • P(e);N_GUARD::QAB(B),XQ(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).