MESON Chess Problem Database

Problem Display
PID: 6467 (8/1K6/4R1Bk/4Bpp1/7n/8/8/7Q w - - 0 1)

Cumpe, Josef

Svetozor, 1929

8/1K6/4R1Bk/4Bpp1/7n/8/8/7Q

#2

5 + 4

4872 Themes-64 1956
14620 Sunningdale Machine Gun Solving 2010

SOLUTION

  • SOUND
  • Sets
    • 1...g4
      • 2.Qxh4#
  • Tries
    • 1.Ka6?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Kb6?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Kc6?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Ka7?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Kc7?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Ka8?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Kb8?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Kc8?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Ba1?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Bb2?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Bc3?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Bd4?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Bh8?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Ra6?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Rb6?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Rc6?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Rd6?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
    • 1.Qf3?
      • threat
        • 2.Qh5#
      • 1...Sxg6
        • 2.Qh1#
        • 2.Qh3#
      • 1...g4
        • 2.Qf4#
      • 1...Sxf3!
    • 1.Qh2?
      • 1...g4
        • 2.Qf4#
        • 2.Qxh4#
      • 1...f4!
    • 1.Qh3?
      • 1...g4
        • 2.Qxh4#
      • 1...f4!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Bg7#
      • 1...Sxg6
        • 2.Qh1#
      • 1...g4
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR2(A),XS(a)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
    • Try
      • Q(A);N_PINS(a)
      • Threat
        • QAR1(A)
      • Vars
        • P(c);OGATEB::QAB(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Vars
        • P(c);N_GUARD::QAR2(A),XS(a)
      • Refutation
        • P(b);
  • Actual
    • Q(A);N_PINS(a)
    • Threat
      • B(B)
    • Vars
      • S(a);OGATEB,P_SPINS(a),XB(D)::QAR(A)
      • P(c);OGATEB::B(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).