MESON Chess Problem Database
Problem Display
PID: 149146 (8/2N5/1B6/r1R2q2/3k1b1R/3p4/3N1K2/3b3Q w - - 0 1)
Dedrle, Cyril
Ceskoslovenska republika, 1924
#2
7 + 6
| 15148 | Sadier Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qh3
- 2.Rxf4#
- 2.Qe4#
- 2.Qd5#
- 1...Qe4
- 2.Qxe4#
- 1...Qg4
- 2.Qe4#
- 2.Qd5#
- 1...Qe6
- 2.Sxe6#
- 1...Qg6
- 2.Qd5#
- 1...Qd7
- 2.Rxf4#
- 2.Qe4#
- 1...Qh7
- 2.Se6#
- 2.Qd5#
- 1...Qc8
- 2.Rxf4#
- 2.Qe4#
- 2.Qd5#
- 1...Qd5
- 2.Qxd5#
- 1...Qe5
- 2.Rc4#
- 1...Qg5
- 2.Se6#
- 2.Qe4#
- 1...Qh5
- 2.Se6#
- 2.Rxf4#
- 2.Qe4#
- 1...Qf6
- 2.Qe4#
- 2.Qd5#
- 1...Qf7
- 2.Qe4#
- 1...Qf8
- 2.Se6#
- 2.Qe4#
- 2.Qd5#
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Ra3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Be2
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Ba4
- 2.Qa1#
- 1...Bg4
- 2.Sb3#
- 1...Bh5
- 2.Sb3#
- 1...Qh3
- Tries
- 1.Sf3+?
- 1...Ke4
- 2.Rc4#
- 1...Bxf3!
- 1...Ke4
- 1.Rxf4+?
- 1...Qe4
- 2.Se6#
- 2.Rxe4#
- 2.Qxe4#
- 2.Qh8#
- 1...Qxf4+!
- 1...Qe4
- 1.Rxf5+?
- 1...Rc5
- 2.Sb5#
- 1...Kc3!
- 1...Rc5
- 1.Qc6?
- threat
- 2.Rd5#
- 1...Qxc5
- 2.Qf6#
- 1...Qd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Rxc5!
- threat
- 1.Sf3+?
- Keys
- 1.Qa8!
- 1...Qxc5
- 2.Qh8#
- 1...Rxc5
- 2.Qa1#
- 1...Rxa8
- 2.Sb5#
- 1...Qd5
- 2.Qxd5#
- 1...Qh3
- 2.Rxf4#
- 2.Qe4#
- 2.Qd5#
- 2.Qh8#
- 1...Qe4
- 2.Qxe4#
- 1...Qg4
- 2.Qe4#
- 2.Qd5#
- 1...Qe6
- 2.Sxe6#
- 1...Qg6
- 2.Qd5#
- 1...Qd7
- 2.Rxf4#
- 2.Qe4#
- 1...Qh7
- 2.Se6#
- 2.Qd5#
- 1...Qc8
- 2.Rxf4#
- 2.Qe4#
- 2.Qd5#
- 1...Qe5
- 2.Rc4#
- 1...Qg5
- 2.Se6#
- 2.Qe4#
- 1...Qh5
- 2.Se6#
- 2.Rxf4#
- 2.Qe4#
- 1...Qf6
- 2.Qe4#
- 2.Qd5#
- 1...Qf7
- 2.Qe4#
- 1...Qf8
- 2.Se6#
- 2.Qe4#
- 2.Qd5#
- 1...Ra1
- 2.Sb5#
- 2.Qxa1#
- 1...Ra2
- 2.Sb5#
- 1...Ra3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Bc2
- 2.Sf3#
- 1...Be2
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 2.Sf3#
- 1...Bf3
- 2.Sb3#
- 2.Sxf3#
- 1...Ba4
- 2.Sf3#
- 1...Bg4
- 2.Sb3#
- 1...Bh5
- 2.Sb3#
- 1...Qxc5
- 1.Qa8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(f);N_GUARD,N_SPINB(d)::QAR1(A),XQ(f)
- Q(f);N_GUARD::S(G),XQ(f)
- Q(f);N_GUARD::QAR1(A)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);SBLOCK::B(F)+R(E),DCHECK
- R(e);N_GUARD::S(G)
- R(e);N_GUARD,P_PINS(B)::S(G)
- R(e);N_GUARD::S(G),XR(e)
- B(a);N_GUARD::S(B)
- B(a);N_GUARD::S(B),XB(a)
- B(a);OGATE::QAB(A)
- B(a);N_GUARD,N_SPINB(d)::S(B)
- Tries
- Try
- S(B);CHECK
- Vars
- K(c);P-FLIGHT::R(E)
- Refutation
- B(a);XS(B)
- Try
- R(D);CHECK,P_SPINR(D),XB(d)
- Refutation
- Q(f);CHECK,XR(D)
- Try
- R(E);CHECK,XQ(f)
- Vars
- R(e);P_SPINR(e)::S(G)
- Refutation
- K(c);N_SPINB(d),S_FLIGHT
- Try
- Q(A);
- Threat
- B(F)+R(E),DCHECK
- Vars
- Q(f);N_GUARD,P_SPINQ(f),XR(E)::QAB(A)
- Refutation
- R(e);P_SPINR(e),XR(E)
- Try
- Actual
- Q(A);
- Vars
- Q(f);N_GUARD,P_SPINQ(f),XR(E)::QAB(A)
- R(e);OGATE,P_SPINR(e),XR(E)::QAB(A)
- R(e);N_GUARD,XQ(A)::S(G)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,N_SPINB(d)::QAR1(A),XQ(f)
- Q(f);N_GUARD::S(G),XQ(f)
- Q(f);N_GUARD::QAR1(A)
- Q(f);SBLOCK::B(F)+R(E),DCHECK
- R(e);N_GUARD,P_PINS(B)::S(G)
- R(e);N_GUARD::S(G)
- R(e);N_GUARD::S(G),XR(e)
- B(a);N_GUARD::S(B)
- B(a);N_GUARD,N_SPINB(d)::S(B)
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).