MESON Chess Problem Database
Problem Display
PID: 104004 (8/2p5/2p1Q3/1p1p4/pB1kn2K/R7/BP3p2/5N2 w - - 0 1)
Jancek, Jan
Sach, 1955
#2
7 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Sg3
- 2.Qe3#
- 1...Sc5
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...c5
- 2.Qxd5#
- 1...Sd2
- Tries
- 1.Kh3?
- 1...Sc3
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sg3
- 2.Qe3#
- 1...Sc5
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...c5
- 2.Qxd5#
- 1...Sg5+!
- 1...Sc3
- 1.Kg4?
- 1...Sc3
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sg3
- 2.Qe3#
- 1...Sc5
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...c5
- 2.Qxd5#
- 1...Sf6+!
- 1...Sc3
- 1.Se3?
- threat
- 2.Sc2#
- 2.Sf5#
- 1...f1Q
- 2.Sc2#
- 1...f1R
- 2.Sc2#
- 1...Sg3
- 2.Sc2#
- 1...Sd6
- 2.Sc2#
- 1...Sc3!
- threat
- 1.Bd2?
- threat
- 2.Be3#
- 1...Sxd2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Kc5!
- threat
- 1.Bc5+?
- 1...Sxc5
- 2.Qe3#
- 1...Kxc5!
- 1...Sxc5
- 1.Bd6?
- threat
- 2.Qe5#
- 1...Sxd6
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...cxd6!
- threat
- 1.Be7?
- 1...Sc3
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sg3
- 2.Qe3#
- 1...Sc5
- 2.Bf6#
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...c5
- 2.Qxd5#
- 1...b4!
- 1...Sc3
- 1.Bf8?
- 1...Sc3
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sg3
- 2.Qe3#
- 1...Sc5
- 2.Bg7#
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...c5
- 2.Qxd5#
- 1...b4!
- 1...Sc3
- 1.Rc3?
- 1...Sxc3
- 2.Qe3#
- 1...Sd2
- 2.Bc5#
- 2.Qe3#
- 1...Sg3
- 2.Bc5#
- 2.Qe3#
- 1...Sc5
- 2.Bxc5#
- 2.Qe3#
- 1...Sg5
- 2.Bc5#
- 2.Qe3#
- 1...Sd6
- 2.Bc5#
- 2.Qe3#
- 1...Sf6
- 2.Bc5#
- 2.Qe3#
- 1...c5
- 2.Qxd5#
- 1...a3!
- 1...Sxc3
- 1.Re3?
- 1...Sd2
- 2.Qe5#
- 2.Qf6#
- 1...Sc3
- 2.Qe5#
- 2.Qf6#
- 2.bxc3#
- 1...Sg3
- 2.Qe5#
- 2.Qf6#
- 1...Sc5
- 2.Bc3#
- 2.Qe5#
- 2.Qf6#
- 1...Sg5
- 2.Qe5#
- 2.Qf6#
- 1...Sd6
- 2.Qe5#
- 2.Qf6#
- 1...Sf6
- 2.Qe5#
- 2.Qxf6#
- 1...c5
- 2.Qxd5#
- 1...a3!
- 1...Sd2
- 1.Rf3?
- 1...Sd2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 2.bxc3#
- 1...Sg3
- 2.Qe3#
- 1...Sc5
- 2.Bc3#
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...c5
- 2.Qxd5#
- 1...a3!
- 1...Sd2
- 1.Rg3?
- 1...Sxg3
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 2.bxc3#
- 1...Sc5
- 2.Bc3#
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...c5
- 2.Qxd5#
- 1...a3!
- 1...Sxg3
- 1.Rh3?
- 1...Sg3
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 2.bxc3#
- 1...Sc5
- 2.Bc3#
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...c5
- 2.Qxd5#
- 1...a3!
- 1...Sg3
- 1.Qe7?
- 1...Sc3
- 2.Qe3#
- 1...Sd2
- 2.Bc5#
- 2.Qe3#
- 1...Sg3
- 2.Bc5#
- 2.Qe3#
- 1...Sc5
- 2.Bxc5#
- 2.Qe3#
- 1...Sg5
- 2.Bc5#
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sf6
- 2.Bc5#
- 2.Qe3#
- 1...c5!
- 1...Sc3
- 1.Qe8?
- 1...Sc3
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sg3
- 2.Qe3#
- 1...Sc5
- 2.Qe3#
- 1...Sg5
- 2.Qe3#
- 1...Sd6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...c5!
- 1...Sc3
- 1.Kh3?
- Keys
- 1.Qf5!
- 1...Sd2
- 2.Rd3#
- 1...Sc3
- 2.bxc3#
- 1...Sg3
- 2.Rd3#
- 1...Sc5
- 2.Bc3#
- 1...Sg5
- 2.Rd3#
- 1...Sd6
- 2.Rd3#
- 1...Sf6
- 2.Rd3#
- 1...c5
- 2.Qxd5#
- 1...Sd2
- 1.Qf5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(d);OGATE::QAB1(G)
- P(g);N_GUARD::QAR1(G),XP(f)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- S(d);OGATE::QAB1(G)
- P(g);N_GUARD::QAR1(G),XP(f)
- Refutation
- S(d);CHECK
- Try
- K(F);P-FLIGHT
- Vars
- S(d);OGATE::QAB1(G)
- P(g);N_GUARD::QAR1(G),XP(f)
- Refutation
- S(d);CHECK
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- P(a);::S(A)
- S(d);::S(A)
- Refutation
- S(d);
- Try
- B(E);
- Threat
- B(E)
- Vars
- S(d);OGATE,XB(E)::QAB1(G)
- S(d);OGATE::QAB1(G)
- Refutation
- K(c);S_FLIGHT
- Try
- B(E);CHECK
- Vars
- S(d);OGATE,SBLOCK,XB(E)::QAB1(G)
- Refutation
- K(c);S_FLIGHT,XB(E)
- Try
- B(E);
- Threat
- QAB1(G)
- Vars
- S(d);OGATE,XB(E)::QAB1(G)
- S(d);OGATE::QAB1(G)
- Refutation
- P(h);XB(E)
- Try
- B(E);
- Vars
- S(d);OGATE::QAB1(G)
- P(g);N_GUARD::QAR1(G),XP(f)
- Refutation
- P(e);
- Try
- B(E);
- Vars
- S(d);OGATE::QAB1(G)
- P(g);N_GUARD::QAR1(G),XP(f)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- S(d);OGATE,XR(D)::QAB1(G)
- P(g);N_GUARD::QAR1(G),XP(f)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- P(g);N_GUARD::QAR1(G),XP(f)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(d);OGATE::QAB1(G)
- P(g);N_GUARD::QAR1(G),XP(f)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(d);OGATE,XR(D)::QAB1(G)
- S(d);OGATE::QAB1(G)
- P(g);N_GUARD::QAR1(G),XP(f)
- Refutation
- P(b);
- Try
- R(D);
- Vars
- S(d);OGATE::QAB1(G)
- P(g);N_GUARD::QAR1(G),XP(f)
- Refutation
- P(b);
- Try
- Q(G);
- Vars
- S(d);OGATE::QAB1(G)
- Refutation
- P(g);
- Try
- Q(G);
- Vars
- S(d);OGATE::QAB1(G)
- Refutation
- P(g);
- Try
- Actual
- Q(G);
- Vars
- S(d);::R1(D)
- S(d);OGATE::P(C),XS(d)
- S(d);N_GUARD,SBLOCK::B(E)
- P(g);N_GUARD::QAR1(G),XP(f)
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).