MESON Chess Problem Database
Problem Display
PID: 109209 (K1N5/N7/p5r1/2k5/R3n1r1/2p3p1/B7/7Q w - - 0 1)
Pribyl, Vaclav
Havel MT, 1960-1961
#2
6 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Qd5#
- 1...Sf2
- 2.Qd5#
- 1...Sg5
- 2.Qd5#
- 1...Sd6
- 2.Qd5#
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Sd2
- Tries
- 1.Be6?
- threat
- 2.Rc4#
- 1...Sd2
- 2.Qd5#
- 2.Qc6#
- 1...Sf2
- 2.Qd5#
- 2.Qc6#
- 1...Sg5
- 2.Qd5#
- 2.Qc6#
- 1...Sd6
- 2.Qd5#
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Rxe6!
- threat
- 1.Bf7?
- threat
- 2.Rc4#
- 1...Sd2
- 2.Qd5#
- 1...Sf2
- 2.Qd5#
- 1...Sg5
- 2.Qd5#
- 1...Sd6
- 2.Qd5#
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Re6!
- threat
- 1.Qf3?
- threat
- 2.Qe3#
- 2.Qf5#
- 1...Rf4
- 2.Qe3#
- 1...R4g5
- 2.Qe3#
- 1...R6g5
- 2.Qe3#
- 1...Re6
- 2.Qe3#
- 1...Rf6
- 2.Qe3#
- 1...Sd2
- 2.Qd5#
- 2.Qf5#
- 1...Sf2
- 2.Qd5#
- 2.Qf5#
- 1...Sg5
- 2.Qd5#
- 2.Qf5#
- 1...Sd6
- 2.Qd5#
- 2.Qc6#
- 1...Sf6
- 2.Qc6#
- 1...Rd6!
- threat
- 1.Qxe4?
- threat
- 2.Rc4#
- 2.Ra5#
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rf4
- 2.Rc4#
- 2.Ra5#
- 2.Qd5#
- 2.Qe5#
- 1...R4g5
- 2.Rc4#
- 2.Ra5#
- 2.Qe3#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 1...R6g5
- 2.Rc4#
- 2.Ra5#
- 2.Qc6#
- 2.Qe7#
- 1...Rb6
- 2.Rc4#
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rd6
- 2.Rc4#
- 2.Ra5#
- 1...Re6
- 2.Rc4#
- 2.Ra5#
- 2.Qd5#
- 1...Rf6
- 2.Rc4#
- 2.Ra5#
- 2.Qd5#
- 2.Qe5#
- 1...a5
- 2.Rc4#
- 2.Rxa5#
- 2.Qd5#
- 2.Qf5#
- 2.Qe5#
- 1...Rxe4!
- threat
- 1.Qd1?
- threat
- 2.Rc4#
- 2.Qd4#
- 2.Qd5#
- 1...R4g5
- 2.Rc4#
- 2.Qd4#
- 1...R6g5
- 2.Rc4#
- 2.Qd4#
- 1...Rd6
- 2.Rc4#
- 1...Sf2
- 2.Qd5#
- 1...Sg5
- 2.Qd5#
- 1...Sd6
- 2.Qd5#
- 1...Sf6
- 2.Qd6#
- 1...Sd2!
- threat
- 1.Qe1?
- threat
- 2.Qe3#
- 1...Sd2
- 2.Qe5#
- 1...Sf2
- 2.Qe5#
- 1...Sg5
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...Sf6
- 2.Qe7#
- 1...Rd6!
- threat
- 1.Be6?
- Keys
- 1.Qb1!
- threat
- 2.Qb4#
- 1...Rb6
- 2.Qxb6#
- 1...Sd2
- 2.Qf5#
- 1...Sf2
- 2.Qf5#
- 1...Sg5
- 2.Qf5#
- 1...Sd6
- 2.Qb6#
- 1...Sf6
- 2.Qb6#
- 1...a5
- 2.Qb5#
- threat
- 1.Qb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(c);OGATE::QAR1(A)
- Tries
- Try
- B(B);
- Threat
- R1(C)
- Vars
- S(c);OGATE::QAR1(A)
- Refutation
- R(g);XB(B)
- Try
- B(B);
- Threat
- R1(C)
- Vars
- S(c);OGATE::QAR1(A)
- Refutation
- R(g);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(d);::QAB(A)
- R(g);::QAB(A)
- S(c);OGATE::QAR1(A)
- Refutation
- R(g);
- Try
- Q(A);XS(c)
- Threat
- DUALS(5)
- Refutation
- R(d);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(g);::R1(C)
- S(c);::QAR1(A)
- S(c);N_GUARD,S_CUTR(g)::QAB1(A)
- Refutation
- S(c);
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(c);OGATE::QAR2(A)
- S(c);OGATE::QAB(A)
- Refutation
- R(g);
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(g);N_GUARD::QAB1(A),XR(g)
- S(c);OGATE::QAR(A)
- S(c);S_CUTR(g)::QAB1(A)
- P(f);N_GUARD::QAR1(A)
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).