MESON Chess Problem Database
Problem Display
PID: 103621 (4kb2/4P2r/3p3p/B1NQ4/8/4R3/5n2/5K2 w - - 0 1)
Kochanowski, Jan
Przyjazn, 1953
#2
6 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe7
- 2.Qh5#
- 1...Rf7
- 2.Qc6#
- 2.Qa8#
- 1...Rh8
- 2.Qh5#
- 1...Bxe7
- 2.Qg8#
- 1...Bg7
- 2.Qh5#
- 1...Rxe7
- Tries
- 1.Qg8?
- threat
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Rxe7
- 2.Qg6#
- 1...Rf7
- 2.exf8Q#
- 2.exf8R#
- 1...Rg7
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Rh8
- 2.Qg6#
- 2.exf8Q#
- 2.exf8R#
- 1...Sd1
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Sh1
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Sd3
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Sh3
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Sg4
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...d5
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...h5
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...dxc5!
- threat
- 1.Qf5?
- threat
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Rxe7
- 2.Qg6#
- 2.Qh5#
- 1...dxc5
- 2.exf8Q#
- 2.exf8R#
- 1...Rf7
- 2.Qd7#
- 2.Qc8#
- 1...Rg7
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Rh8
- 2.Qg6#
- 2.Qh5#
- 2.exf8Q#
- 2.exf8R#
- 1...Bg7
- 2.Qg6#
- 2.Qh5#
- 1...Sd1
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Sh1
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Sd3
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Sh3
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Sg4
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...d5
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...h5
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8R#
- 1...Bxe7!
- threat
- 1.Qxd6?
- threat
- 2.exf8Q#
- 2.exf8R#
- 1...Kf7
- 2.exf8Q#
- 1...Rxe7
- 2.Qg6#
- 1...Rf7
- 2.Qb8#
- 2.Qc6#
- 2.Qd7#
- 2.Qd8#
- 2.exf8Q#
- 2.exf8R#
- 1...Rg7
- 2.exf8Q#
- 2.exf8R#
- 1...Rh8
- 2.Qg6#
- 2.exf8Q#
- 2.exf8R#
- 1...Bg7
- 2.Qg6#
- 1...Sd1
- 2.exf8Q#
- 2.exf8R#
- 1...Sh1
- 2.exf8Q#
- 2.exf8R#
- 1...Sd3
- 2.exf8Q#
- 2.exf8R#
- 1...Sh3
- 2.exf8Q#
- 2.exf8R#
- 1...Se4
- 2.exf8Q#
- 2.exf8R#
- 1...Sg4
- 2.exf8Q#
- 2.exf8R#
- 1...h5
- 2.exf8Q#
- 2.exf8R#
- 1...Bxe7!
- threat
- 1.Qg8?
- Keys
- 1.Rf3!
- threat
- 2.exf8Q#
- 1...Kxe7
- 2.Qe6#
- 1...Rxe7
- 2.Qa8#
- 1...Bxe7
- 2.Qc6#
- 1...Rf7
- 2.Qxf7#
- 1...Rh8
- 2.Qf7#
- 1...Bg7
- 2.Qf7#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD,P_SPINR(d),XP(F)::QAB(E)
- R(d);N_GUARD::QAB(E)
- B(f);OGATEB,P_SPINB(f),XP(F)::QAR2(E)
- B(f);S_CUTR(d)::QAB(E)
- Tries
- Try
- Q(E);P_PINB(f)
- Threat
- DUALS(3)
- Vars
- R(d);N_GUARD,P_SPINR(d),XP(F)::QAB(E)
- R(d);::PXB(f)=Q
- Refutation
- P(b);XS(D)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- P(b);XS(D)::PXB(f)=Q
- Refutation
- B(f);P_SPINB(f),XP(F)
- Try
- Q(E);XP(b)
- Threat
- PXB(f)=Q
- Vars
- K(e);S_FLIGHT::PXB(f)=Q
- R(d);N_GUARD,P_SPINR(d),XP(F)::QAB(E)
- R(d);::PXB(f)=Q
- B(f);S_CUTR(d)::QAB(E)
- S(a);::PXB(f)=Q
- P(c);::PXB(f)=Q
- Refutation
- B(f);P_SPINB(f),XP(F)
- Try
- Actual
- R(B);
- Threat
- PXB(f)=Q
- Vars
- K(e);OGATEB,P-FLIGHT,XP(F)::QAR1(E)
- R(d);SBLOCK,XP(F)::QAR(E)
- B(f);SBLOCK,XP(F)::QAB(E)
- R(d);N_GUARD::QAB1(E),XR(d)
- R(d);N_GUARD::QAB1(E)
- B(f);S_CUTR(d)::QAB1(E)
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).