MESON Chess Problem Database
Problem Display
PID: 207112 (1b1q4/4N2b/1pQ5/2p5/2Bk1rN1/1K1P4/8/8 w - - 0 1)
Healey, Frank
A Collection of Two Hundred Chess Problems (Healey), 1866
#2
6 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qc7
- 2.Qd5#
- 1...Qxe7
- 2.Qd5#
- 1...Qd5
- 2.Qxd5#
- 1...Qc8
- 2.Qd5#
- 1...Qe8
- 2.Qd5#
- 1...Qf8
- 2.Qd5#
- 1...Qh8
- 2.Qd5#
- 1...Rf5
- 2.Qe4#
- 1...Bd6
- 2.Qd5#
- 1...Qc7
- Tries
- 1.Sf5+?
- 1...Rxf5
- 2.Qe4#
- 1...Bxf5!
- 1...Rxf5
- 1.Qh1?
- threat
- 2.Sc6#
- 2.Qa1#
- 1...Qxe7
- 2.Qd5#
- 2.Qa1#
- 1...Bxd3
- 2.Sc6#
- 1...Qc7
- 2.Qd5#
- 2.Qa1#
- 1...Qd5
- 2.Qxd5#
- 2.Qa1#
- 1...Qd6
- 2.Qa1#
- 1...Qd7
- 2.Qa1#
- 1...Qc8
- 2.Qd5#
- 2.Qa1#
- 1...Qe8
- 2.Qd5#
- 2.Qa1#
- 1...Rf1
- 2.Sc6#
- 1...Rf2
- 2.Sc6#
- 1...Rf6
- 2.Qa1#
- 1...Be4
- 2.Qa1#
- 1...Rxg4!
- threat
- 1.Qg2?
- threat
- 2.Sc6#
- 2.Qb2#
- 1...Qxe7
- 2.Qd5#
- 2.Qb2#
- 1...Bxd3
- 2.Sc6#
- 1...Qc7
- 2.Qd5#
- 2.Qb2#
- 1...Qd5
- 2.Qxd5#
- 2.Qb2#
- 1...Qd6
- 2.Qb2#
- 1...Qd7
- 2.Qb2#
- 1...Qc8
- 2.Qd5#
- 2.Qb2#
- 1...Qe8
- 2.Qd5#
- 2.Qb2#
- 1...Rf2
- 2.Sc6#
- 2.Qxf2#
- 1...Rf6
- 2.Qb2#
- 1...Be4
- 2.Qb2#
- 1...Rxg4!
- threat
- 1.Qe4+?
- 1...Rxe4
- 2.Sc6#
- 1...Bxe4!
- 1...Rxe4
- 1.Qd7+?
- 1...Bd6
- 2.Sc6#
- 1...Qxd7!
- 1...Bd6
- 1.Qxc5+?
- 1...bxc5
- 2.Sc6#
- 1...Kxc5!
- 1...bxc5
- 1.Qd6+?
- 1...Bxd6
- 2.Sc6#
- 1...Qxd6!
- 1...Bxd6
- 1.Qe6?
- threat
- 2.Sc6#
- 2.Qe3#
- 1...Qxe7
- 2.Qd5#
- 1...Rxg4
- 2.Sc6#
- 1...Qc7
- 2.Qd5#
- 2.Qe3#
- 1...Qd5
- 2.Qxd5#
- 2.Qe3#
- 1...Qd6
- 2.Qe3#
- 1...Qd7
- 2.Qe3#
- 1...Qc8
- 2.Qd5#
- 2.Qe3#
- 1...Qe8
- 2.Qd5#
- 2.Qe3#
- 1...Rf3
- 2.Sc6#
- 1...Re4
- 2.Sc6#
- 1...Be5
- 2.Sc6#
- 2.Qxe5#
- 1...Be4!
- threat
- 1.Qf6+?
- 1...Be5
- 2.Sc6#
- 2.Qxe5#
- 1...Rxf6!
- 1...Be5
- 1.Sf5+?
- Keys
- 1.Qf3!
- threat
- 2.Sc6#
- 2.Qe3#
- 1...Qxe7
- 2.Qd5#
- 1...Rxf3
- 2.Sc6#
- 1...Rxg4
- 2.Sc6#
- 1...Qc7
- 2.Qd5#
- 2.Qe3#
- 1...Qd5
- 2.Qxd5#
- 2.Qe3#
- 1...Qd6
- 2.Qe3#
- 1...Qd7
- 2.Qe3#
- 1...Qc8
- 2.Qd5#
- 2.Qe3#
- 1...Qe8
- 2.Qd5#
- 2.Qe3#
- 1...Re4
- 2.Sc6#
- 1...Rf6
- 2.Qe3#
- 1...Be4
- 2.Qe3#
- threat
- 1.Qf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 8
- Sets
- Q(g);N_GUARD::QAR1(E)
- Q(g);N_GUARD,XS(F)::QAR1(E)
- Q(g);N_GUARD,P_PINB(C)::QAR1(E),XQ(g)
- R(b);N_GUARD,S_CUTB(e)::QAR1(E)
- B(f);S_CUTQ(g)::QAR1(E)
- Tries
- Try
- S(F);CHECK
- Vars
- R(b);XS(F)::QAR1(E)
- Refutation
- B(e);XS(F)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(e);XP(B)::S(F)
- Q(g);::QAB(E)
- R(b);::S(F)
- R(b);::QAB(E)
- B(e);::QAB(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(e);XP(B)::S(F)
- Q(g);::QAB(E)
- R(b);::QAB(E)
- B(e);::QAB(E)
- Refutation
- R(b);XS(D)
- Try
- Q(E);CHECK
- Vars
- R(b);XQ(E)::S(F)
- Refutation
- B(e);XQ(E)
- Try
- Q(E);CHECK
- Vars
- B(f);P_SPINB(f)::S(F)
- Refutation
- Q(g);XQ(E)
- Try
- Q(E);CHECK,XP(c)
- Vars
- P(d);SBLOCK,XQ(E)::S(F)
- Refutation
- K(a);S_FLIGHT,XQ(E)
- Try
- Q(E);CHECK
- Vars
- B(f);XQ(E)::S(F)
- Refutation
- Q(g);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,XS(F)::QAR1(E)
- R(b);XS(D)::S(F)
- Q(g);::QAB1(E)
- R(b);P_PINP(B)::S(F)
- R(b);::S(F)
- Refutation
- B(e);
- Try
- Q(E);CHECK
- Refutation
- R(b);XQ(E)
- Try
- Actual
- Q(E);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,XS(F)::QAR1(E)
- R(b);P_PINP(B),XQ(E)::S(F)
- R(b);XS(D)::S(F)
- Q(g);::QAB1(E)
- R(b);::S(F)
- R(b);::QAB1(E)
- B(e);::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).