MESON Chess Problem Database
Problem Display
PID: 91925 (4Q3/1Nq2p1K/4pP2/6p1/3k2P1/1P1p1B1P/1P1B2N1/8 w - - 0 1)
Karstedt, Max AKS
1st Prize, Der Schachfreund, 1899
#2
11 + 6
| 15 | British Chess Magazine | 1899 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.Bc3#
- 1...Qg3
- 2.Bc3#
- 1...Qf4
- 2.Bc3#
- 1...Qe5
- 2.Bc3#
- 2.Qa4#
- 1...Qb6
- 2.Bc3#
- 1...Qd6
- 2.Bc3#
- 1...Qb8
- 2.Bc3#
- 1...Qd8
- 2.Bc3#
- 1...Qc3
- 2.Bxc3#
- 1...Qd7
- 2.Bc3#
- 1...Qe7
- 2.Bc3#
- 1...e5
- 2.Be3#
- 1...Qh2
- Tries
- 1.Qa4+?
- 1...Qc4
- 2.Bc3#
- 1...Ke5!
- 1...Qc4
- 1.Qb5?
- threat
- 2.Be3#
- 1...Qc5
- 2.Qxc5#
- 1...Qf4
- 2.Bc3#
- 2.Qc5#
- 1...Qe5
- 2.Bc3#
- 2.Qa4#
- 2.Qc4#
- 2.Qb4#
- 1...Qc1!
- threat
- 1.Qc6?
- threat
- 2.Bc3#
- 2.Qe4#
- 1...Ke5
- 2.Bc3#
- 1...Qxb7
- 2.Bc3#
- 2.Qc3#
- 1...Qf4
- 2.Bc3#
- 2.Qc3#
- 2.Qc5#
- 1...Qa5
- 2.Qe4#
- 1...Qe5
- 2.Bc3#
- 2.Qa4#
- 2.Qc3#
- 2.Qc4#
- 1...Qxc6!
- threat
- 1.Qd7+?
- 1...Qd6
- 2.Bc3#
- 2.Qxd6#
- 1...Qxd7
- 2.Bc3#
- 1...Ke5!
- 1...Qd6
- 1.Qxe6?
- threat
- 2.Be3#
- 2.Qd5#
- 2.Qe3#
- 2.Qe4#
- 1...Qxb7
- 2.Be3#
- 2.Qe3#
- 1...Qf4
- 2.Bc3#
- 2.Qd5#
- 1...Qa5
- 2.Be3#
- 2.Qe3#
- 2.Qe4#
- 1...Qe5
- 2.Bc3#
- 2.Qc4#
- 1...Qd6
- 2.Bc3#
- 2.Be3#
- 2.Qe3#
- 2.Qe4#
- 2.Qxd6#
- 1...Qd8
- 2.Bc3#
- 2.Be3#
- 2.Qe3#
- 2.Qe4#
- 1...Qc1
- 2.Qd5#
- 2.Qe3#
- 2.Qe4#
- 2.Qd6#
- 1...Qc4
- 2.Be3#
- 2.Qe3#
- 2.Qe4#
- 1...Qc5
- 2.Be3#
- 2.Qe3#
- 2.Qe4#
- 1...Qc6
- 2.Be3#
- 2.Qe3#
- 1...Qd7
- 2.Bc3#
- 2.Be3#
- 2.Qe3#
- 2.Qe4#
- 1...Qe7
- 2.Bc3#
- 2.Be3#
- 2.Qd5#
- 1...fxe6+!
- threat
- 1.Qd8+?
- 1...Qd6
- 2.Bc3#
- 2.Qxd6#
- 1...Qxd8
- 2.Bc3#
- 1...Qd7
- 2.Bc3#
- 1...Ke5!
- 1...Qd6
- 1.Qa4+?
- Keys
- 1.Qb8!
- 1...Ke5
- 2.Bc3#
- 1...Qxb8
- 2.Bc3#
- 1...Qxb7
- 2.Be3#
- 1...Qh2
- 2.Bc3#
- 2.Be3#
- 1...Qg3
- 2.Bc3#
- 2.Be3#
- 1...Qf4
- 2.Bc3#
- 1...Qa5
- 2.Be3#
- 1...Qe5
- 2.Bc3#
- 1...Qb6
- 2.Bc3#
- 2.Be3#
- 1...Qd6
- 2.Bc3#
- 2.Qxd6#
- 1...Qd8
- 2.Bc3#
- 2.Be3#
- 1...Qc1
- 2.Qd6#
- 1...Qc2
- 2.Be3#
- 2.Qd6#
- 1...Qc3
- 2.Bxc3#
- 2.Be3#
- 2.Qd6#
- 2.bxc3#
- 1...Qc4
- 2.Be3#
- 1...Qc5
- 2.Be3#
- 1...Qc6
- 2.Be3#
- 1...Qd7
- 2.Bc3#
- 2.Be3#
- 1...Qe7
- 2.Bc3#
- 2.Be3#
- 1...Qc8
- 2.Be3#
- 2.Qd6#
- 1...e5
- 2.Be3#
- 1...Ke5
- 1.Qb8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 8
- Sets
- Q(e);N_GUARD,P_PINP(F)::B(B)
- Q(e);N_GUARD::B(B)
- Q(e);N_GUARD::B(B),XQ(e)
- P(d);::B(B)
- Tries
- Try
- Q(K);CHECK
- Vars
- Q(e);P_SPINQ(e)::B(B)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(K);
- Threat
- B(B)
- Vars
- Q(e);N_GUARD::QAB1(K),XQ(e)
- Refutation
- Q(e);
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- K(b);S_FLIGHT::B(B)
- Q(e);::QAR1(K)
- Refutation
- Q(e);XQ(K)
- Try
- Q(K);CHECK
- Vars
- Q(e);XQ(K)::B(B)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(K);XP(d)
- Threat
- DUALS(4)
- Refutation
- P(f);CHECK,XQ(K)
- Try
- Q(K);CHECK
- Vars
- Q(e);XQ(K)::B(B)
- Q(e);P_SPINQ(e)::B(B)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- Q(K);
- Vars
- K(b);P_SPINQ(e),S_FLIGHT::B(B)
- Q(e);N_GUARD,XQ(K)::B(B)
- Q(e);XS(I)::B(B)
- Q(e);N_GUARD::B(B)
- Q(e);::B(B)
- Q(e);OGATE::QAR2(K)
- P(d);SBLOCK::B(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).