MESON Chess Problem Database
Problem Display
PID: 193904 (2k1B2b/K3Pp1r/1p1P2p1/7p/1p6/4Q2b/8/8 w - - 0 1)
Hansen, Lorenz
Marble, Murray
Pittsburgh Gazette-Times, 1916
#2
5 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rg7
- 2.Qc1#
- 1...Bf6
- 2.Qxh3#
- 1...b5
- 2.Qc5#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qc1#
- 1...Rg7
- Tries
- 1.Ba4?
- threat
- 2.e8Q#
- 2.e8R#
- 1...Rh6
- 2.e8Q#
- 2.e8R#
- 1...Rg7
- 2.Qc1#
- 2.e8Q#
- 2.e8R#
- 1...Bf1
- 2.e8Q#
- 2.e8R#
- 1...Bg2
- 2.e8Q#
- 2.e8R#
- 1...Bg4
- 2.e8Q#
- 2.e8R#
- 1...Bf5
- 2.e8Q#
- 2.e8R#
- 1...Be6
- 2.e8Q#
- 2.e8R#
- 1...Ba1
- 2.e8Q#
- 2.e8R#
- 1...Bb2
- 2.e8Q#
- 2.e8R#
- 1...Bc3
- 2.e8Q#
- 2.e8R#
- 1...Bd4
- 2.e8Q#
- 2.e8R#
- 1...Be5
- 2.e8Q#
- 2.e8R#
- 1...Bf6
- 2.Qxh3#
- 1...Bg7
- 2.e8Q#
- 2.e8R#
- 1...b3
- 2.e8Q#
- 2.e8R#
- 1...h4
- 2.e8Q#
- 2.e8R#
- 1...g5
- 2.e8Q#
- 2.e8R#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qc1#
- 1...Bd7!
- threat
- 1.Bc6?
- threat
- 2.e8Q#
- 2.e8R#
- 1...Rh6
- 2.e8Q#
- 2.e8R#
- 1...Rg7
- 2.e8Q#
- 2.e8R#
- 1...Bf1
- 2.e8Q#
- 2.e8R#
- 1...Bg2
- 2.e8Q#
- 2.e8R#
- 1...Bg4
- 2.e8Q#
- 2.e8R#
- 1...Bf5
- 2.e8Q#
- 2.e8R#
- 1...Be6
- 2.e8Q#
- 2.e8R#
- 1...Bd7
- 2.Bb7#
- 1...Ba1
- 2.e8Q#
- 2.e8R#
- 1...Bb2
- 2.e8Q#
- 2.e8R#
- 1...Bc3
- 2.e8Q#
- 2.e8R#
- 1...Bd4
- 2.e8Q#
- 2.e8R#
- 1...Be5
- 2.e8Q#
- 2.e8R#
- 1...Bf6
- 2.Qxh3#
- 1...Bg7
- 2.e8Q#
- 2.e8R#
- 1...b3
- 2.e8Q#
- 2.e8R#
- 1...h4
- 2.e8Q#
- 2.e8R#
- 1...b5
- 2.e8Q#
- 2.e8R#
- 1...g5
- 2.e8Q#
- 2.e8R#
- 1...f5
- 2.Qe6#
- 1...f6!
- threat
- 1.Qxb6?
- threat
- 2.Qc5#
- 2.Qc7#
- 2.Qd8#
- 2.Qa6#
- 2.Qc6#
- 2.Qb7#
- 2.Qb8#
- 1...Bf1
- 2.Qc5#
- 2.Qc7#
- 2.Qd8#
- 2.Qc6#
- 2.Qb7#
- 2.Qb8#
- 2.d7#
- 1...Bg2
- 2.Qc7#
- 2.Qd8#
- 2.Qb8#
- 2.d7#
- 1...Bd7
- 2.Qc7#
- 2.Qd8#
- 2.Qa6#
- 2.Qb7#
- 2.Qb8#
- 1...Bd4!
- threat
- 1.Qf3?
- threat
- 2.Qc6#
- 2.Qb7#
- 2.Qa8#
- 1...Bd7
- 2.Qb7#
- 2.Qa8#
- 1...Bg2!
- threat
- 1.Qe4?
- threat
- 2.Qc6#
- 2.Qb7#
- 2.Qa8#
- 2.Qc4#
- 1...Bf1
- 2.Qc6#
- 2.Qb7#
- 2.Qa8#
- 1...Be6
- 2.Qc6#
- 2.Qb7#
- 2.Qa8#
- 1...Bd7
- 2.Qb7#
- 2.Qa8#
- 1...Bd4
- 2.Qc6#
- 2.Qb7#
- 2.Qa8#
- 1...b5
- 2.Qc6#
- 2.Qb7#
- 2.Qa8#
- 1...Bg2!
- threat
- 1.d7+?
- 1...Kc7
- 2.Qxb6#
- 2.d8Q#
- 1...Bxd7!
- 1...Kc7
- 1.Ba4?
- Keys
- 1.Bb5!
- threat
- 2.e8Q#
- 2.e8R#
- 1...Rh6
- 2.e8Q#
- 2.e8R#
- 1...Rg7
- 2.Qc1#
- 2.e8Q#
- 2.e8R#
- 1...Bf1
- 2.e8Q#
- 2.e8R#
- 1...Bg2
- 2.e8Q#
- 2.e8R#
- 1...Bg4
- 2.e8Q#
- 2.e8R#
- 1...Bf5
- 2.e8Q#
- 2.e8R#
- 1...Be6
- 2.e8Q#
- 2.e8R#
- 1...Bd7
- 2.Ba6#
- 1...Ba1
- 2.e8Q#
- 2.e8R#
- 1...Bb2
- 2.e8Q#
- 2.e8R#
- 1...Bc3
- 2.e8Q#
- 2.e8R#
- 1...Bd4
- 2.e8Q#
- 2.e8R#
- 1...Be5
- 2.e8Q#
- 2.e8R#
- 1...Bf6
- 2.Qxh3#
- 1...Bg7
- 2.e8Q#
- 2.e8R#
- 1...b3
- 2.e8Q#
- 2.e8R#
- 1...h4
- 2.e8Q#
- 2.e8R#
- 1...g5
- 2.e8Q#
- 2.e8R#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qc1#
- threat
- 1.Bb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(g);S_CUTB(i)::QAB(A)
- B(i);S_CUTP(f)::QAB(A),XB(a)
- P(d);N_GUARD::QAR(A)
- P(f);N_GUARD,P_PINP(D),S_CUTB(a)::QAB(A)
- P(f);P_PINP(D),S_CUTB(i)::QAB(A)
- Tries
- Try
- B(E);
- Threat
- P=Q
- Vars
- R(g);::P=Q
- B(a);::P=Q
- B(i);::P=Q
- B(i);S_CUTP(f)::QAB(A),XB(a)
- P(b);::P=Q
- P(c);::P=Q
- P(e);::P=Q
- P(f);N_GUARD,P_PINP(D),S_CUTB(a)::QAB(A)
- P(f);P_PINP(D),S_CUTB(i)::QAB(A)
- Refutation
- B(a);
- Try
- B(E);
- Threat
- P=Q
- Vars
- R(g);::P=Q
- B(a);::P=Q
- B(a);SBLOCK::B(E)
- B(i);::P=Q
- B(i);S_CUTP(f)::QAB(A),XB(a)
- P(b);::P=Q
- P(c);::P=Q
- P(d);::P=Q
- P(e);::P=Q
- P(f);N_GUARD,P_PINP(D),S_CUTB(a)::QAB(A)
- Refutation
- P(f);P_PINP(D)
- Try
- Q(A);XP(d)
- Threat
- DUALS(7)
- Refutation
- B(i);P_PINQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Refutation
- B(a);
- Try
- Q(A);
- Threat
- DUALS(4)
- Refutation
- B(a);
- Try
- P(B);CHECK
- Refutation
- B(a);XP(B)
- Try
- Actual
- B(E);
- Threat
- P=Q
- Vars
- R(g);::P=Q
- B(a);::P=Q
- B(a);SBLOCK::B(E)
- B(i);::P=Q
- B(i);S_CUTP(f)::QAB(A),XB(a)
- P(b);::P=Q
- P(c);::P=Q
- P(e);::P=Q
- P(f);N_GUARD,P_PINP(D),S_CUTB(a)::QAB(A)
- P(f);P_PINP(D),S_CUTB(i)::QAB(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).