MESON Chess Problem Database
Problem Display
PID: 227489 (1Q6/Kp1P4/8/kB6/8/2P5/8/8 w - - 0 1)
Seyferth, Paul Karl Edmund
Bitterfelder Anzeiger, 1926
#2
5 + 2
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...b6
- 2.Qxb6#
- 1...b6
- Tries
- 1.Qd6?
- threat
- 2.Qb4#
- 2.Qb6#
- 1...b6
- 2.Qb4#
- 2.Qxb6#
- 1...Kxb5!
- threat
- 1.Qc7+?
- 1...b6
- 2.Qxb6#
- 1...Kxb5!
- 1...b6
- 1.Qc8?
- 1...b6
- 2.Qa6#
- 1...Kxb5!
- 1...b6
- 1.Qd8+?
- 1...b6
- 2.Qxb6#
- 1...Kxb5!
- 1...b6
- 1.d8Q+?
- 1...b6
- 2.Qdxb6#
- 2.Qbxb6#
- 1...Kxb5!
- 1...b6
- 1.d8S?
- 1...b6
- 2.Qxb6#
- 1...Kxb5!
- 1...b6
- 1.d8B+?
- 1...b6
- 2.Qxb6#
- 1...Kxb5!
- 1...b6
- 1.d8R?
- 1...b6
- 2.Qxb6#
- 1...Kxb5!
- 1...b6
- 1.Qd6?
- Keys
- 1.Bc6!
- 1...bxc6
- 2.Qb4#
- 1...b5
- 2.Qxb5#
- 1...b6
- 2.Qxb6#
- 1...bxc6
- 1.Bc6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- P(b);OGATE::QAB1(E),XP(b)
- Tries
- Try
- Q(E);
- Threat
- DUALS(2)
- Refutation
- K(a);P-FLIGHT,XB(B)
- Try
- Q(E);CHECK
- Vars
- P(b);P_SPINP(b)::QAB1(E),XP(b)
- Refutation
- K(a);P-FLIGHT,XB(B)
- Try
- Q(E);
- Vars
- P(b);OGATE::QAR1(E)
- Refutation
- K(a);P-FLIGHT,XB(B)
- Try
- Q(E);CHECK
- Vars
- P(b);P_SPINP(b)::QAB1(E),XP(b)
- Refutation
- K(a);P-FLIGHT,XB(B)
- Try
- P(D);CHECK
- Refutation
- K(a);P-FLIGHT,P_SPINP(b),XB(B)
- Try
- P(D);
- Vars
- P(b);OGATE::QAB1(E),XP(b)
- Refutation
- K(a);P-FLIGHT,P_SPINP(b),XB(B)
- Try
- P(D);CHECK
- Vars
- P(b);OGATE,P_SPINP(b)::QAB1(E),XP(b)
- Refutation
- K(a);P-FLIGHT,P_SPINP(b),XB(B)
- Try
- P(D);
- Vars
- P(b);OGATE::QAB1(E),XP(b)
- Refutation
- K(a);P-FLIGHT,P_SPINP(b),XB(B)
- Try
- Actual
- B(B);
- Vars
- P(b);OGATE,XB(B)::QAB1(E)
- P(b);OGATE::QAR1(E),XP(b)
- P(b);OGATE::QAB1(E),XP(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).