MESON Chess Problem Database
Problem Display
PID: 207494 (5Q2/8/1p1Pp3/4k1p1/4N3/4K3/8/8 w - - 0 1)
Dixon, Joseph
Australasian (The), 1871
#2
4 + 4
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Tries
- 1.Sc3?
- 1...g4
- 2.Qf4#
- 1...b5!
- 1...g4
- 1.Qh6?
- threat
- 2.Qxg5#
- 1...Kf5
- 2.Qxg5#
- 1...g4
- 2.Qg5#
- 2.Qh5#
- 1...Kd5!
- threat
- 1.Qe7?
- threat
- 2.Qxg5#
- 1...Kf5
- 2.Qxg5#
- 1...g4
- 2.Qg5#
- 1...Kd5!
- threat
- 1.Qg7+?
- 1...Kf5
- 2.Qxg5#
- 1...Kd5!
- 1...Kf5
- 1.Qd8?
- threat
- 2.Qxg5#
- 1...Kf5
- 2.Qxg5#
- 1...g4
- 2.Qg5#
- 1...Kd5!
- threat
- 1.Qe8?
- threat
- 2.Qb5#
- 1...Kd5
- 2.Qb5#
- 1...b5
- 2.Qxb5#
- 1...Kf5!
- threat
- 1.Qg8?
- threat
- 2.Qxg5#
- 1...Kf5
- 2.Qxg5#
- 1...g4
- 2.Qg5#
- 1...Kd5!
- threat
- 1.Sc3?
- Keys
- 1.Qf1!
- threat
- 2.Qb5#
- 1...Kd5
- 2.Qb5#
- 1...b5
- 2.Qxb5#
- threat
- 1.Qf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(B);
- Vars
- P(b);N_GUARD::QAB1(D)
- Refutation
- P(c);
- Try
- Q(D);
- Threat
- QAR2(D),XP(b)
- Vars
- K(a);P-FLIGHT::QAR1(D),XP(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(D);P_PINP(d)
- Threat
- QAR2(D),XP(b)
- Vars
- K(a);N_SPINP(d),P-FLIGHT::QAR1(D),XP(b)
- P(b);::QAR2(D)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT
- Try
- Q(D);CHECK
- Vars
- K(a);P-FLIGHT::QAR1(D),XP(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(D);
- Threat
- QAR2(D),XP(b)
- Vars
- K(a);P-FLIGHT::QAR1(D),XP(b)
- P(b);::QAR2(D)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(D);P_PINP(d)
- Threat
- QAR(D)
- Vars
- K(a);N_SPINP(d),P-FLIGHT::QAR2(D)
- P(c);::QAR(D),XP(c)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT
- Try
- Q(D);
- Threat
- QAR2(D),XP(b)
- Vars
- K(a);P-FLIGHT::QAR1(D),XP(b)
- P(b);::QAR2(D)
- Refutation
- K(a);P-FLIGHT,P_SPINP(d)
- Try
- Actual
- Q(D);
- Threat
- QAR(D)
- Vars
- K(a);P-FLIGHT::QAR2(D)
- P(c);::QAR(D),XP(c)
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).