MESON Chess Problem Database
Problem Display
PID: 121010 (8/4p1B1/8/3Q4/8/8/1p1K4/rk6 w - - 0 1)
Anonymous
Source?, 0000
#2
3 + 4
| 3713 | Snap | 2009 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Qh1#
- 1...Ra2
- Tries
- 1.Qb3?
- threat
- 2.Qxb2#
- 1...Ra2
- 2.Qd1#
- 1...e5!
- threat
- 1.Qb7?
- threat
- 2.Qxb2#
- 1...Ka2
- 2.Qxb2#
- 1...Ra2
- 2.Qh1#
- 1...e5!
- threat
- 1.Qd4?
- threat
- 2.Qxb2#
- 1...Ka2
- 2.Qxb2#
- 1...Ra2
- 2.Qg1#
- 1...e5!
- threat
- 1.Qb5?
- threat
- 2.Qxb2#
- 1...Ka2
- 2.Qxb2#
- 1...Ra2
- 2.Qf1#
- 1...e5!
- threat
- 1.Qb3?
- Keys
- 1.Qe5!
- threat
- 2.Qxb2#
- 1...Ka2
- 2.Qxb2#
- 1...Ra2
- 2.Qe1#
- threat
- 1.Qe5!
This anticipates 18923(1959)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);SBLOCK::QAR(B)
- Tries
- Try
- Q(B);P_PINP(c)
- Threat
- QAR1(B),XP(c)
- Vars
- R(a);SBLOCK::QAR2(B)
- Refutation
- P(d);
- Try
- Q(B);P_PINP(c)
- Threat
- QAR1(B),XP(c)
- Vars
- K(b);N_SPINP(c),S_FLIGHT::QAR1(B),XP(c)
- R(a);SBLOCK::QAR(B)
- Refutation
- P(d);
- Try
- Q(B);
- Threat
- QAR1(B),XP(c)
- Vars
- K(b);S_FLIGHT::QAR1(B),XP(c)
- R(a);SBLOCK::QAR(B)
- Refutation
- P(d);
- Try
- Q(B);P_PINP(c)
- Threat
- QAR1(B),XP(c)
- Vars
- K(b);N_SPINP(c),S_FLIGHT::QAR1(B),XP(c)
- R(a);SBLOCK::QAR(B)
- Refutation
- P(d);
- Try
- Actual
- Q(B);
- Threat
- QAR1(B),XP(c)
- Vars
- K(b);S_FLIGHT::QAR1(B),XP(c)
- R(a);SBLOCK::QAR(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).