MESON Chess Problem Database
Problem Display
PID: 2475 (4Q3/2K5/1N6/6B1/1k6/8/P7/8 w - - 0 1)
Leidecker, Hans
Source?, 0000
#2
5 + 1
| 5454 | Near Snap | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ka5
- 2.Qa4#
- 1...Ka5
- Tries
- 1.Bd2+?
- 1...Kc5
- 2.Qe5#
- 1...Ka3!
- 1...Kc5
- 1.Bf6?
- 1...Ka3
- 2.Qa4#
- 1...Ka5
- 2.Qa4#
- 1...Kc5!
- 1...Ka3
- 1.Be7+?
- 1...Ka5
- 2.Qa4#
- 1...Kc3!
- 1...Ka5
- 1.Qa4+?
- 1...Kc5
- 2.Be3#
- 2.Be7#
- 2.Qc4#
- 1...Kc3!
- 1...Kc5
- 1.Qc6?
- 1...Ka5
- 2.Qa4#
- 1...Ka3!
- 1...Ka5
- 1.Qd7?
- 1...Kc3
- 2.Qd2#
- 1...Ka5
- 2.Qa4#
- 1...Kc5
- 2.Be7#
- 1...Ka3!
- 1...Kc3
- 1.Bd2+?
- Keys
- 1.Qe2!
- 1...Ka3
- 2.Be7#
- 1...Kc3
- 2.Qd2#
- 1...Ka5
- 2.Bd2#
- 1...Kc5
- 2.Qc4#
- 1...Ka3
- 1.Qe2!
This anticipates 5102(1899), 223485(1926), 140936(1980/I), 164208(1988), 157940(1993), 95618(1994), 104591(1999), 169618(2002), 171073(2002), 79157(2004), 153216(2011)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::QAR1(E)
- Tries
- Try
- B(B);CHECK
- Vars
- K(a);S_FLIGHT::QAR2(E)
- Refutation
- K(a);S_FLIGHT
- Try
- B(B);
- Vars
- K(a);S_FLIGHT::QAR1(E)
- Refutation
- K(a);S_FLIGHT
- Try
- B(B);CHECK
- Vars
- K(a);S_FLIGHT::QAR1(E)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(E);CHECK
- Refutation
- K(a);S_FLIGHT
- Try
- Q(E);
- Vars
- K(a);S_FLIGHT::QAR1(E)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(E);
- Vars
- K(a);S_FLIGHT::QAB1(E)
- K(a);S_FLIGHT::QAR1(E)
- K(a);S_FLIGHT::B(B)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- Q(E);
- Vars
- K(a);S_FLIGHT::B(B)
- K(a);S_FLIGHT::QAB1(E)
- K(a);S_FLIGHT::QAR1(E)
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).