MESON Chess Problem Database
Problem Display
PID: 206928 (R7/8/7n/7p/7k/8/8/3QK1R1 w - - 0 1)
Knaggs, H
The Chess Player, 1851
#2
4 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kh3
- 2.Qxh5#
- 1...Kh3
- Tries
- 1.Ra2?
- threat
- 2.Rh2#
- 1...Kh3
- 2.Qxh5#
- 1...Sg4!
- threat
- 1.Ra4+?
- 1...Kh3
- 2.Qxh5#
- 1...Sg4!
- 1...Kh3
- 1.Qe2?
- threat
- 2.Qh2#
- 1...Kh3
- 2.Qxh5#
- 1...Sg4!
- threat
- 1.Qf3?
- threat
- 2.Qh1#
- 2.Qg3#
- 1...Sf5
- 2.Qh1#
- 1...Sg4!
- threat
- 1.Qd5?
- threat
- 2.Qh1#
- 1...Kh3
- 2.Qh1#
- 2.Qxh5#
- 1...Sg4!
- threat
- 1.Qd6?
- threat
- 2.Qh2#
- 2.Qg3#
- 1...Kh3
- 2.Qg3#
- 1...Sf5
- 2.Qh2#
- 1...Sg4!
- threat
- 1.Ra2?
- Keys
- 1.Rh8!
- 1...Kh3
- 2.Qxh5#
- 1...Sg4
- 2.Qxg4#
- 1...Sf5
- 2.Rxh5#
- 2.Qg4#
- 2.Qxh5#
- 1...Sf7
- 2.Rxh5#
- 2.Qg4#
- 2.Qxh5#
- 1...Sg8
- 2.Rxh5#
- 2.Qg4#
- 2.Qxh5#
- 1...Kh3
- 1.Rh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(a);P-FLIGHT::QAR2(A),XP(b)
- Tries
- Try
- R(D);
- Threat
- R(D)
- Vars
- K(a);P-FLIGHT::QAR2(A),XP(b)
- Refutation
- S(c);
- Try
- R(D);CHECK
- Vars
- K(a);P-FLIGHT::QAR2(A),XP(b)
- Refutation
- S(c);P_SPINS(c)
- Try
- Q(A);
- Threat
- QAR2(A)
- Vars
- K(a);P-FLIGHT::QAR2(A),XP(b)
- Refutation
- S(c);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(c);::QAR(A)
- Refutation
- S(c);
- Try
- Q(A);
- Threat
- QAR(A)
- Refutation
- S(c);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(a);P-FLIGHT::QAR1(A)
- S(c);::QAR2(A)
- Refutation
- S(c);
- Try
- Actual
- R(D);
- Vars
- K(a);P-FLIGHT::QAR2(A),XP(b)
- S(c);N_GUARD,P_SPINP(b)::QAR1(A),XS(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).