MESON Chess Problem Database
Problem Display
PID: 197724 (8/4p3/4Q3/8/3bR3/3k4/P7/3K4 w - - 0 1)
Lewis, Robert Tony
The Problemist, 1981
#2
4 + 3
| 3713 | Snap | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Qb3#
- 1...Ba1
- 2.Qc4#
- 1...Bg1
- 2.Qc4#
- 1...Bb2
- 2.Qc4#
- 1...Bf2
- 2.Qc4#
- 1...Bc3
- 2.Qc4#
- 1...Be3
- 2.Qc4#
- 1...Bc5
- 2.Qc4#
- 1...Be5
- 2.Qc4#
- 1...Bb6
- 2.Qc4#
- 1...Bf6
- 2.Qc4#
- 1...Ba7
- 2.Qc4#
- 1...Bg7
- 2.Qc4#
- 1...Bh8
- 2.Qc4#
- 1...Kc3
- Tries
- 1.Rh4?
- 1...Kc3
- 2.Qb3#
- 1...Ba1
- 2.Qh3#
- 1...Bg1
- 2.Qb3#
- 1...Bb2
- 2.Qh3#
- 1...Bf2
- 2.Qb3#
- 1...Bc3
- 2.Qh3#
- 2.Qe2#
- 2.Qe4#
- 1...Be3
- 2.Qb3#
- 2.Qc4#
- 1...Bc5
- 2.Qb3#
- 1...Bb6
- 2.Qb3#
- 1...Bf6
- 2.Qh3#
- 1...Ba7
- 2.Qb3#
- 1...Bg7
- 2.Qh3#
- 1...Bh8
- 2.Qh3#
- 1...Be5!
- 1...Kc3
- 1.Qb3+?
- 1...Bc3
- 2.Qc2#
- 2.Qc4#
- 2.Qb1#
- 1...Kxe4!
- 1...Bc3
- 1.Qd5?
- threat
- 2.Qxd4#
- 1...Kc3
- 2.Qb3#
- 2.Qxd4#
- 1...e5!
- threat
- 1.Qc6?
- threat
- 2.Qc2#
- 1...Bc3
- 2.Qc4#
- 1...Bc5!
- threat
- 1.a3?
- 1...Be5
- 2.Qc4#
- 1...Ba1
- 2.Qc4#
- 1...Bg1
- 2.Qc4#
- 1...Bb2
- 2.Qc4#
- 1...Bf2
- 2.Qc4#
- 1...Bc3
- 2.Qc4#
- 1...Be3
- 2.Qc4#
- 1...Bc5
- 2.Qc4#
- 1...Bb6
- 2.Qc4#
- 1...Bf6
- 2.Qc4#
- 1...Ba7
- 2.Qc4#
- 1...Bg7
- 2.Qc4#
- 1...Bh8
- 2.Qc4#
- 1...Kc3!
- 1...Be5
- 1.a4?
- 1...Be5
- 2.Qc4#
- 1...Ba1
- 2.Qc4#
- 1...Bg1
- 2.Qc4#
- 1...Bb2
- 2.Qc4#
- 1...Bf2
- 2.Qc4#
- 1...Bc3
- 2.Qc4#
- 1...Be3
- 2.Qc4#
- 1...Bc5
- 2.Qc4#
- 1...Bb6
- 2.Qc4#
- 1...Bf6
- 2.Qc4#
- 1...Ba7
- 2.Qc4#
- 1...Bg7
- 2.Qc4#
- 1...Bh8
- 2.Qc4#
- 1...Kc3!
- 1...Be5
- 1.Rh4?
- Keys
- 1.Rf4!
- 1...Kc3
- 2.Qb3#
- 1...Be5
- 2.Qh3#
- 1...Ba1
- 2.Qh3#
- 1...Bg1
- 2.Qb3#
- 1...Bb2
- 2.Qh3#
- 1...Bf2
- 2.Qb3#
- 1...Bc3
- 2.Qh3#
- 2.Qe2#
- 2.Qe4#
- 1...Be3
- 2.Qb3#
- 2.Qc4#
- 1...Bc5
- 2.Qb3#
- 1...Bb6
- 2.Qb3#
- 1...Bf6
- 2.Qh3#
- 1...Ba7
- 2.Qb3#
- 1...Bg7
- 2.Qh3#
- 1...Bh8
- 2.Qh3#
- 1...Kc3
- 1.Rf4!
Anticipated by 17212(1925-1926)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 11
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- K(a);P-FLIGHT::QAR1(D)
- B(b);::QAB1(D)
- Tries
- Try
- R(C);
- Vars
- K(a);P-FLIGHT::QAR1(D)
- B(b);N_GUARD::QAR(D)
- B(b);N_GUARD::QAR2(D)
- Refutation
- B(b);
- Try
- Q(D);CHECK
- Refutation
- K(a);S_FLIGHT,XR(C)
- Try
- Q(D);P_PINB(b)
- Threat
- QAR1(D),XB(b)
- Refutation
- P(c);
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- B(b);::QAB1(D)
- Refutation
- B(b);
- Try
- P(B);
- Vars
- B(b);::QAB1(D)
- Refutation
- K(a);P-FLIGHT
- Try
- P(B);
- Vars
- B(b);::QAB1(D)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- R(C);
- Vars
- K(a);P-FLIGHT::QAR1(D)
- B(b);N_GUARD::QAR(D)
- B(b);N_GUARD::QAR2(D)
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).