MESON Chess Problem Database
Problem Display
PID: 100939 (3R4/8/K1kB4/8/1p2P3/2r5/7p/2Q4R w - - 0 1)
Fegan, Bertram George
Good Companions, 1921
#2
6 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxc1
- 2.Rxc1#
- 1...Rc2
- 2.Qxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Qxc5#
- 1...b3
- 2.Qxc3#
- 1...Rxc1
- Tries
- 1.Bxh2?
- 1...Rxc1
- 2.Rxc1#
- 1...Rc2
- 2.Qxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Qh6#
- 1...b3
- 2.Qxc3#
- 1...Kc5!
- 1...Rxc1
- 1.Bg3?
- 1...Rxc1
- 2.Rxc1#
- 1...Rc2
- 2.Qxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Qh6#
- 1...b3
- 2.Qxc3#
- 1...Kc5!
- 1...Rxc1
- 1.Bxb4?
- threat
- 2.Qxc3#
- 1...Rxc1
- 2.Rxc1#
- 1...Rc2
- 2.Qxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Qxc5#
- 1...Kc7!
- threat
- 1.Be7?
- 1...Rxc1
- 2.Rxc1#
- 1...Rc2
- 2.Qxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Qxc5#
- 1...b3
- 2.Qxc3#
- 1...Kc7!
- 1...Rxc1
- 1.Bb8?
- 1...Rxc1
- 2.Rxc1#
- 1...Rc2
- 2.Qxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Rd6#
- 2.Qh6#
- 1...b3
- 2.Qxc3#
- 1...Kc5!
- 1...Rxc1
- 1.Bf8?
- 1...Rxc1
- 2.Rxc1#
- 1...Rc2
- 2.Qxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Qxc5#
- 1...b3
- 2.Qxc3#
- 1...Kc7!
- 1...Rxc1
- 1.Rxh2?
- 1...Rc2
- 2.Rxc2#
- 2.Qxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Qxc5#
- 1...b3
- 2.Qxc3#
- 1...Rxc1!
- 1...Rc2
- 1.Qg5?
- threat
- 2.Qb5#
- 2.Qd5#
- 1...Rd3
- 2.Qb5#
- 2.Qc5#
- 1...Rc5
- 2.Qxc5#
- 1...Ra3+!
- threat
- 1.Qc2?
- threat
- 2.Qa4#
- 1...Rc5
- 2.Qxc5#
- 1...b3
- 2.Qxc3#
- 1...Rxc2!
- threat
- 1.Bxh2?
- Keys
- 1.Be5!
- 1...Kc5
- 2.Rc8#
- 1...Rxc1
- 2.Rxc1#
- 1...Rc2
- 2.Qxc2#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Qh6#
- 1...b3
- 2.Qxc3#
- 1...Kc5
- 1.Be5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);N_SPINR(b),OGATE,XQ(A)::R(B),XR(b)
- R(b);OGATEB::QAR(A),XR(b)
- R(b);OGATE::QAR2(A),XR(b)
- R(b);OGATE::QAR1(A),XR(b)
- P(c);N_GUARD::QAR(A),XR(b)
- Tries
- Try
- B(E);XP(a)
- Vars
- R(b);N_SPINR(b),OGATE,XQ(A)::R(B),XR(b)
- R(b);OGATEB::QAR(A),XR(b)
- R(b);OGATE::QAR2(A),XR(b)
- R(b);SBLOCK::QAR(A)
- P(c);N_GUARD::QAR(A),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- B(E);
- Vars
- R(b);N_SPINR(b),OGATE,XQ(A)::R(B),XR(b)
- R(b);OGATEB::QAR(A),XR(b)
- R(b);OGATE::QAR2(A),XR(b)
- R(b);SBLOCK::QAR(A)
- P(c);N_GUARD::QAR(A),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- B(E);XP(c)
- Threat
- QAR(A),XR(b)
- Vars
- R(b);N_SPINR(b),OGATE,XQ(A)::R(B),XR(b)
- R(b);OGATEB::QAR(A),XR(b)
- R(b);OGATE::QAR2(A),XR(b)
- R(b);OGATE::QAR1(A),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- B(E);
- Vars
- R(b);N_SPINR(b),OGATE,XQ(A)::R(B),XR(b)
- R(b);OGATEB::QAR(A),XR(b)
- R(b);OGATE::QAR2(A),XR(b)
- R(b);OGATE::QAR1(A),XR(b)
- P(c);N_GUARD::QAR(A),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- B(E);
- Vars
- R(b);N_SPINR(b),OGATE,XQ(A)::R(B),XR(b)
- R(b);OGATEB::QAR(A),XR(b)
- R(b);OGATE::QAR2(A),XR(b)
- P(c);N_GUARD::QAR(A),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- B(E);
- Vars
- R(b);N_SPINR(b),OGATE,XQ(A)::R(B),XR(b)
- R(b);OGATEB::QAR(A),XR(b)
- R(b);OGATE::QAR2(A),XR(b)
- R(b);OGATE::QAR1(A),XR(b)
- P(c);N_GUARD::QAR(A),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- R(B);XP(a)
- Vars
- R(b);OGATE::QAR2(A),XR(b)
- R(b);OGATE::QAR1(A),XR(b)
- P(c);N_GUARD::QAR(A),XR(b)
- Refutation
- R(b);N_SPINR(b),XQ(A)
- Try
- Q(A);N_PINR(b)
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD::QAR1(A),XR(b)
- Refutation
- R(b);CHECK
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(b);OGATE::QAR1(A),XR(b)
- P(c);N_GUARD::QAR(A),XR(b)
- Refutation
- R(b);N_SPINR(b),XQ(A)
- Try
- Actual
- B(E);
- Vars
- K(d);P-FLIGHT::R(F)
- R(b);N_SPINR(b),OGATE,XQ(A)::R(B),XR(b)
- R(b);OGATEB::QAR(A),XR(b)
- R(b);OGATE::QAR2(A),XR(b)
- R(b);SBLOCK::QAR(A)
- P(c);N_GUARD::QAR(A),XR(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).