MESON Chess Problem Database
Problem Display
PID: 59971 (8/8/Q4R2/1r2R1p1/b3prp1/1p3kP1/1P3P2/5K2 w - - 0 1)
McDowell, Michael
The Wangling Wizards, 2005
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Rf5
- 2.Rfxf5#
- 1...Rxf6
- 2.Qxf6#
- 1...Rb4
- 2.Qe2#
- 1...Ra5
- 2.Qe2#
- 1...Rc5
- 2.Qe2#
- 1...Rd5
- 2.Qe2#
- 1...Rxe5
- 2.Qe2#
- 1...Rb6
- 2.Qe2#
- 1...Rb7
- 2.Qe2#
- 1...Rb8
- 2.Qe2#
- 1...e3
- 2.Rxe3#
- 1...Rf5
- Tries
- 1.Rxe4?
- threat
- 2.Re3#
- 1...Re5
- 2.Qe2#
- 2.Qd3#
- 1...Kxe4!
- threat
- 1.Rxb5?
- 1...Rxf6
- 2.Qxf6#
- 1...e3
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...Rf5
- 2.Rbxf5#
- 2.Rfxf5#
- 1...Bxb5+!
- 1...Rxf6
- 1.Rd5?
- 1...Rxf6
- 2.Qxf6#
- 1...Rxd5
- 2.Qe2#
- 1...Rf5
- 2.Rfxf5#
- 1...Rb4
- 2.Qe2#
- 1...Ra5
- 2.Qe2#
- 1...Rc5
- 2.Qe2#
- 1...Rb6
- 2.Qe2#
- 1...Rb7
- 2.Qe2#
- 1...Rb8
- 2.Qe2#
- 1...e3!
- 1...Rxf6
- 1.Rff5?
- 1...Rxe5
- 2.Qe2#
- 1...Rb4
- 2.Qe2#
- 1...Ra5
- 2.Qe2#
- 1...Rc5
- 2.Qe2#
- 1...Rd5
- 2.Qe2#
- 1...Rb6
- 2.Qe2#
- 1...Rb7
- 2.Qe2#
- 1...Rb8
- 2.Qe2#
- 1...e3
- 2.Rxe3#
- 1...Rxf5!
- 1...Rxe5
- 1.Rf7?
- 1...Rxe5
- 2.Qe2#
- 1...Rf5
- 2.Rfxf5#
- 1...Rf6
- 2.Rxf6#
- 2.Qxf6#
- 1...Rb4
- 2.Qe2#
- 1...Ra5
- 2.Qe2#
- 1...Rc5
- 2.Qe2#
- 1...Rd5
- 2.Qe2#
- 1...Rb6
- 2.Qe2#
- 1...Rb7
- 2.Qe2#
- 1...Rb8
- 2.Qe2#
- 1...e3
- 2.Rxe3#
- 1...Rxf7!
- 1...Rxe5
- 1.Rf8?
- 1...Rxe5
- 2.Qe2#
- 1...Rf5
- 2.Rfxf5#
- 1...Rf6
- 2.Rxf6#
- 2.Qxf6#
- 1...Rf7
- 2.Rxf7#
- 1...Rb4
- 2.Qe2#
- 1...Ra5
- 2.Qe2#
- 1...Rc5
- 2.Qe2#
- 1...Rd5
- 2.Qe2#
- 1...Rb6
- 2.Qe2#
- 1...Rb7
- 2.Qe2#
- 1...Rb8
- 2.Qe2#
- 1...e3
- 2.Rxe3#
- 1...Rxf8!
- 1...Rxe5
- 1.Qd6?
- threat
- 2.Qd1#
- 1...e3
- 2.Rxe3#
- 1...Rd5!
- threat
- 1.Rxe4?
- Keys
- 1.Rc5!
- 1...Rxf6
- 2.Qxf6#
- 1...Rxc5
- 2.Qe2#
- 1...e3
- 2.Qc6#
- 1...Rf5
- 2.Rfxf5#
- 1...Rb4
- 2.Qe2#
- 1...Ra5
- 2.Qe2#
- 1...Rb6
- 2.Qe2#
- 1...Rb7
- 2.Qe2#
- 1...Rb8
- 2.Qe2#
- 1...Rxf6
- 1.Rc5!
This is a version of 21299
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(e);OGATEB::R(G),XR(e)
- R(e);N_SPINR(e),OGATE,XR(G)::QAR(F),XR(e)
- R(g);OGATE::QAB1(F)
- R(g);OGATE,XR(E)::QAB1(F)
- P(d);OGATE::R1(E),XP(d)
- Tries
- Try
- R(E);XP(d)
- Threat
- R1(E)
- Refutation
- K(b);N_SPINR(e),P_PINP(C),S_FLIGHT,XR(E)
- Try
- R(E);XR(g)
- Vars
- R(e);N_SPINR(e),OGATE,XR(G)::QAR(F),XR(e)
- Refutation
- B(c);CHECK,XR(E)
- Try
- R(E);
- Vars
- R(e);N_SPINR(e),OGATE,XR(G)::QAR(F),XR(e)
- R(g);OGATE,XR(E)::QAB1(F)
- R(e);OGATEB::R(G),XR(e)
- R(g);OGATE::QAB1(F)
- Refutation
- P(d);
- Try
- R(G);
- Vars
- R(g);OGATE,XR(E)::QAB1(F)
- R(g);OGATE::QAB1(F)
- P(d);OGATE::R1(E),XP(d)
- Refutation
- R(e);N_SPINR(e),XR(G)
- Try
- R(G);
- Vars
- R(g);OGATE,XR(E)::QAB1(F)
- R(e);OGATEB::R(G),XR(e)
- R(g);OGATE::QAB1(F)
- P(d);OGATE::R1(E),XP(d)
- Refutation
- R(e);N_SPINR(e),XR(G)
- Try
- R(G);
- Vars
- R(g);OGATE,XR(E)::QAB1(F)
- R(e);OGATEB::R(G),XR(e)
- R(g);OGATE::QAB1(F)
- P(d);OGATE::R1(E),XP(d)
- Refutation
- R(e);N_SPINR(e),XR(G)
- Try
- Q(F);
- Threat
- QAB(F)
- Vars
- P(d);OGATE::R1(E),XP(d)
- Refutation
- R(g);
- Try
- Actual
- R(E);
- Vars
- R(e);N_SPINR(e),OGATE,XR(G)::QAR(F),XR(e)
- R(g);OGATE,XR(E)::QAB1(F)
- P(d);OGATEB::QAB(F)
- R(e);OGATEB::R(G),XR(e)
- R(g);OGATE::QAB1(F)
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).