MESON Chess Problem Database
Problem Display
PID: 121764 (4k2r/2pR2R1/2P4P/8/8/8/8/6K1 w - - 0 1)
Ernst, Georg
Deutsches Wochenschach, 1911
#2
5 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kf8
- 2.Rd8#
- 1...Rxh6
- 2.Rg8#
- 1...Rh7
- 2.Rg8#
- 1...Rf8
- 2.Rge7#
- 1...Rg8
- 2.Rxg8#
- 1...Kf8
- Tries
- 1.Kf1?
- 1...Kf8
- 2.Rd8#
- 1...Rxh6
- 2.Rg8#
- 1...Rh7
- 2.Rg8#
- 1...Rg8
- 2.Rxg8#
- 1...Rf8+!
- 1...Kf8
- 1.Kh1?
- 1...Kf8
- 2.Rd8#
- 1...Rh7
- 2.Rg8#
- 1...Rf8
- 2.Rge7#
- 1...Rg8
- 2.Rxg8#
- 1...Rxh6+!
- 1...Kf8
- 1.Kf2?
- 1...Kf8
- 2.Rd8#
- 1...Rxh6
- 2.Rg8#
- 1...Rh7
- 2.Rg8#
- 1...Rg8
- 2.Rxg8#
- 1...Rf8+!
- 1...Kf8
- 1.Kh2?
- 1...Kf8
- 2.Rd8#
- 1...Rh7
- 2.Rg8#
- 1...Rf8
- 2.Rge7#
- 1...Rg8
- 2.Rxg8#
- 1...Rxh6+!
- 1...Kf8
- 1.Rxc7?
- threat
- 2.Rc8#
- 1...Kf8
- 2.Rc8#
- 1...Kd8!
- threat
- 1.Rg2?
- 1...Rxh6
- 2.Rg8#
- 1...Rh7
- 2.Rg8#
- 1...Rf8
- 2.Re2#
- 1...Rg8
- 2.Rxg8#
- 1...Kf8!
- 1...Rxh6
- 1.Rg3?
- 1...Rxh6
- 2.Rg8#
- 1...Rh7
- 2.Rg8#
- 1...Rf8
- 2.Re3#
- 1...Rg8
- 2.Rxg8#
- 1...Kf8!
- 1...Rxh6
- 1.Rg4?
- 1...Rxh6
- 2.Rg8#
- 1...Rh7
- 2.Rg8#
- 1...Rf8
- 2.Re4#
- 1...Rg8
- 2.Rxg8#
- 1...Kf8!
- 1...Rxh6
- 1.Rg5?
- 1...Rxh6
- 2.Rg8#
- 1...Rh7
- 2.Rg8#
- 1...Rf8
- 2.Re5#
- 1...Rg8
- 2.Rxg8#
- 1...Kf8!
- 1...Rxh6
- 1.Rg6?
- 1...Rxh6
- 2.Rg8#
- 1...Rh7
- 2.Rg8#
- 1...Rf8
- 2.Re6#
- 1...Rg8
- 2.Rxg8#
- 1...Kf8!
- 1...Rxh6
- 1.h7?
- 1...Rxh7
- 2.Rg8#
- 1...Rf8
- 2.Rge7#
- 1...Rg8
- 2.Rxg8#
- 2.hxg8Q#
- 2.hxg8R#
- 1...Kf8!
- 1...Rxh7
- 1.Kf1?
- Keys
- 1.Kg2!
- 1...Kf8
- 2.Rd8#
- 1...Rxh6
- 2.Rg8#
- 1...Rh7
- 2.Rg8#
- 1...Rf8
- 2.Rge7#
- 1...Rg8
- 2.Rxg8#
- 1...Kf8
- 1.Kg2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(b);P-FLIGHT::R(D)
- R(c);N_GUARD,XP(C)::R(E)
- R(c);N_GUARD::R(E)
- R(c);SBLOCK::R1(E)
- R(c);N_GUARD,P_PINR(E)::R(E),XR(c)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(b);P-FLIGHT::R(D)
- R(c);N_GUARD,XP(C)::R(E)
- R(c);N_GUARD::R(E)
- R(c);N_GUARD::R(E),XR(c)
- Refutation
- R(c);CHECK
- Try
- K(A);P-FLIGHT,P_SPINP(C)
- Vars
- K(b);P-FLIGHT::R(D)
- R(c);N_GUARD::R(E)
- R(c);N_PINP(C),SBLOCK::R1(E)
- R(c);N_GUARD,N_PINP(C)::R(E),XR(c)
- Refutation
- R(c);CHECK,XP(C)
- Try
- K(A);S_FLIGHT
- Vars
- K(b);P-FLIGHT::R(D)
- R(c);N_GUARD,XP(C)::R(E)
- R(c);N_GUARD::R(E)
- R(c);N_GUARD::R(E),XR(c)
- Refutation
- R(c);CHECK
- Try
- K(A);P_SPINP(C),S_FLIGHT
- Vars
- K(b);P-FLIGHT::R(D)
- R(c);N_GUARD::R(E)
- R(c);N_PINP(C),SBLOCK::R1(E)
- R(c);N_GUARD,N_PINP(C)::R(E),XR(c)
- Refutation
- R(c);CHECK,XP(C)
- Try
- R(D);XP(a)
- Threat
- R(D)
- Vars
- K(b);P-FLIGHT::R(D)
- Refutation
- K(b);P-FLIGHT
- Try
- R(E);
- Vars
- R(c);N_GUARD,XP(C)::R(E)
- R(c);N_GUARD::R(E)
- R(c);SBLOCK::R(E)
- R(c);N_GUARD,P_PINR(E)::R(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- R(E);
- Vars
- R(c);N_GUARD,XP(C)::R(E)
- R(c);N_GUARD::R(E)
- R(c);SBLOCK::R(E)
- R(c);N_GUARD,P_PINR(E)::R(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- R(E);
- Vars
- R(c);N_GUARD,XP(C)::R(E)
- R(c);N_GUARD::R(E)
- R(c);SBLOCK::R(E)
- R(c);N_GUARD,P_PINR(E)::R(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- R(E);
- Vars
- R(c);N_GUARD,XP(C)::R(E)
- R(c);N_GUARD::R(E)
- R(c);SBLOCK::R(E)
- R(c);N_GUARD,P_PINR(E)::R(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- R(E);
- Vars
- R(c);N_GUARD,XP(C)::R(E)
- R(c);N_GUARD::R(E)
- R(c);SBLOCK::R(E)
- R(c);N_GUARD,P_PINR(E)::R(E),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- P(C);
- Vars
- R(c);N_GUARD,XP(C)::R(E)
- R(c);SBLOCK::R1(E)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- K(A);P-FLIGHT
- Vars
- K(b);P-FLIGHT::R(D)
- R(c);N_GUARD,XP(C)::R(E)
- R(c);N_GUARD::R(E)
- R(c);SBLOCK::R1(E)
- R(c);N_GUARD,P_PINR(E)::R(E),XR(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).