MESON Chess Problem Database
Problem Display
PID: 81957 (7K/8/2p1BN1B/6R1/5k2/3pbp2/5q2/4Q3 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Berliner Morgenpost, 1963
#2
6 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Rf5#
- 1...Qg3
- 2.Rf5#
- 2.Qxg3#
- 1...Qh4
- 2.Rf5#
- 2.Qxh4#
- 1...Qf1
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qg3#
- 2.Qh4#
- 1...Qa2
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qg3#
- 2.Qh4#
- 1...Qb2
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qg3#
- 2.Qh4#
- 1...Qc2
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qg3#
- 2.Qh4#
- 1...Qd2
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qg3#
- 2.Qh4#
- 1...Qe2
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qg3#
- 2.Qh4#
- 1...Qg2
- 2.Rf5#
- 1...Qh2
- 2.Rf5#
- 2.Rh5#
- 1...Bc1
- 2.Sh5#
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe4#
- 2.Qe5#
- 1...Bd2
- 2.Sh5#
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe4#
- 2.Qe5#
- 1...Bd4
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe4#
- 1...Bc5
- 2.Sh5#
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe4#
- 2.Qe5#
- 1...Bb6
- 2.Sh5#
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe4#
- 2.Qe5#
- 1...Ba7
- 2.Sh5#
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe4#
- 2.Qe5#
- 1...Qg1
- Tries
- 1.Bd5?
- threat
- 2.Sh5#
- 1...Qh4
- 2.Qxh4#
- 1...Qb2
- 2.Rh5#
- 2.Qg3#
- 2.Qh4#
- 1...Qh2
- 2.Rh5#
- 1...Bd4
- 2.Qe4#
- 1...cxd5!
- threat
- 1.Qxf2?
- threat
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qg3#
- 2.Qh4#
- 2.Qh2#
- 1...Bc1
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qd4#
- 1...Bd2
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qd4#
- 2.Qxd2#
- 1...Bd4
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qxd4#
- 1...Bc5
- 2.Rxc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 1...Bb6
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 1...Ba7
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 1...c5
- 2.Rxc5#
- 2.Rd5#
- 2.Rf5#
- 2.Rh5#
- 2.Qg3#
- 2.Qh4#
- 2.Qh2#
- 1...Bxf2!
- threat
- 1.Qc3?
- threat
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe5#
- 1...Qg1
- 2.Rxg1#
- 2.Rg2#
- 2.Rg4#
- 2.Qe5#
- 1...Qg3
- 2.Rg4#
- 2.Rf5#
- 2.Qe5#
- 1...Qh4
- 2.Rg4#
- 2.Qe5#
- 1...Qb2
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Qg2
- 2.Rxg2#
- 2.Rg4#
- 2.Qe5#
- 1...Qh2
- 2.Rg4#
- 2.Qe5#
- 1...Bd4!
- threat
- 1.Qa5?
- threat
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qc7#
- 2.Qe5#
- 2.Qf5#
- 1...Bc1
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe5#
- 1...Bd2
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe5#
- 1...Bd4
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 1...Bb6
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe5#
- 1...Ba7
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qe5#
- 1...Qg1
- 2.Rxg1#
- 2.Rg2#
- 2.Rg4#
- 2.Qc7#
- 2.Qe5#
- 2.Qf5#
- 1...Qg3
- 2.Rg4#
- 2.Rf5#
- 2.Qc7#
- 2.Qe5#
- 2.Qf5#
- 1...Qh4
- 2.Rg4#
- 2.Qc7#
- 2.Qe5#
- 2.Qf5#
- 1...Qb2
- 2.Rg1#
- 2.Rg2#
- 2.Rg4#
- 2.Rg6#
- 2.Rg7#
- 2.Rg8#
- 2.Qf5#
- 1...Qg2
- 2.Rxg2#
- 2.Rg4#
- 2.Qc7#
- 2.Qe5#
- 2.Qf5#
- 1...Qh2
- 2.Rg4#
- 2.Qc7#
- 2.Qe5#
- 2.Qf5#
- 1...c5
- 2.Qc7#
- 1...Bc5!
- threat
- 1.Bd5?
- Keys
- 1.Sd7!
- threat
- 2.Rg4#
- 1...Qb2+
- 2.Re5#
- 1...Bd4+
- 2.Rg7#
- 1...Ke4
- 2.Rg4#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(a);::B(E)+R(B),DCHECK
- Tries
- Try
- B(C);
- Threat
- S(D)
- Vars
- Q(a);OGATE,P_PINB(E)::QAR2(A),XQ(a)
- Q(a);P_PINB(E)::B(E)+R(B)
- B(c);OGATE,P_PINS(D)::QAR1(A)
- Refutation
- P(f);XB(C)
- Try
- Q(A);P_PINP(d),XQ(a)
- Threat
- DUALS(9)
- Refutation
- B(c);N_SPINP(d),XQ(A)
- Try
- Q(A);
- Threat
- DUALS(7)
- Refutation
- B(c);P_PINS(D)
- Try
- Q(A);
- Threat
- DUALS(9)
- Vars
- P(f);::QAB(A)
- Refutation
- B(c);
- Try
- Actual
- S(D);
- Threat
- B(E)+R(B),DCHECK
- Vars
- Q(a);CHECK::B(E)+R(B)
- B(c);CHECK::B(E)+R(B)
- K(e);P-FLIGHT,P_SPINB(c)::R(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).