MESON Chess Problem Database
Problem Display
PID: 162682 (QR4K1/5R2/8/2bp3p/2q3kp/6pN/6Pn/5N2 w - - 0 1)
Thomas, Georg
Aarsskrift for DSK, 1940
#2
7 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Rf4#
- 1...Qe2
- 2.Rf4#
- 1...Qb3
- 2.Rf4#
- 1...Qd3
- 2.Rf4#
- 1...Qb5
- 2.Rf4#
- 1...Qa6
- 2.Rf4#
- 1...Qc2
- 2.Rf4#
- 1...Qc3
- 2.Rf4#
- 1...Qf4
- 2.Rxf4#
- 1...Ba3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Bb4
- 2.Se3#
- 1...Bd4
- 2.Rf4#
- 1...Bd6
- 2.Se3#
- 1...Be7
- 2.Se3#
- 1...Bf8
- 2.Se3#
- 1...d4
- 2.Qe4#
- 1...Qa2
- Tries
- 1.Rbf8?
- threat
- 2.Rg7#
- 2.Qc8#
- 1...Qxf1
- 2.Rg7#
- 1...Bxf8
- 2.Se3#
- 1...Qa4
- 2.Rg7#
- 1...Qe2
- 2.Rf4#
- 2.Rg7#
- 1...Qd3
- 2.Rf4#
- 1...Qb5
- 2.Rf4#
- 2.Rg7#
- 1...Qa6
- 2.Rf4#
- 1...Qc1
- 2.Qc8#
- 1...Qc2
- 2.Rf4#
- 1...Qc3
- 2.Rf4#
- 2.Qc8#
- 1...Qd4
- 2.Qc8#
- 1...Qf4
- 2.Rxf4#
- 1...Bg1
- 2.Rg7#
- 1...Bf2
- 2.Rg7#
- 1...Ba3
- 2.Se3#
- 2.Rg7#
- 1...Be3
- 2.Sxe3#
- 1...Bb4
- 2.Se3#
- 2.Rg7#
- 1...Bd4
- 2.Rf4#
- 1...Bb6
- 2.Rg7#
- 1...Bd6
- 2.Se3#
- 2.Rg7#
- 1...Ba7
- 2.Rg7#
- 1...Be7
- 2.Se3#
- 1...Sf3
- 2.Qc8#
- 1...d4
- 2.Qe4#
- 1...Qe4!
- threat
- 1.Qxd5?
- threat
- 2.Rg7#
- 2.Qf5#
- 2.Qg5#
- 1...Qxf1
- 2.Rg7#
- 2.Qg5#
- 1...Qd3
- 2.Rf4#
- 2.Qg5#
- 1...Qa6
- 2.Rf4#
- 2.Qe4#
- 2.Qf5#
- 2.Qg5#
- 1...Qc1
- 2.Qe6#
- 2.Qf5#
- 2.Qd7#
- 1...Qc2
- 2.Rf4#
- 2.Qg5#
- 1...Qc3
- 2.Rf4#
- 2.Qe4#
- 2.Qe6#
- 2.Qf5#
- 2.Qg5#
- 2.Qd7#
- 1...Qd4
- 2.Qe6#
- 2.Qf5#
- 2.Qg5#
- 1...Qe4
- 2.Qxe4#
- 2.Qg5#
- 1...Qf4
- 2.Rxf4#
- 1...Be3
- 2.Sxe3#
- 2.Qf5#
- 1...Bd4
- 2.Rf4#
- 2.Qe4#
- 2.Qf5#
- 2.Qg5#
- 1...Be7
- 2.Se3#
- 2.Qxc4#
- 2.Qf5#
- 1...Bf8
- 2.Se3#
- 2.Qxc4#
- 2.Qf5#
- 2.Qg5#
- 1...Sf3
- 2.Qxf3#
- 2.Qf5#
- 1...Qxd5!
- threat
- 1.Qc6?
- threat
- 2.Qd7#
- 2.Qe6#
- 2.Qg6#
- 2.Qc8#
- 1...Qxf1
- 2.Qg6#
- 1...Qa4
- 2.Qe6#
- 2.Qg6#
- 1...Qe2
- 2.Rf4#
- 2.Qg6#
- 1...Qd3
- 2.Rf4#
- 1...Qb5
- 2.Rf4#
- 2.Qe6#
- 2.Qg6#
- 1...Qa6
- 2.Rf4#
- 1...Qc1
- 2.Qd7#
- 2.Qe6#
- 2.Qc8#
- 1...Qc2
- 2.Rf4#
- 1...Qf4
- 2.Rxf4#
- 1...Bg1
- 2.Qd7#
- 2.Qe6#
- 2.Qg6#
- 1...Bf2
- 2.Qd7#
- 2.Qe6#
- 2.Qg6#
- 1...Ba3
- 2.Se3#
- 2.Qd7#
- 2.Qe6#
- 2.Qg6#
- 1...Be3
- 2.Sxe3#
- 2.Qd7#
- 2.Qe6#
- 1...Bb4
- 2.Se3#
- 2.Qd7#
- 2.Qe6#
- 2.Qg6#
- 1...Bd4
- 2.Rf4#
- 2.Qd7#
- 2.Qe6#
- 2.Qg6#
- 1...Bb6
- 2.Qd7#
- 2.Qe6#
- 2.Qg6#
- 1...Bd6
- 2.Se3#
- 2.Qd7#
- 1...Ba7
- 2.Qd7#
- 2.Qe6#
- 2.Qg6#
- 1...Be7
- 2.Se3#
- 2.Qd7#
- 2.Qe6#
- 1...Bf8
- 2.Se3#
- 2.Qd7#
- 2.Qe6#
- 2.Qg6#
- 1...Sf3
- 2.Qd7#
- 2.Qe6#
- 2.Qc8#
- 1...d4
- 2.Qe4#
- 2.Qg6#
- 1...Qe4!
- threat
- 1.Rbf8?
- Keys
- 1.Rb4!
- threat
- 2.Qc8#
- 1...Bxb4
- 2.Se3#
- 1...Bd4
- 2.Rf4#
- 1...d4
- 2.Qe4#
- threat
- 1.Rb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 14
- Sets
- Q(c);N_GUARD::R1(D)
- Q(c);N_GUARD::R1(D),XQ(c)
- B(f);N_GUARD::S(A)
- B(f);N_GUARD::S(A),XB(f)
- B(f);S_CUTQ(c)::R1(D)
- P(g);OGATE,P_PINR(D)::QAR2(E)
- Tries
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- Q(c);XS(A)::R(D)
- B(f);N_GUARD,XR(F)::S(A)
- Q(c);::R(D)
- Q(c);N_GUARD::R1(D)
- Q(c);::QAB(E)
- Q(c);N_GUARD::R1(D),XQ(c)
- B(f);::R(D)
- B(f);N_GUARD::S(A),XB(f)
- B(f);S_CUTQ(c)::R1(D)
- B(f);N_GUARD::S(A)
- S(a);::QAB(E)
- P(g);OGATE,P_PINR(D)::QAR2(E)
- Refutation
- Q(c);
- Try
- Q(E);XP(g)
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD::R1(D),XQ(c)
- Refutation
- Q(c);P_PINR(D),XQ(E)
- Try
- Q(E);
- Threat
- DUALS(4)
- Vars
- Q(c);XS(A)::QAR2(E)
- Q(c);N_GUARD::R1(D)
- Q(c);N_GUARD::R1(D),XQ(c)
- Refutation
- Q(c);
- Try
- Actual
- R(F);P_PINQ(c)
- Threat
- QAB(E)
- Vars
- B(f);N_GUARD,N_SPINQ(c),XR(F)::S(A)
- B(f);N_SPINQ(c),S_CUTQ(c)::R1(D)
- P(g);N_SPINQ(c),OGATE,P_PINR(D)::QAR2(E)
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).