MESON Chess Problem Database
Problem Display
PID: 231603 (8/BbKN4/6P1/3kn3/4R3/8/8/7Q w - - 0 1)
Hamann, BA
Deutsche Arbeiter Schachzeitung, 1927
#2
6 + 3
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ke6
- 2.Rxe5#
- 1...Sd3
- 2.Sf6#
- 1...Sf3
- 2.Sf6#
- 1...Sc4
- 2.Sf6#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.Re8#
- 1...Sc6
- 2.Sf6#
- 1...Sxg6
- 2.Sf6#
- 1...Sf7
- 2.Sf6#
- 1...Ke6
- Tries
- 1.Qa1?
- threat
- 2.Qxe5#
- 1...Ke6
- 2.Rxe5#
- 2.Qxe5#
- 1...Sxg6
- 2.Sf6#
- 2.Qd4#
- 1...Sxd7
- 2.Qd4#
- 1...Sd3
- 2.Sf6#
- 2.Qd4#
- 1...Sf3
- 2.Sf6#
- 1...Sc4
- 2.Sf6#
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 1...Sc6
- 2.Sf6#
- 1...Sf7
- 2.Sf6#
- 2.Qd4#
- 1...Kxe4!
- threat
- 1.Qc1?
- threat
- 2.Rxe5#
- 1...Ke6
- 2.Rxe5#
- 1...Sxg6
- 2.Sf6#
- 2.Qc4#
- 1...Sxd7
- 2.Qc4#
- 1...Sd3
- 2.Sf6#
- 2.Qc4#
- 1...Sf3
- 2.Sf6#
- 2.Qc4#
- 1...Sc4
- 2.Sf6#
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sc6
- 2.Sf6#
- 2.Qc4#
- 1...Sf7
- 2.Sf6#
- 2.Qc4#
- 1...Kxe4!
- threat
- 1.Qd1+?
- 1...Ke6
- 2.Rxe5#
- 1...Sd3
- 2.Sf6#
- 2.Qxd3#
- 1...Kxe4!
- 1...Ke6
- 1.Qh3?
- threat
- 2.Sf6#
- 2.Rd4#
- 1...Sxd7
- 2.Qe6#
- 2.Qd3#
- 1...Sf3
- 2.Sf6#
- 2.Qe6#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Sf6#
- 2.Qe6#
- 1...Kxe4!
- threat
- 1.Qh5?
- threat
- 2.Qxe5#
- 1...Ke6
- 2.Rxe5#
- 2.Qxe5#
- 1...Kxe4!
- threat
- 1.Qh8?
- threat
- 2.Qxe5#
- 1...Ke6
- 2.Rxe5#
- 2.Qxe5#
- 1...Sxg6
- 2.Sf6#
- 2.Qd4#
- 1...Sxd7
- 2.Qd4#
- 1...Sd3
- 2.Sf6#
- 2.Qd4#
- 1...Sf3
- 2.Sf6#
- 1...Sc4
- 2.Sf6#
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 1...Sc6
- 2.Sf6#
- 1...Sf7
- 2.Sf6#
- 2.Qd4#
- 1...Kxe4!
- threat
- 1.Qa1?
- Keys
- 1.Qf1!
- threat
- 2.Rxe5#
- 1...Kxe4
- 2.Sf6#
- 1...Ke6
- 2.Rxe5#
- 2.Qf7#
- 1...Sxg6
- 2.Sf6#
- 2.Qd3#
- 2.Qc4#
- 1...Sxd7
- 2.Qd3#
- 2.Qc4#
- 1...Sd3
- 2.Sf6#
- 2.Qxd3#
- 1...Sf3
- 2.Sf6#
- 2.Qc4#
- 1...Sc4
- 2.Sf6#
- 2.Qd3#
- 2.Qxc4#
- 1...Sg4
- 2.Qd3#
- 2.Qc4#
- 1...Sc6
- 2.Sf6#
- 2.Qc4#
- 1...Sf7
- 2.Sf6#
- 2.Qd3#
- 2.Qc4#
- threat
- 1.Qf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- K(a);P_SPINS(b),S_FLIGHT::R1(B),XS(b)
- S(b);::S(F)
- S(b);XP(C)::S(F)
- Tries
- Try
- Q(A);
- Threat
- QAR1(A),XS(b)
- Vars
- S(b);XS(F)::QAR1(A)
- S(b);::S(F)
- S(b);::QAR1(A)
- Refutation
- K(a);S_FLIGHT,XR(B)
- Try
- Q(A);
- Threat
- R1(B),XS(b)
- Vars
- K(a);P_SPINS(b),S_FLIGHT::R1(B),XS(b)
- S(b);N_GUARD,XS(F)::QAB1(A)
- S(b);N_GUARD::QAB1(A)
- Refutation
- K(a);S_FLIGHT,XR(B)
- Try
- Q(A);CHECK
- Vars
- K(a);P_SPINS(b),S_FLIGHT::R1(B),XS(b)
- Refutation
- K(a);S_FLIGHT,XR(B)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::QAR2(A)
- Refutation
- K(a);S_FLIGHT,XR(B)
- Try
- Q(A);P_PINS(b)
- Threat
- QAR1(A),XS(b)
- Refutation
- K(a);N_SPINS(b),S_FLIGHT,XR(B)
- Try
- Q(A);
- Threat
- QAR1(A),XS(b)
- Vars
- S(b);OGATE,XS(F)::QAR1(A)
- S(b);::S(F)
- S(b);OGATE::QAR1(A)
- Refutation
- K(a);S_FLIGHT,XR(B)
- Try
- Actual
- Q(A);
- Threat
- R1(B),XS(b)
- Vars
- K(a);S_FLIGHT,XR(B)::S(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).