MESON Chess Problem Database
Problem Display
PID: 231032 (rk4K1/1PR2N2/4P3/1N2n3/1Rp3p1/2P2rB1/6B1/8 w - - 0 1)
von Gottschall, Hermann
Deutsche Schachzeitung, 1930
#2
10 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf2
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rxc3
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rd3
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Re3
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rxg3
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf4
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf5
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf6
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rxf7
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf1
- Tries
- 1.Sxe5?
- threat
- 2.Sc6#
- 2.Sd7#
- 1...Rd3
- 2.Sc6#
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf7
- 2.Sc6#
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Ra6
- 2.Sd7#
- 1...Rf8+!
- threat
- 1.Bxe5?
- threat
- 2.Rd7#
- 2.Re7#
- 1...Rd3
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Re3
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf5
- 2.Rc8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Ra6!
- threat
- 1.Rd7?
- threat
- 2.Bxe5#
- 1...Rxg3
- 2.Rd8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rd3
- 2.bxa8Q#
- 2.bxa8R#
- 1...Re3
- 2.Rd8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf4
- 2.Rd8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf5
- 2.Rd8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Ra6!
- threat
- 1.Re7?
- threat
- 2.Bxe5#
- 1...Rxg3
- 2.Re8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rd3
- 2.bxa8Q#
- 2.bxa8R#
- 1...Re3
- 2.Re8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf4
- 2.Re8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Rf5
- 2.Re8#
- 2.bxa8Q#
- 2.bxa8R#
- 1...Ra6!
- threat
- 1.Sxe5?
- Keys
- 1.Sa7!
- 1...Kxa7+
- 2.b8S#
- 1...Kxc7+
- 2.bxa8S#
- 1...Rxc3
- 2.bxa8S#
- 1...Rxg3
- 2.bxa8S#
- 1...Rxf7
- 2.bxa8S#
- 1...Rxa7
- 2.Rc8#
- 1...Sxf7
- 2.Sc6#
- 1...Rf1
- 2.bxa8S#
- 1...Rf2
- 2.bxa8S#
- 1...Rd3
- 2.bxa8S#
- 1...Re3
- 2.bxa8S#
- 1...Rf4
- 2.bxa8S#
- 1...Rf5
- 2.bxa8S#
- 1...Rf6
- 2.bxa8S#
- 1...Sd3
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg6
- 2.Sc6#
- 1...Sd7
- 2.Sc6#
- 1...Kxa7+
- 1.Sa7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 18
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(I);XS(d)
- Threat
- DUALS(2)
- Vars
- R(e);::S(I)
- Refutation
- R(a);CHECK
- Try
- B(C);XS(d)
- Threat
- DUALS(2)
- Refutation
- R(e);
- Try
- R(H);P_PINS(d)
- Threat
- B(C),XS(d)
- Vars
- R(a);::PXR(e)=Q
- Refutation
- R(e);
- Try
- R(H);P_PINS(d)
- Threat
- B(C),XS(d)
- Vars
- R(a);::PXR(e)=Q
- Refutation
- R(e);
- Try
- Actual
- S(E);
- Vars
- K(f);CHECK,OGATE,S_FLIGHT,XS(E)::P=S
- K(f);CHECK,P_SPINS(d),S_FLIGHT,XR(H)::PXR(e)=S
- R(a);XP(B)::PXR(e)=S
- R(a);XB(C)::PXR(e)=S
- R(a);XS(I)::PXR(e)=S
- R(e);SBLOCK,XS(E)::R1(H)
- S(d);N_GUARD,XS(I)::S(E)
- R(a);::PXR(e)=S
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
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).