MESON Chess Problem Database
Problem Display
PID: 136786 (R3r3/1R1p4/bnQp4/2nB4/5P1B/4p2K/4PN1N/6k1 w - - 0 1)
Rozenfeld, Isai Hillel
2nd Prize=, Estonian National Ty., 1948
#2
10 + 8
| 23 | Die Schwalbe | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Rg8#
- 1...Rg8
- 2.Rxg8#
- 1...Bc4
- 2.Ra1#
- 1...Bb5
- 2.Ra1#
- 1...Bxb7
- 2.Ra1#
- 1...Sca4
- 2.Qc1#
- 1...Se4
- 2.Qc1#
- 1...Se6
- 2.Qc1#
- 1...Sxb7
- 2.Qc1#
- 1...Sba4
- 2.Rb1#
- 1...Sc4
- 2.Rb1#
- 1...Sxd5
- 2.Rb1#
- 1...Sxa8
- 2.Rb1#
- 1...Sc8
- 2.Rb1#
- 1...dxc6
- 2.Rg7#
- 1...Re4
- Tries
- 1.Ba2?
- threat
- 2.Qh1#
- 2.Qg2#
- 1...exf2
- 2.Qg2#
- 1...dxc6
- 2.Rg7#
- 1...Re4
- 2.Rg8#
- 1...Rg8
- 2.Rxg8#
- 2.Qh1#
- 1...Se4
- 2.Qc1#
- 1...Sd5
- 2.Rb1#
- 1...d5
- 2.Qg6#
- 1...Bxb7!
- threat
- 1.Bb3?
- threat
- 2.Qh1#
- 2.Qg2#
- 1...Bxb7
- 2.Ra1#
- 1...exf2
- 2.Qg2#
- 1...dxc6
- 2.Rg7#
- 1...Re4
- 2.Rg8#
- 1...Rg8
- 2.Rxg8#
- 2.Qh1#
- 1...Se4
- 2.Qc1#
- 1...d5
- 2.Qg6#
- 1...Sd5!
- threat
- 1.Bc4?
- threat
- 2.Qh1#
- 2.Qg2#
- 1...Bxb7
- 2.Ra1#
- 1...exf2
- 2.Qg2#
- 1...dxc6
- 2.Rg7#
- 1...Re4
- 2.Rg8#
- 1...Rg8
- 2.Rxg8#
- 2.Qh1#
- 1...Sd5
- 2.Rb1#
- 1...d5
- 2.Qg6#
- 1...Se4!
- threat
- 1.Be6?
- threat
- 2.Qh1#
- 2.Qg2#
- 1...Bxb7
- 2.Ra1#
- 1...exf2
- 2.Qg2#
- 1...dxc6
- 2.Rg7#
- 1...Rg8
- 2.Rxg8#
- 2.Qh1#
- 1...Se4
- 2.Qc1#
- 1...Sd5
- 2.Rb1#
- 1...d5!
- threat
- 1.Bf7?
- threat
- 2.Qh1#
- 2.Qg2#
- 1...Bxb7
- 2.Ra1#
- 1...exf2
- 2.Qg2#
- 1...Re4
- 2.Rg8#
- 1...Rg8
- 2.Rxg8#
- 2.Qh1#
- 1...Se4
- 2.Qc1#
- 1...Sd5
- 2.Rb1#
- 1...d5
- 2.Qg6#
- 1...dxc6!
- threat
- 1.Bg8?
- threat
- 2.Qh1#
- 2.Qg2#
- 1...Rxg8
- 2.Rxg8#
- 2.Qh1#
- 1...Bxb7
- 2.Ra1#
- 1...exf2
- 2.Qg2#
- 1...dxc6
- 2.Rg7#
- 1...Se4
- 2.Qc1#
- 1...Sd5
- 2.Rb1#
- 1...d5
- 2.Qg6#
- 1...Re4!
- threat
- 1.Ba2?
- Keys
- 1.Bh1!
- threat
- 2.Qg2#
- 1...Bxb7
- 2.Ra1#
- 1...dxc6
- 2.Rg7#
- 1...Re4
- 2.Rg8#
- 1...Rg8
- 2.Rxg8#
- 1...Se4
- 2.Qc1#
- 1...Sd5
- 2.Rb1#
- 1...d5
- 2.Qg6#
- threat
- 1.Bh1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- R(h);OGATE::R(J)
- R(h);OGATE::R(J),XR(h)
- B(d);OGATE::R(J)
- B(d);OGATE,XR(I)::R(J)
- S(c);OGATE::QAR(H)
- S(c);OGATE,XR(I)::QAR(H)
- S(e);OGATE::R(I)
- S(e);OGATE,XB(G)::R(I)
- S(e);OGATE,XR(J)::R(I)
- P(g);OGATE,XQ(H)::R(I)
- Tries
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- P(b);XS(B)::QAR1(H)
- P(g);OGATE,XQ(H)::R(I)
- R(h);OGATE::R(J)
- S(c);OGATE::QAR(H)
- S(e);OGATE::R(I)
- P(f);OGATE::QAR(H)
- Refutation
- B(d);XR(I)
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(d);OGATE,XR(I)::R(J)
- P(b);XS(B)::QAR1(H)
- P(g);OGATE,XQ(H)::R(I)
- R(h);OGATE::R(J)
- S(c);OGATE::QAR(H)
- P(f);OGATE::QAR(H)
- Refutation
- S(e);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(d);OGATE,XR(I)::R(J)
- P(b);XS(B)::QAR1(H)
- P(g);OGATE,XQ(H)::R(I)
- R(h);OGATE::R(J)
- S(e);OGATE::R(I)
- P(f);OGATE::QAR(H)
- Refutation
- S(c);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(d);OGATE,XR(I)::R(J)
- P(b);XS(B)::QAR1(H)
- P(g);OGATE,XQ(H)::R(I)
- S(c);OGATE::QAR(H)
- S(e);OGATE::R(I)
- Refutation
- P(f);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(d);OGATE,XR(I)::R(J)
- P(b);XS(B)::QAR1(H)
- R(h);OGATE::R(J)
- S(c);OGATE::QAR(H)
- S(e);OGATE::R(I)
- P(f);OGATE::QAR(H)
- Refutation
- P(g);XQ(H)
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(d);OGATE,XR(I)::R(J)
- P(b);XS(B)::QAR1(H)
- P(g);OGATE,XQ(H)::R(I)
- S(c);OGATE::QAR(H)
- S(e);OGATE::R(I)
- P(f);OGATE::QAR(H)
- Refutation
- R(h);
- Try
- Actual
- B(G);
- Threat
- QAR1(H)
- Vars
- B(d);OGATE,XR(I)::R(J)
- P(g);OGATE,XQ(H)::R(I)
- R(h);OGATE::R(J)
- R(h);OGATE::R(J),XR(h)
- S(c);OGATE::QAR(H)
- S(e);OGATE::R(I)
- P(f);OGATE::QAR(H)
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).