MESON Chess Problem Database
Problem Display
PID: 232679 (b1B3Q1/4r3/5p2/1R3P2/3NkP1p/1N4b1/1n2K2p/r1B2R2 w - - 0 1)
Dittrich, Stefan
Freie Presse, 1990
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re6
- 2.Qxe6#
- 1...Ra7
- 2.Qe6#
- 1...Rb7
- 2.Qd5#
- 2.Qe6#
- 1...Rc7
- 2.Qe6#
- 1...Rd7
- 2.Qe6#
- 1...Rg7
- 2.Qe6#
- 1...Rh7
- 2.Qe6#
- 1...Re8
- 2.Qxe8#
- 1...Be1
- 2.Qg2#
- 1...Bf2
- 2.Qg2#
- 1...Bxf4
- 2.Rxf4#
- 2.Qg2#
- 1...Bd5
- 2.Qxd5#
- 1...Re6
- Tries
- 1.Sf3?
- threat
- 2.Sc5#
- 2.Sfd2#
- 1...Rxc1
- 2.Sfd2#
- 1...Bxf4
- 2.Sc5#
- 1...Re5
- 2.Sfd2#
- 1...Re6
- 2.Sfd2#
- 2.Qxe6#
- 1...Rc7
- 2.Sfd2#
- 2.Qe6#
- 1...Rd7
- 2.Qe6#
- 1...Rf7
- 2.Sfd2#
- 1...Be1
- 2.Sc5#
- 1...Sd3
- 2.Sfd2#
- 2.Qc4#
- 1...Sa4
- 2.Sfd2#
- 2.Rb4#
- 2.Qc4#
- 1...Sc4
- 2.Sc5#
- 2.Qxc4#
- 1...Bf2!
- threat
- 1.Sc6?
- threat
- 2.Sd2#
- 2.Sc5#
- 2.Qd5#
- 1...Rxc1
- 2.Sd2#
- 2.Qd5#
- 1...Bxf4
- 2.Sc5#
- 2.Rxf4#
- 2.Qd5#
- 2.Qg2#
- 1...Re5
- 2.Sd2#
- 1...Re6
- 2.Sd2#
- 2.Qxe6#
- 1...Rd7
- 2.Qe6#
- 1...Rf7
- 2.Sd2#
- 1...Be1
- 2.Sc5#
- 2.Qd5#
- 2.Qg2#
- 1...Bf2
- 2.Qd5#
- 2.Qg2#
- 1...Sd3
- 2.Sd2#
- 2.Qc4#
- 2.Qd5#
- 1...Sa4
- 2.Sd2#
- 2.Rb4#
- 2.Qc4#
- 2.Qd5#
- 1...Sc4
- 2.Sc5#
- 2.Qxc4#
- 2.Qd5#
- 1...Bxc6!
- threat
- 1.Se6?
- threat
- 2.Sd2#
- 2.Sec5#
- 1...Rxc1
- 2.Sd2#
- 1...Rxe6
- 2.Qxe6#
- 1...Bxf4
- 2.Rxf4#
- 2.Qg2#
- 1...Bd5
- 2.Sec5#
- 1...Rc7
- 2.Sd2#
- 1...Rf7
- 2.Sd2#
- 1...Be1
- 2.Sec5#
- 2.Qg2#
- 1...Bf2
- 2.Sd2#
- 2.Qg2#
- 1...Sd3
- 2.Sd2#
- 1...Sa4
- 2.Sd2#
- 1...Sc4
- 2.Sec5#
- 1...Rd7!
- threat
- 1.Be3?
- threat
- 2.Sd2#
- 2.Sc5#
- 1...Bxf4
- 2.Sd2#
- 2.Rxf4#
- 2.Qg2#
- 1...Rc1
- 2.Sd2#
- 1...Rd1
- 2.Sc5#
- 1...Re5
- 2.Sd2#
- 1...Re6
- 2.Sd2#
- 2.Qxe6#
- 1...Rc7
- 2.Sd2#
- 2.Qe6#
- 1...Rf7
- 2.Sd2#
- 1...Be1
- 2.Sc5#
- 2.Qg2#
- 1...Sd3
- 2.Sd2#
- 1...Sa4
- 2.Sd2#
- 1...Sc4
- 2.Sc5#
- 1...Re1+!
- threat
- 1.Bb7+?
- 1...Rxb7
- 2.Qd5#
- 2.Qe6#
- 1...Bxb7!
- 1...Rxb7
- 1.Qc4?
- threat
- 2.Sd2#
- 2.Sc5#
- 1...Bxf4
- 2.Rxf4#
- 1...Re5
- 2.Sd2#
- 1...Rc7
- 2.Sd2#
- 2.Qe6#
- 1...Be1
- 2.Sc5#
- 1...Bf2
- 2.Sc5#
- 1...Sd3
- 2.Sd2#
- 2.Sc2#
- 2.Sf3#
- 2.Sc6#
- 2.Se6#
- 2.Qxd3#
- 1...Sa4
- 2.Sd2#
- 2.Sc2#
- 2.Sf3#
- 2.Sc6#
- 2.Se6#
- 2.Qd3#
- 2.Qc2#
- 1...Sxc4!
- threat
- 1.Qxg3?
- threat
- 2.Qg2#
- 2.Qe3#
- 2.Qf3#
- 1...h1Q
- 2.Qe3#
- 1...h1B
- 2.Qe3#
- 1...Rg7
- 2.Qe3#
- 2.Qf3#
- 1...Sd1
- 2.Qg2#
- 2.Qd3#
- 2.Qf3#
- 1...Sc4
- 2.Qg2#
- 2.Qd3#
- 2.Qf3#
- 1...h3
- 2.Qe3#
- 2.Qf3#
- 1...hxg3!
- threat
- 1.Qd8?
- threat
- 2.Sd2#
- 2.Sc5#
- 2.Qxe7#
- 1...Rxc1
- 2.Sd2#
- 2.Qxe7#
- 1...Bxf4
- 2.Rxf4#
- 1...Ra6
- 2.Sd2#
- 2.Sc5#
- 1...Raa7
- 2.Sd2#
- 2.Sc5#
- 1...Re5
- 2.Sd2#
- 1...Re6
- 2.Sd2#
- 2.Sc5#
- 1...Rea7
- 2.Sd2#
- 2.Sc5#
- 1...Rb7
- 2.Sd2#
- 2.Sc5#
- 2.Qd5#
- 1...Rc7
- 2.Sd2#
- 1...Rf7
- 2.Sd2#
- 2.Sc5#
- 1...Rg7
- 2.Sd2#
- 2.Sc5#
- 1...Rh7
- 2.Sd2#
- 2.Sc5#
- 1...Re8
- 2.Sd2#
- 2.Sc5#
- 2.Qxe8#
- 1...Be1
- 2.Sc5#
- 2.Qxe7#
- 1...Bf2
- 2.Sc5#
- 2.Qxe7#
- 1...Bd5
- 2.Qxd5#
- 1...Sd3
- 2.Sd2#
- 1...Sa4
- 2.Sd2#
- 2.Qxe7#
- 1...Sc4
- 2.Sc5#
- 1...Rd7!
- threat
- 1.Sf3?
- Keys
- 1.Sc2!
- threat
- 2.Sd2#
- 2.Sc5#
- 1...Bxf4
- 2.Rxf4#
- 2.Qg2#
- 1...Re5
- 2.Sd2#
- 1...Re6
- 2.Sd2#
- 2.Qxe6#
- 1...Rc7
- 2.Sd2#
- 2.Qe6#
- 1...Rd7
- 2.Qe6#
- 1...Rf7
- 2.Sd2#
- 1...Be1
- 2.Sc5#
- 2.Qg2#
- 1...Bf2
- 2.Qg2#
- 1...Sd3
- 2.Sd2#
- 2.Qc4#
- 1...Sa4
- 2.Sd2#
- 2.Rb4#
- 2.Qc4#
- 1...Sc4
- 2.Sc5#
- 2.Qxc4#
- threat
- 1.Sc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(h);N_GUARD::QAR2(J),XR(h)
- R(h);N_GUARD::QAR2(J)
- R(h);OGATEB::QAR(J),XR(h)
- B(d);OGATE::QAB(J)
- B(i);N_GUARD::QAB1(J),XB(i)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(a);XB(A)::S(E)
- B(d);XP(F)::S(D)
- R(h);::S(E)
- R(h);N_GUARD::QAR2(J)
- B(d);::S(D)
- Refutation
- B(d);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(h);::S(D)
- R(h);N_GUARD::QAR2(J)
- Refutation
- B(i);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(a);XB(A)::S(D)
- R(h);OGATE,XS(E)::QAR2(J),XR(h)
- B(i);::S(E)
- R(h);::S(D)
- S(b);::S(D)
- S(b);::S(E)
- Refutation
- R(h);
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(a);::S(D)
- R(h);::S(D)
- S(b);::S(D)
- Refutation
- R(a);CHECK
- Try
- B(I);CHECK
- Refutation
- B(i);XB(I)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- B(d);OGATE,XP(F)::R1(B),XB(d)
- R(h);::S(D)
- B(d);::S(D)
- Refutation
- S(b);XQ(J)
- Try
- Q(J);XB(d)
- Threat
- DUALS(3)
- Vars
- P(c);::QAR1(J)
- Refutation
- P(f);XQ(J)
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- B(d);OGATE,XP(F)::R1(B),XB(d)
- R(h);::S(D)
- B(i);N_GUARD::QAB1(J),XB(i)
- S(b);::S(D)
- Refutation
- R(h);
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- R(h);::S(D)
- R(h);N_GUARD::QAR2(J)
- B(d);OGATE::QAB(J)
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).