MESON Chess Problem Database
Problem Display
PID: 244404 (4r1bb/1pQ3n1/1P2p2q/1K3p2/1P1Nkpp1/R5rR/B2PpP2/B2Nn3 w - - 0 1)
Dittrich, Stefan
Schach, 1981
#2
12 + 14
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sf3
- 2.d3#
- 1...Sf3
- Tries
- 1.Sc2?
- threat
- 2.Qe5#
- 2.Qc4#
- 2.Qxb7#
- 1...Sxc2
- 2.Qe5#
- 2.Qxb7#
- 1...Sd3
- 2.Qxb7#
- 1...Qf6
- 2.Qxb7#
- 1...Rc3
- 2.Sxc3#
- 1...Rd3
- 2.Qe5#
- 1...Re7
- 2.Qe5#
- 2.Qc4#
- 1...Rb8
- 2.Qe5#
- 2.Qc4#
- 1...Rc8
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sf3
- 2.Qxb7#
- 2.d3#
- 1...Sh5
- 2.Qxb7#
- 1...f3
- 2.Qe5#
- 2.Qc4#
- 1...e5!
- threat
- 1.Sxe2?
- threat
- 2.Qe5#
- 2.Qc4#
- 2.Qxb7#
- 1...Sd3
- 2.Qxb7#
- 1...Qf6
- 2.Qxf4#
- 2.Qxb7#
- 1...Rc3
- 2.Sdxc3#
- 1...Rd3
- 2.Qe5#
- 1...Re7
- 2.Qe5#
- 2.Qc4#
- 1...Rb8
- 2.Qe5#
- 2.Qc4#
- 1...Rc8
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sc2
- 2.Qe5#
- 2.Qxb7#
- 1...Sf3
- 2.Qc2#
- 2.Qxb7#
- 2.d3#
- 1...Sh5
- 2.Qxb7#
- 1...e5!
- threat
- 1.Sf3?
- threat
- 2.Qe5#
- 2.Qc4#
- 2.Qxb7#
- 1...Sxf3
- 2.Qc2#
- 2.Qxb7#
- 2.d3#
- 1...Sd3
- 2.Qxb7#
- 1...Qf6
- 2.Qxb7#
- 1...Re7
- 2.Qe5#
- 2.Qc4#
- 1...Rb8
- 2.Qe5#
- 2.Qc4#
- 1...Rc8
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Sc2
- 2.Qe5#
- 2.Qxc2#
- 2.Qxb7#
- 1...Sh5
- 2.Qxb7#
- 1...e5!
- threat
- 1.Sxe6?
- threat
- 2.Sc5#
- 2.Qe5#
- 2.Qc4#
- 2.Qxb7#
- 1...Rxe6
- 2.Qc4#
- 1...Bxe6
- 2.Qe5#
- 1...Sxe6
- 2.Qxb7#
- 1...Rb3
- 2.Qe5#
- 2.Qc4#
- 2.Qxb7#
- 1...Sd3
- 2.Qxb7#
- 1...Qf6
- 2.Sc5#
- 2.Qxf4#
- 2.Qxb7#
- 1...Rc3
- 2.Sxc3#
- 1...Rd3
- 2.Sc5#
- 2.Qe5#
- 1...Re7
- 2.Sc5#
- 2.Qe5#
- 2.Qc4#
- 1...Rb8
- 2.Sc5#
- 2.Qe5#
- 2.Qc4#
- 1...Rc8
- 2.Sc5#
- 2.Qe5#
- 1...Rd8
- 2.Sc5#
- 2.Qe5#
- 1...Sc2
- 2.Sc5#
- 2.Qe5#
- 2.Qxb7#
- 1...Sf3
- 2.Sc5#
- 2.Qc2#
- 2.Qxb7#
- 2.d3#
- 1...Sh5
- 2.Sc5#
- 2.Qxb7#
- 1...Qxe6!
- threat
- 1.Qc6+?
- 1...Ke5
- 2.Sf3#
- 1...bxc6+!
- 1...Ke5
- 1.f3+?
- 1...Sxf3
- 2.Sf2#
- 2.d3#
- 1...gxf3
- 2.Sf2#
- 1...Rxf3!
- 1...Sxf3
- 1.Sc2?
- Keys
- 1.Sb3!
- threat
- 2.Sc5#
- 1...Kd3
- 2.Qc4#
- 1...Kf3
- 2.Qxb7#
- 1...Kd5
- 2.Qe5#
- 1...Rxb3
- 2.Qe5#
- 2.Qc4#
- 2.Qxb7#
- 1...Rc3
- 2.Sxc3#
- 1...Sd3
- 2.Qxb7#
- threat
- 1.Sb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- S(a);N_GUARD,S_CUTR(c)::P(D)
- Tries
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- S(a);::QAB(L),XP(j)
- Q(i);::QAB(L),XP(j)
- R(c);N_GUARD::S(B),XR(c)
- R(c);::QAR1(L)
- R(l);::QAR1(L)
- S(k);::QAB(L),XP(j)
- Refutation
- P(h);
- Try
- S(I);XP(b)
- Threat
- DUALS(3)
- Vars
- S(a);::QAB(L),XP(j)
- R(c);N_GUARD::S(B),XR(c)
- R(c);::QAR1(L)
- R(l);::QAR1(L)
- S(k);::QAB(L),XP(j)
- Refutation
- P(h);
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- S(a);::QAB(L),XP(j)
- Q(i);::QAB(L),XP(j)
- R(l);::QAR1(L)
- S(k);::QAB(L),XP(j)
- Refutation
- P(h);
- Try
- S(I);XP(h)
- Threat
- DUALS(4)
- Vars
- R(l);XS(I)::QAR2(L)
- B(m);XS(I)::QAR1(L)
- S(k);XS(I)::QAB(L),XP(j)
- S(a);::QAB(L),XP(j)
- R(c);N_GUARD::S(B),XR(c)
- Refutation
- Q(i);XS(I)
- Try
- Q(L);CHECK
- Vars
- K(d);P-FLIGHT::B(A)+S(I),DCHECK
- Refutation
- P(j);CHECK,XQ(L)
- Try
- P(E);CHECK
- Vars
- P(f);XP(E)::S(B)
- Refutation
- R(c);XP(E)
- Try
- Actual
- S(I);
- Threat
- S(I)
- Vars
- K(d);P_SPINR(c),S_FLIGHT::QAB1(L)
- K(d);P_SPINR(c),S_FLIGHT::QAB(L),XP(j)
- K(d);S_FLIGHT::QAR1(L)
- R(c);N_GUARD::S(B),XR(c)
- S(a);SBLOCK::QAB(L),XP(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).