MESON Chess Problem Database
Problem Display
PID: 177900 (1R1n4/1NpNK3/p1k1n3/2p1B3/2rpP3/1Qb3p1/4p1B1/4q3 w - - 0 1)
Dittrich, Stefan
5th Comm., Sahs (Latvia), 1984
#2
8 + 12
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Qxa4#
- 1...Rb4
- 2.Sa5#
- 1...Bb4
- 2.Qa4#
- 1...Sf4
- 2.Sxd8#
- 1...Sg5
- 2.Sxd8#
- 1...Sg7
- 2.Sxd8#
- 1...Sf8
- 2.Sxd8#
- 1...Sxb7
- 2.Qxb7#
- 1...Ra4
- Tries
- 1.Bf4?
- threat
- 2.Se5#
- 2.e5#
- 1...Sxf4
- 2.Sxd8#
- 2.Se5#
- 1...Rb4
- 2.Sa5#
- 1...Bb4
- 2.Qa4#
- 1...Qf2
- 2.Se5#
- 1...Qb1
- 2.Se5#
- 1...Qf1
- 2.Se5#
- 1...Qg1
- 2.Se5#
- 1...Qh1
- 2.Se5#
- 1...Sg5
- 2.Sxd8#
- 2.Se5#
- 1...Sf7
- 2.e5#
- 1...d3!
- threat
- 1.Bd6?
- threat
- 2.Se5#
- 2.e5#
- 1...cxd6
- 2.Qb6#
- 1...Rb4
- 2.Sa5#
- 1...Bb4
- 2.Qa4#
- 1...Qf2
- 2.Se5#
- 1...Qb1
- 2.Se5#
- 1...Qf1
- 2.Se5#
- 1...Qg1
- 2.Se5#
- 1...Qh1
- 2.Se5#
- 1...Sf4
- 2.Sxd8#
- 2.Se5#
- 1...Sg5
- 2.Sxd8#
- 2.Se5#
- 1...Sf7
- 2.e5#
- 1...d3!
- threat
- 1.Bf6?
- threat
- 2.Se5#
- 2.e5#
- 1...Rb4
- 2.Sa5#
- 1...Bb4
- 2.Qa4#
- 1...Qf2
- 2.Se5#
- 1...Qb1
- 2.Se5#
- 1...Qf1
- 2.Se5#
- 1...Qg1
- 2.Se5#
- 1...Qh1
- 2.Se5#
- 1...Sf4
- 2.Sxd8#
- 2.Se5#
- 1...Sg5
- 2.Sxd8#
- 2.Se5#
- 1...Sf7
- 2.e5#
- 1...d3!
- threat
- 1.Bg7?
- threat
- 2.Se5#
- 2.e5#
- 1...Rb4
- 2.Sa5#
- 1...Bb4
- 2.Qa4#
- 1...Qf2
- 2.Se5#
- 1...Qb1
- 2.Se5#
- 1...Qf1
- 2.Se5#
- 1...Qg1
- 2.Se5#
- 1...Qh1
- 2.Se5#
- 1...Sf4
- 2.Sxd8#
- 2.Se5#
- 1...Sg5
- 2.Sxd8#
- 2.Se5#
- 1...Sf7
- 2.e5#
- 1...d3!
- threat
- 1.Bh8?
- threat
- 2.Se5#
- 2.e5#
- 1...Rb4
- 2.Sa5#
- 1...Bb4
- 2.Qa4#
- 1...Qf2
- 2.Se5#
- 1...Qb1
- 2.Se5#
- 1...Qf1
- 2.Se5#
- 1...Qg1
- 2.Se5#
- 1...Qh1
- 2.Se5#
- 1...Sf4
- 2.Sxd8#
- 2.Se5#
- 1...Sg5
- 2.Sxd8#
- 2.Se5#
- 1...Sf7
- 2.e5#
- 1...d3!
- threat
- 1.Bf4?
- Keys
- 1.Bxd4!
- threat
- 2.Se5#
- 2.e5#
- 1...Rxd4
- 2.Se5#
- 1...Bxd4
- 2.e5#
- 1...Sxd4
- 2.Sxd8#
- 2.Se5#
- 1...Rb4
- 2.Sa5#
- 1...Bb4
- 2.Qa4#
- 1...Qf2
- 2.Se5#
- 1...Qb1
- 2.Se5#
- 1...Qf1
- 2.Se5#
- 1...Qg1
- 2.Se5#
- 1...Qh1
- 2.Se5#
- 1...Sf4
- 2.Sxd8#
- 2.Se5#
- 1...Sg5
- 2.Sxd8#
- 2.Se5#
- 1...Sf7
- 2.e5#
- threat
- 1.Bxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 6
- Sets
- R(e);N_GUARD::QAB(B),XR(e)
- R(e);S_CUTB(c)::S(E)
- B(c);S_CUTR(e)::QAB(B)
- S(j);N_GUARD::S(E),XS(l)
- S(l);OGATE,XS(E)::QAB1(B),XS(l)
- Tries
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);S_CUTB(c)::S(E)
- B(c);S_CUTR(e)::QAB(B)
- Q(a);::S(F)
- S(l);::B(A)+P(C)
- Refutation
- P(f);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- P(k);N_GUARD,XB(D)::QAR1(B)
- R(e);S_CUTB(c)::S(E)
- B(c);S_CUTR(e)::QAB(B)
- Q(a);::S(F)
- S(l);::B(A)+P(C)
- Refutation
- P(f);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);S_CUTB(c)::S(E)
- B(c);S_CUTR(e)::QAB(B)
- Q(a);::S(F)
- S(l);::B(A)+P(C)
- Refutation
- P(f);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);S_CUTB(c)::S(E)
- B(c);S_CUTR(e)::QAB(B)
- Q(a);::S(F)
- S(l);::B(A)+P(C)
- Refutation
- P(f);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);S_CUTB(c)::S(E)
- B(c);S_CUTR(e)::QAB(B)
- Q(a);::S(F)
- S(l);::B(A)+P(C)
- Refutation
- P(f);
- Try
- Actual
- B(D);XP(f)
- Threat
- DUALS(2)
- Vars
- R(e);XB(D)::S(F)
- B(c);XB(D)::B(A)+P(C)
- R(e);S_CUTB(c)::S(E)
- B(c);S_CUTR(e)::QAB(B)
- Q(a);::S(F)
- S(l);::B(A)+P(C)
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).