MESON Chess Problem Database
Problem Display
PID: 177989 (1Kb1B3/2ppP2p/2k2N1Q/1p2PP2/1P6/1pN1BR2/1P4r1/2R4r w - - 0 1)
Dombrovskis, Alfreds A
Kulis, Imants
Sahs (Latvia), 1986
#2
13 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxc1
- 2.Sg4#
- 1...Re1
- 2.Sg4#
- 1...Rf1
- 2.Sg4#
- 1...Rhg1
- 2.Sg4#
- 1...Rhh2
- 2.Se2#
- 1...Rh3
- 2.Se2#
- 1...Rh5
- 2.Se2#
- 1...Rxh6
- 2.Se2#
- 1...Rgg1
- 2.Sd1#
- 1...Rxb2
- 2.Sh5#
- 1...Rc2
- 2.Sh5#
- 1...Re2
- 2.Sh5#
- 1...Rf2
- 2.Sh5#
- 1...Rgh2
- 2.Sh5#
- 1...Rg3
- 2.Sd1#
- 1...Rg5
- 2.Sd1#
- 1...Rg6
- 2.Sd1#
- 1...Rg7
- 2.Sd1#
- 1...Rg8
- 2.Sd1#
- 1...Ba6
- 2.Bxd7#
- 1...Bb7
- 2.Bxd7#
- 1...Rxc1
- Tries
- 1.Sxb5+?
- 1...Rxc1
- 2.Sa7#
- 1...Rc2
- 2.Sa7#
- 1...Kxb5!
- 1...Rxc1
- 1.Sxh7+?
- 1...Rg6
- 2.Qxg6#
- 1...Rxh6!
- 1...Rg6
- 1.Bf2?
- threat
- 2.Sd1#
- 1...Rxc1
- 2.Sg4#
- 1...Rxf2
- 2.Sh5#
- 1...Rd1
- 2.Sxd1#
- 1...Rh4
- 2.Sce4#
- 1...Rg4!
- threat
- 1.Rf2?
- threat
- 2.Sd1#
- 1...Rxc1
- 2.Sg4#
- 1...Rxf2
- 2.Sh5#
- 1...Rd1
- 2.Sxd1#
- 1...Rh4
- 2.Sce4#
- 1...Rg4!
- threat
- 1.Rg3?
- threat
- 2.Sh5#
- 1...Rxh6
- 2.Se2#
- 1...Rxg3
- 2.Sd1#
- 1...Rd1
- 2.Sfd5#
- 1...Rh5
- 2.Se2#
- 2.Sxh5#
- 1...Rd2!
- threat
- 1.Rh3?
- threat
- 2.Sg4#
- 1...Rxh3
- 2.Se2#
- 1...Rd2
- 2.Sfd5#
- 1...Rg4
- 2.Sxg4#
- 1...Rg5
- 2.Sd1#
- 1...Rg6
- 2.Sd1#
- 1...Rg7
- 2.Sd1#
- 1...Rg8
- 2.Sd1#
- 2.Sxg8#
- 1...Rd1!
- threat
- 1.Qxh1?
- threat
- 2.Se2#
- 1...Rxb2
- 2.Rf2#
- 1...Rg1
- 2.Sd1#
- 1...Rc2
- 2.Rf2#
- 1...Re2
- 2.Sxe2#
- 2.Rf2#
- 1...Rg4
- 2.Sce4#
- 1...Rd2!
- threat
- 1.Sxb5+?
- Keys
- 1.Bd4!
- 1...Rxc1
- 2.Sg4#
- 1...Rxh6
- 2.Se2#
- 1...Rxb2
- 2.Sh5#
- 1...Rc2
- 2.Sh5#
- 1...Rd1
- 2.Sg4#
- 1...Re1
- 2.Sg4#
- 1...Rf1
- 2.Sg4#
- 1...Rhg1
- 2.Sg4#
- 1...Rhh2
- 2.Se2#
- 1...Rh3
- 2.Se2#
- 1...Rh4
- 2.Se2#
- 1...Rh5
- 2.Se2#
- 1...Rgg1
- 2.Sd1#
- 1...Rd2
- 2.Sh5#
- 1...Re2
- 2.Sh5#
- 1...Rf2
- 2.Sh5#
- 1...Rgh2
- 2.Sh5#
- 1...Rg3
- 2.Sd1#
- 1...Rg4
- 2.Sd1#
- 1...Rg5
- 2.Sd1#
- 1...Rg6
- 2.Sd1#
- 1...Rg7
- 2.Sd1#
- 1...Rg8
- 2.Sd1#
- 1...Ba6
- 2.Bxd7#
- 1...Bb7
- 2.Bxd7#
- 1...Rxc1
- 1.Bd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD,XR(A)::QAR(J)+S(I)
- R(a);N_GUARD::QAR(J)+S(I)
- R(a);N_GUARD::R(A)+S(C)
- R(a);N_GUARD,XQ(J)::R(A)+S(C)
- R(b);N_GUARD::R(A)+S(C)
- R(b);N_GUARD,XP(B)::QAR(J)+S(I)
- R(b);N_GUARD::QAR(J)+S(I)
- B(i);N_GUARD::B(M),XP(g)
- Tries
- Try
- S(C);CHECK,XP(d)
- Vars
- R(a);XR(A)::S(C)
- R(b);P_SPINR(b)::S(C)
- Refutation
- K(e);S_FLIGHT,XS(C)
- Try
- S(I);CHECK,XP(h)
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR(J),XR(b)
- Refutation
- R(a);XQ(J)
- Try
- B(D);
- Threat
- R(A)+S(C)
- Vars
- R(a);N_GUARD,XR(A)::QAR(J)+S(I)
- R(b);N_GUARD,XB(D)::QAR(J)+S(I)
- R(a);::R(A)+S(C),XR(a)
- R(a);N_GUARD::R(A)+S(C)
- Refutation
- R(b);
- Try
- R(E);
- Threat
- R(A)+S(C)
- Vars
- R(a);N_GUARD,XR(A)::QAR(J)+S(I)
- R(b);N_GUARD,XR(E)::QAR(J)+S(I)
- R(a);::R(A)+S(C),XR(a)
- R(a);N_GUARD::R(A)+S(C)
- Refutation
- R(b);
- Try
- R(E);
- Threat
- QAR(J)+S(I)
- Vars
- R(a);N_GUARD,XQ(J)::R(A)+S(C)
- R(b);N_GUARD,XR(E)::R(A)+S(C)
- R(a);N_GUARD::QAR(J)+S(I)
- Refutation
- R(b);
- Try
- R(E);
- Threat
- QAR(J)+S(I)
- Vars
- R(a);N_GUARD,XR(E)::R(A)+S(C)
- R(b);N_GUARD::QAR(J)+S(I)
- R(b);::QAR(J)+S(I),XR(b)
- R(b);N_GUARD::R(A)+S(C)
- Refutation
- R(a);
- Try
- Q(J);XR(a)
- Threat
- R(A)+S(C)
- Vars
- R(b);OGATEB,XP(B)::QAB(J)+R(E)
- R(b);N_GUARD::R(A)+S(C)
- R(b);OGATEB::QAB(J)+R(E)
- Refutation
- R(b);
- Try
- Actual
- B(D);
- Vars
- R(a);N_GUARD,XR(A)::QAR(J)+S(I)
- R(a);N_GUARD,XQ(J)::R(A)+S(C)
- R(b);N_GUARD,XP(B)::QAR(J)+S(I)
- R(b);N_GUARD::QAR(J)+S(I)
- R(a);N_GUARD::QAR(J)+S(I)
- R(a);N_GUARD::R(A)+S(C)
- R(b);N_GUARD::R(A)+S(C)
- B(i);N_GUARD::B(M),XP(g)
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).