MESON Chess Problem Database
Problem Display
PID: 117127 (1B1nq3/3pp2b/NK3P2/2pk2r1/R7/1nP2p1B/5N2/4Q3 w - - 0 1)
Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)
Trud, 1928-29
#2
9 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qe5#
- 1...Rg2
- 2.Qe5#
- 1...Rg3
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Qe4#
- 1...Rg6
- 2.Qe4#
- 2.Qe5#
- 1...Rg7
- 2.Qe5#
- 1...Rg8
- 2.Qe5#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qe5#
- 1...Bg8
- 2.Qe4#
- 1...Sd4
- 2.c4#
- 1...c4
- 2.Sb4#
- 1...d6
- 2.Sc7#
- 1...Rg1
- Tries
- 1.Sd1?
- threat
- 2.Se3#
- 1...Rg4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Qe4#
- 1...Bf5
- 2.Qe5#
- 1...Sd4
- 2.c4#
- 1...c4
- 2.Sb4#
- 1...d6
- 2.Sc7#
- 1...exf6!
- threat
- 1.Bf5?
- threat
- 2.Qe4#
- 2.Qe5#
- 1...Rxf5
- 2.Qe4#
- 1...Bxf5
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...Sd2
- 2.Qxd2#
- 2.Qe5#
- 1...Sc6
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...d6
- 2.Sc7#
- 2.Qe4#
- 1...e5
- 2.Qe4#
- 1...exf6!
- threat
- 1.Be5?
- threat
- 2.Sc7#
- 2.c4#
- 1...Rg4
- 2.Sc7#
- 1...Rf5
- 2.Sc7#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Sc7#
- 1...Bd3
- 2.Sc7#
- 1...Sd2
- 2.Sc7#
- 1...Sa5
- 2.Sc7#
- 1...Se6
- 2.c4#
- 1...c4
- 2.Sb4#
- 2.Sc7#
- 1...Rxe5!
- threat
- 1.Re4?
- threat
- 2.c4#
- 1...Bxe4
- 2.Qxe4#
- 1...Sd2
- 2.Qxd2#
- 1...Sa5
- 2.Qd2#
- 2.Qd1#
- 1...c4
- 2.Sb4#
- 1...Sd4!
- threat
- 1.Qe3?
- threat
- 2.c4#
- 1...Rg4
- 2.Qe5#
- 1...Sd2
- 2.Qxc5#
- 1...Sa5
- 2.Qxc5#
- 1...c4
- 2.Sb4#
- 1...Bd3!
- threat
- 1.Qxe7?
- threat
- 2.Sc7#
- 2.Qd6#
- 1...Qf8
- 2.Sc7#
- 1...Se6
- 2.Qd6#
- 1...Sb7
- 2.Sc7#
- 1...Sf7
- 2.Sc7#
- 1...d6
- 2.Sc7#
- 2.Qxd6#
- 1...Qxe7!
- threat
- 1.Sd1?
- Keys
- 1.Sg4!
- threat
- 2.Se3#
- 1...Rxg4
- 2.Qe5#
- 1...exf6
- 2.Sxf6#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Qe4#
- 1...Bf5
- 2.Qe5#
- 1...Sd4
- 2.c4#
- 1...c4
- 2.Sb4#
- 1...d6
- 2.Sc7#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(e);N_GUARD::QAR1(A)
- R(e);N_GUARD::QAR1(A),XR(e)
- R(e);S_CUTB(h)::QAB1(A)
- B(h);N_GUARD::QAB1(A),XB(h)
- B(h);S_CUTR(e)::QAR1(A)
- B(h);N_GUARD::QAB1(A)
- S(a);SBLOCK::P(C)
- P(c);N_GUARD,SBLOCK::S(F)
- P(f);SBLOCK::S(F)
- Tries
- Try
- S(B);
- Threat
- S(B)
- Vars
- R(e);N_GUARD::QAR1(A)
- R(e);N_GUARD::QAR1(A),XR(e)
- R(e);S_CUTB(h)::QAB1(A)
- B(h);S_CUTR(e)::QAR1(A)
- S(a);SBLOCK::P(C)
- P(c);N_GUARD,SBLOCK::S(F)
- P(f);SBLOCK::S(F)
- Refutation
- P(g);XP(H)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);XB(D)::QAB1(A)
- B(h);XB(D)::QAR1(A)
- R(e);::QAR1(A)
- S(i);::QAB1(A)
- P(g);::QAB1(A)
- Refutation
- P(g);XP(H)
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- R(e);::S(F)
- B(h);N_GUARD::QAB1(A),XB(h)
- B(h);::S(F)
- S(a);::S(F)
- S(i);::P(C)
- Refutation
- R(e);XB(I)
- Try
- R(E);
- Threat
- P(C)
- Vars
- B(h);OGATE,XR(E)::QAB1(A),XB(h)
- S(a);N_GUARD::QAR(A),XS(a)
- P(c);N_GUARD::S(F)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- P(C)
- Vars
- R(e);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR1(A),XP(c)
- P(c);N_GUARD,SBLOCK::S(F)
- Refutation
- B(h);
- Try
- Q(A);XP(g)
- Threat
- DUALS(2)
- Vars
- Q(j);::S(F)
- S(i);::QAR1(A)
- S(i);::S(F)
- Refutation
- Q(j);XQ(A)
- Try
- Actual
- S(B);
- Threat
- S(B)
- Vars
- R(e);N_GUARD,XS(B)::QAR1(A)
- P(g);XP(H)::S(B),XP(g)
- R(e);N_GUARD::QAR1(A),XR(e)
- R(e);S_CUTB(h)::QAB1(A)
- B(h);S_CUTR(e)::QAR1(A)
- S(a);SBLOCK::P(C)
- P(c);N_GUARD,SBLOCK::S(F)
- P(f);SBLOCK::S(F)
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).