MESON Chess Problem Database
Problem Display
PID: 59693 (1R5B/2pB3K/b2N2n1/r2R2pp/rP3kp1/1nN1p1p1/3bQ1P1/8 w - - 0 1)
Rukhlis, Efim Naumovich
2/3 Prize, Vecherni Leningrad, 1967
#2
10 + 13
| 3772 | FIDE Album (1965-1967) | 1976 |
| 133 | The Problemist Supplement | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Qf1#
- 1...Rxd5
- 2.Sxd5#
- 1...Bxe2
- 2.Sxe2#
- 1...Bb5
- 2.Rf5#
- 1...Bb7
- 2.Qf1#
- 1...Bc8
- 2.Qf1#
- 1...Sa1
- 2.Rd4#
- 1...Sc1
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sc5
- 2.Rf5#
- 1...Sh4
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Se7
- 2.Be5#
- 1...Sf8+
- 2.Rxf8#
- 1...h4
- 2.Qxg4#
- 1...c5
- 2.Rf5#
- 1...Rb5
- Tries
- 1.Scb5?
- threat
- 2.Rf5#
- 2.Qf1#
- 1...Sf8+
- 2.Rxf8#
- 1...Rxb5
- 2.Qf1#
- 1...Bxb5
- 2.Rf5#
- 1...Ra1
- 2.Rf5#
- 1...Be1
- 2.Rf5#
- 1...Sd4
- 2.Rxd4#
- 1...Sh4
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Se7
- 2.Be5#
- 2.Qf1#
- 1...cxd6!
- threat
- 1.Sdb5?
- threat
- 2.Rf5#
- 2.Qf1#
- 1...Sf8+
- 2.Rxf8#
- 1...Rxb5
- 2.Qf1#
- 1...Bxb5
- 2.Rf5#
- 1...Ra1
- 2.Rf5#
- 1...Be1
- 2.Rf5#
- 1...Sd4
- 2.Rxd4#
- 1...Sh4
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Se7
- 2.Be5#
- 2.Qf1#
- 1...Bxc3!
- threat
- 1.Bf6?
- threat
- 2.Bxg5#
- 1...Rxd5
- 2.Sxd5#
- 1...Se5
- 2.Bxe5#
- 1...Sf8+!
- threat
- 1.Rxa5?
- threat
- 2.Sd5#
- 2.Rf5#
- 1...Sf8+
- 2.Rxf8#
- 1...Bxc3
- 2.Rf5#
- 1...Sxa5
- 2.Sd5#
- 1...Sxh8
- 2.Rf5#
- 1...cxd6
- 2.Rf5#
- 1...Bd3
- 2.Sd5#
- 1...Bc4
- 2.Rf5#
- 1...Bb5
- 2.Sd5#
- 1...Bb7
- 2.Rf5#
- 1...Sd4
- 2.Sd5#
- 1...Sc5
- 2.Sd5#
- 1...Sh4
- 2.Sd5#
- 2.Be5#
- 1...Se5
- 2.Sd5#
- 2.Bxe5#
- 1...Se7
- 2.Be5#
- 1...c5
- 2.Sd5#
- 1...c6
- 2.Rf5#
- 1...Rxa5!
- threat
- 1.Rdb5?
- threat
- 2.Sd5#
- 2.Qf1#
- 1...Sf8+
- 2.Rxf8#
- 1...Rxb5
- 2.Qf1#
- 1...Bxc3
- 2.Qf1#
- 1...Bxb5
- 2.Sd5#
- 1...Sxh8
- 2.Qf1#
- 1...cxd6
- 2.Qf1#
- 1...Ra1
- 2.Sd5#
- 1...Be1
- 2.Sd5#
- 1...Sd4
- 2.Sd5#
- 1...Sh4
- 2.Sd5#
- 2.Be5#
- 1...Se5
- 2.Sd5#
- 2.Bxe5#
- 1...Se7
- 2.Be5#
- 2.Qf1#
- 1...c6
- 2.Qf1#
- 1...Bb7!
- threat
- 1.Rbb5?
- threat
- 2.Rf5#
- 2.Qf1#
- 1...Rxb5
- 2.Qf1#
- 1...Bxb5
- 2.Rf5#
- 1...Ra1
- 2.Rf5#
- 1...Be1
- 2.Rf5#
- 1...Sd4
- 2.Rxd4#
- 1...Sh4
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Se7
- 2.Be5#
- 2.Qf1#
- 1...Sf8+!
- threat
- 1.Qd3?
- threat
- 2.Se2#
- 2.Qe4#
- 2.Qf5#
- 1...Sf8+
- 2.Rxf8#
- 1...Rxb4
- 2.Se2#
- 2.Qf5#
- 1...Rxd5
- 2.Se2#
- 2.Sxd5#
- 2.Qe4#
- 1...Bxc3
- 2.Qe4#
- 2.Qf5#
- 1...Sc1
- 2.Rd4#
- 2.Qe4#
- 2.Qf5#
- 2.Qd4#
- 1...Sd4
- 2.Rxd4#
- 2.Qe4#
- 2.Qxd4#
- 1...Sc5
- 2.Se2#
- 2.Rf5#
- 2.Qf5#
- 1...Sh4
- 2.Se2#
- 2.Be5#
- 2.Qe4#
- 1...Se7
- 2.Se2#
- 2.Be5#
- 2.Qe4#
- 1...e2
- 2.Sxe2#
- 2.Qe4#
- 1...Bxd3!
- threat
- 1.Qc4+?
- 1...Sd4
- 2.Se2#
- 2.Rxd4#
- 2.Qxd4#
- 1...Bxc4!
- 1...Sd4
- 1.Qb5?
- threat
- 2.Se2#
- 2.Rf5#
- 1...Sf8+
- 2.Rxf8#
- 1...Rxb5
- 2.Se2#
- 1...Bxc3
- 2.Rf5#
- 1...Bxb5
- 2.Rf5#
- 1...cxd6
- 2.Rf5#
- 1...Sc1
- 2.Rd4#
- 2.Rf5#
- 1...Sd4
- 2.Rxd4#
- 1...Sh4
- 2.Se2#
- 2.Be5#
- 1...Se5
- 2.Se2#
- 2.Bxe5#
- 1...Se7
- 2.Se2#
- 2.Be5#
- 1...e2!
- threat
- 1.Qxa6?
- threat
- 2.Se2#
- 2.Qf1#
- 1...Sf8+
- 2.Rxf8#
- 1...Rxa6
- 2.Se2#
- 2.Rf5#
- 1...Bxc3
- 2.Qf1#
- 1...cxd6
- 2.Qf1#
- 1...Ra1
- 2.Se2#
- 1...Rb5
- 2.Se2#
- 1...Be1
- 2.Se2#
- 1...Sc1
- 2.Rd4#
- 2.Qf1#
- 2.Qc4#
- 1...Sd4
- 2.Rxd4#
- 1...Sh4
- 2.Se2#
- 2.Be5#
- 1...Se5
- 2.Se2#
- 2.Bxe5#
- 1...e2!
- threat
- 1.b5?
- threat
- 2.Rf5#
- 2.Qf1#
- 1...Sf8+
- 2.Rxf8#
- 1...Rxb5
- 2.Qf1#
- 1...Bxb5
- 2.Rf5#
- 1...Ra1
- 2.Rf5#
- 1...Be1
- 2.Rf5#
- 1...Sh4
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Se7
- 2.Be5#
- 2.Qf1#
- 1...Sd4!
- threat
- 1.Scb5?
- Keys
- 1.Bb5!
- threat
- 2.Rf5#
- 2.Qf1#
- 1...Sf8+
- 2.Rxf8#
- 1...Rxb5
- 2.Qf1#
- 1...Bxb5
- 2.Rf5#
- 1...cxd6
- 2.Qf1#
- 1...Ra1
- 2.Rf5#
- 1...Be1
- 2.Rf5#
- 1...Bc8
- 2.Qf1#
- 1...Sd4
- 2.Rxd4#
- 1...Sh4
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Se7
- 2.Be5#
- 2.Qf1#
- threat
- 1.Bb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- R(h);S_CUTB(k)::QAR(A)
- R(h);XR(E)::S(C),XR(h)
- B(k);XQ(A)::S(C),XB(k)
- B(k);S_CUTR(h)::R1(E)
- B(k);N_GUARD::QAR(A)
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- S(b);S_CUTR(h)::R1(E)
- S(l);N_GUARD::B(J)
- S(l);N_GUARD::B(J),XS(l)
- S(l);CHECK,N_GUARD::R(I),XS(l)
- P(j);N_GUARD::QAR1(A),XP(g)
- P(m);S_CUTR(h)::R1(E)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- S(l);CHECK,N_GUARD::R(I),XS(l)
- R(h);XS(C)::QAR(A)
- B(k);XS(C)::R1(E)
- R(e);::R1(E)
- B(a);::R1(E)
- S(b);N_GUARD::R(E),XS(b)
- S(l);N_GUARD::B(J)
- S(l);N_GUARD::B(J),XS(l)
- Refutation
- P(m);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(l);CHECK,N_GUARD::R(I),XS(l)
- R(h);XS(F)::QAR(A)
- B(k);XS(F)::R1(E)
- R(e);::R1(E)
- B(a);::R1(E)
- S(b);N_GUARD::R(E),XS(b)
- S(l);N_GUARD::B(J)
- S(l);N_GUARD::B(J),XS(l)
- Refutation
- B(a);XS(C)
- Try
- B(J);
- Threat
- B(J),XP(i)
- Vars
- R(h);XR(E)::S(C),XR(h)
- S(l);N_GUARD::B(J),XS(l)
- Refutation
- S(l);CHECK
- Try
- R(E);XR(h)
- Threat
- DUALS(2)
- Vars
- S(l);CHECK,N_GUARD::R(I),XS(l)
- B(a);XS(C)::R1(E)
- S(b);XR(E)::S(C)
- S(l);XB(J)::R1(E)
- P(m);XS(F)::R1(E)
- B(k);::S(C)
- B(k);::R1(E)
- S(b);::S(C)
- S(l);N_GUARD::B(J)
- P(m);::S(C)
- P(m);::R1(E)
- Refutation
- R(e);XR(E)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- S(l);CHECK,N_GUARD::R(I),XS(l)
- R(h);XR(E)::QAR(A)
- B(a);XS(C)::QAR(A)
- B(k);XR(E)::S(C)
- S(l);XB(J)::QAR(A)
- P(m);XS(F)::QAR(A)
- R(e);::S(C)
- B(a);::S(C)
- S(b);::S(C)
- P(m);::QAR(A)
- Refutation
- B(k);
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(h);XR(I)::QAR(A)
- B(k);XR(I)::R1(E)
- R(e);::R1(E)
- B(a);::R1(E)
- S(b);N_GUARD::R(E),XS(b)
- S(l);N_GUARD::B(J)
- S(l);N_GUARD::B(J),XS(l)
- Refutation
- S(l);CHECK
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- S(l);CHECK,N_GUARD::R(I),XS(l)
- Refutation
- B(k);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- B(k);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(l);CHECK,N_GUARD::R(I),XS(l)
- R(h);XQ(A)::S(C)
- B(a);XS(C)::R1(E)
- B(k);XQ(A)::R1(E)
- P(m);XS(F)::R1(E)
- S(b);N_GUARD::R(E),XS(b)
- Refutation
- P(c);
- Try
- Q(A);XB(k)
- Threat
- DUALS(2)
- Vars
- S(l);CHECK,N_GUARD::R(I),XS(l)
- B(a);XS(C)::QAR(A)
- P(m);XS(F)::QAR(A)
- R(e);::S(C)
- R(h);::S(C)
- B(a);::S(C)
- S(b);N_GUARD::R(E),XS(b)
- Refutation
- P(c);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- S(l);CHECK,N_GUARD::R(I),XS(l)
- R(h);XP(D)::QAR(A)
- B(k);XP(D)::R1(E)
- R(e);::R1(E)
- B(a);::R1(E)
- S(l);N_GUARD::B(J)
- S(l);N_GUARD::B(J),XS(l)
- Refutation
- S(b);
- Try
- Actual
- B(G);
- Threat
- DUALS(2)
- Vars
- S(l);CHECK,N_GUARD::R(I),XS(l)
- R(h);XB(G)::QAR(A)
- B(k);XB(G)::R1(E)
- P(m);XS(F)::QAR(A)
- R(e);::R1(E)
- B(a);::R1(E)
- B(k);::QAR(A)
- S(b);N_GUARD::R(E),XS(b)
- S(l);N_GUARD::B(J)
- S(l);N_GUARD::B(J),XS(l)
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).