MESON Chess Problem Database
Problem Display
PID: 45511 (b3R2K/p1R4p/pP1k2p1/r2Np3/1PBP1B1r/5Q2/3N1p1b/4qn2 w - - 0 1)
Hirschenson, Aaron
2nd Prize, Israel Ring Ty., 1975
#2
11 + 13
| 3841 | The Art of Israeli Chess Composition | 1983 |
SOLUTION
- SOUND
- Sets
- 1...Qxd2
- 2.dxe5#
- 1...Qa1
- 2.Se4#
- 1...Qb1
- 2.dxe5#
- 1...Qc1
- 2.Se4#
- 2.dxe5#
- 1...Qd1
- 2.Se4#
- 2.dxe5#
- 1...Qe4
- 2.Sxe4#
- 1...Rc5
- 2.bxc5#
- 2.dxc5#
- 1...Se3
- 2.Se4#
- 2.dxe5#
- 1...Qxd2
- Tries
- 1.Se3?
- threat
- 2.Re6#
- 2.Rd8#
- 1...Rd5
- 2.Se4#
- 1...Bd5
- 2.dxe5#
- 1...Bc6
- 2.Re6#
- 2.Qxc6#
- 1...axb6!
- threat
- 1.Se7?
- threat
- 2.Sc8#
- 2.Rd8#
- 1...Rd5
- 2.Sc8#
- 1...Bd5
- 2.Sc8#
- 1...Bc6
- 2.Sc8#
- 2.Qxc6#
- 1...Bb7
- 2.Rd8#
- 1...axb6!
- threat
- 1.Be2?
- threat
- 2.Sc4#
- 2.dxe5#
- 1...Qxd2
- 2.dxe5#
- 1...Rxd5
- 2.Sc4#
- 2.Se4#
- 1...Bxf4
- 2.Sc4#
- 1...Bxd5
- 2.dxe5#
- 1...Sxd2
- 2.dxe5#
- 1...exf4
- 2.Sc4#
- 1...Qa1
- 2.Sc4#
- 1...Qc1
- 2.dxe5#
- 1...Rh5
- 2.Sc4#
- 1...Rc5
- 2.bxc5#
- 2.dxc5#
- 2.dxe5#
- 1...Se3
- 2.dxe5#
- 1...Qxe2!
- threat
- 1.Bb5?
- threat
- 2.Sc4#
- 2.Rd7#
- 1...Qxd2
- 2.Rd7#
- 2.dxe5#
- 1...Rxb5
- 2.Sc4#
- 1...Bxd5
- 2.Rd7#
- 1...Sxd2
- 2.Rd7#
- 1...Qe4
- 2.Rd7#
- 1...Qc1
- 2.Rd7#
- 2.dxe5#
- 1...Qe2
- 2.Rd7#
- 1...Bc6
- 2.Sc4#
- 1...Se3
- 2.Rd7#
- 2.dxe5#
- 1...axb5!
- threat
- 1.Bxh2?
- threat
- 2.Qf6#
- 2.Qf8#
- 1...Bxd5
- 2.Qf8#
- 1...Rf4!
- threat
- 1.Bg3?
- threat
- 2.Qf6#
- 2.Qf8#
- 1...Bxd5
- 2.Qf8#
- 1...Rf4!
- threat
- 1.Qe2?
- threat
- 2.Se4#
- 2.dxe5#
- 1...Qxd2
- 2.Qxe5#
- 2.dxe5#
- 1...Rxf4
- 2.dxe5#
- 1...Rxd5
- 2.Se4#
- 1...Bxf4
- 2.Se4#
- 1...Bxd5
- 2.dxe5#
- 1...Sxd2
- 2.dxe5#
- 1...exf4
- 2.Se4#
- 2.Re6#
- 2.Rd8#
- 1...Qa1
- 2.Se4#
- 2.Qxe5#
- 1...Qb1
- 2.Qxe5#
- 2.dxe5#
- 1...Rh5
- 2.Se4#
- 1...Sg3
- 2.Bxe5#
- 2.dxe5#
- 1...Qxe2!
- threat
- 1.Qg4?
- threat
- 2.Re6#
- 2.Rd8#
- 2.Qe6#
- 2.Qd7#
- 1...Bxd5
- 2.Rd8#
- 2.Qd7#
- 1...exf4
- 2.Rd8#
- 2.Qd7#
- 1...Bc6
- 2.Re6#
- 2.Qe6#
- 1...Rxg4!
- threat
- 1.Qe3?
- threat
- 2.Se4#
- 2.dxe5#
- 1...Qxd2
- 2.Qxe5#
- 2.dxe5#
- 1...Rxf4
- 2.dxe5#
- 1...Rxd5
- 2.Se4#
- 1...Bxf4
- 2.Se4#
- 1...Bxd5
- 2.dxe5#
- 1...Sxd2
- 2.dxe5#
- 1...exf4
- 2.Se4#
- 2.Re6#
- 2.Rd8#
- 1...Qa1
- 2.Se4#
- 2.Qxe5#
- 1...Qb1
- 2.Qxe5#
- 2.dxe5#
- 1...Rh5
- 2.Se4#
- 1...Sg3
- 2.Bxe5#
- 2.dxe5#
- 1...Qxe3!
- threat
- 1.Se3?
- Keys
- 1.Be3!
- threat
- 2.Qf6#
- 2.Qf8#
- 1...Bxd5
- 2.Qf8#
- 1...Rf4
- 2.dxe5#
- 1...Bf4
- 2.Se4#
- threat
- 1.Be3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- Q(a);N_GUARD,XS(A)::P(E),XP(g)
- Q(a);N_GUARD::S(A)
- Q(a);N_GUARD::P(E),XP(g)
- Q(a);N_GUARD::S(A),XQ(a)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(f);S_CUTB(m)::S(A)
- B(m);S_CUTR(f)::P(E),XP(g)
- Refutation
- P(k);XP(H)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(f);::S(G)
- B(m);::S(G)
- B(m);::R(J)
- Refutation
- P(k);XP(H)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- Q(a);XS(A)::P(E),XP(g)
- B(d);N_SPINP(g),XB(F)::S(A)
- B(m);XS(G)::P(E),XP(g)
- S(b);XS(A)::P(E),XP(g)
- P(g);N_SPINP(g),XB(F)::S(A)
- Q(a);::S(A)
- Q(a);::P(E),XP(g)
- R(e);::S(A)
- S(b);::P(E),XP(g)
- Refutation
- Q(a);XB(D)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(f);XB(D)::S(A)
- B(m);XS(G)::R1(I)
- S(b);XS(A)::R1(I)
- Q(a);::R1(I)
- B(m);::S(A)
- Refutation
- P(h);XB(D)
- Try
- B(F);XB(d)
- Threat
- DUALS(2)
- Vars
- B(m);XS(G)::QAB(B)
- Refutation
- R(e);N_SPINP(g)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- B(m);XS(G)::QAB(B)
- Refutation
- R(e);N_SPINP(g)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(e);N_SPINP(g),XB(F)::P(E),XP(g)
- R(f);XS(G)::S(A)
- B(d);N_SPINP(g),XB(F)::S(A)
- B(m);XS(G)::P(E),XP(g)
- S(b);XS(A)::P(E),XP(g)
- R(e);::S(A)
- Refutation
- Q(a);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(4)
- Refutation
- R(e);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(e);N_SPINP(g),XB(F)::P(E),XP(g)
- R(f);XS(G)::S(A)
- B(d);N_SPINP(g),XB(F)::S(A)
- B(m);XS(G)::P(E),XP(g)
- S(b);XS(A)::P(E),XP(g)
- R(e);::S(A)
- Refutation
- Q(a);XQ(B)
- Try
- Actual
- B(F);N_PINP(g)
- Threat
- DUALS(2)
- Vars
- B(m);XS(G)::QAB(B)
- R(e);S_CUTB(d)::P(E),XP(g)
- B(d);S_CUTR(e)::S(A)
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).