MESON Chess Problem Database
Problem Display
PID: 55417 (6B1/n3P3/1N2rP2/2B1k1K1/3p1RnR/Pr2P3/5P2/b1QbN3 w - - 0 1)
Hirschenson, Aaron
Retter, Yosef
4th Place, 07. WCCT, 2003-2004
#2
13 + 8
| 145 | StrateGems | 2004 |
| 721 | Variantim | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Sd3#
- 1...Rb2
- 2.Sd3#
- 2.exd4#
- 1...Rc3
- 2.exd4#
- 1...Rd3
- 2.Sxd3#
- 1...Rb4
- 2.Sd3#
- 1...Rb5
- 2.Sd3#
- 1...Rc6
- 2.Sc4#
- 2.Sd7#
- 1...Rd6
- 2.Sc4#
- 1...Rxf6
- 2.Sc4#
- 2.Sd7#
- 1...Rxe7
- 2.Sc4#
- 1...Bc3
- 2.Sd3#
- 1...Bc2
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- 1...Sxf2
- 2.Rf5#
- 1...Sh2
- 2.Re4#
- 2.Rf5#
- 1...Sxe3
- 2.Re4#
- 1...Sxf6
- 2.Rf5#
- 1...Sh6
- 2.Re4#
- 1...Rb1
- Tries
- 1.Bxd4+?
- 1...Kd6
- 2.Qc5#
- 1...Bxd4!
- 1...Kd6
- 1.Bd6+?
- 1...Rxd6
- 2.Sc4#
- 1...Kxd6!
- 1...Rxd6
- 1.Rxd4?
- threat
- 2.Sc4#
- 2.Sd7#
- 2.f4#
- 1...Rbxb6
- 2.Sd3#
- 2.f4#
- 1...Rexb6
- 2.f4#
- 1...Rxf6
- 2.Sc4#
- 2.Sd7#
- 1...Rxe7
- 2.Sc4#
- 2.Bd6#
- 2.f4#
- 1...Sxf2
- 2.Sc4#
- 2.Sd7#
- 2.Rd5#
- 1...Sxe3
- 2.Sd7#
- 2.Rde4#
- 2.Rhe4#
- 2.f4#
- 1...Sxf6
- 2.Sc4#
- 2.f4#
- 1...Rc3
- 2.Sd7#
- 2.f4#
- 1...Rb4
- 2.Sd3#
- 2.Sd7#
- 2.f4#
- 1...Rd6
- 2.Sc4#
- 2.Bxd6#
- 2.f4#
- 1...Be2
- 2.Sd7#
- 2.f4#
- 1...Bf3
- 2.Sxf3#
- 2.Sc4#
- 2.Sd7#
- 1...Bxd4!
- threat
- 1.Rhxg4?
- threat
- 2.Re4#
- 2.Rf5#
- 1...Rxe3
- 2.Rf5#
- 1...Rbxb6
- 2.Rf5#
- 1...Rxf6
- 2.Sc4#
- 2.Sd7#
- 2.Re4#
- 1...Bc2
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- 2.Rf5#
- 1...Bxg4!
- threat
- 1.Qb1?
- threat
- 2.Re4#
- 2.Rf5#
- 2.Qe4#
- 2.Qf5#
- 1...Rxb1
- 2.Sd3#
- 1...Rxe3
- 2.Rf5#
- 2.Qf5#
- 1...Rbxb6
- 2.Rf5#
- 2.Qe4#
- 2.Qf5#
- 1...Rxf6
- 2.Sc4#
- 2.Sd7#
- 2.Re4#
- 2.Qe4#
- 1...Sxf2
- 2.Rf5#
- 2.Qf5#
- 1...Sxe3
- 2.Re4#
- 2.Qe4#
- 1...Sxf6
- 2.Rf5#
- 2.Qf5#
- 1...Rd3
- 2.Sxd3#
- 1...Bc2
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- 2.Rf5#
- 2.Qf5#
- 1...Sh6
- 2.Re4#
- 2.Qe4#
- 1...d3!
- threat
- 1.Qc2?
- threat
- 2.Re4#
- 2.Rf5#
- 2.Qe4#
- 2.Qf5#
- 1...Rxe3
- 2.Rf5#
- 2.Qf5#
- 1...Rbxb6
- 2.Rf5#
- 2.Qe4#
- 2.Qf5#
- 1...Rxf6
- 2.Sc4#
- 2.Sd7#
- 2.Re4#
- 2.Qe4#
- 1...Bxc2
- 2.Sf3#
- 1...Sxf2
- 2.Rf5#
- 2.Qf5#
- 1...Sxe3
- 2.Re4#
- 2.Qe4#
- 1...Sxf6
- 2.Rf5#
- 2.Qf5#
- 1...Rd3
- 2.Sxd3#
- 1...Bf3
- 2.Sxf3#
- 2.Rf5#
- 2.Qf5#
- 1...Sh6
- 2.Re4#
- 2.Qe4#
- 1...d3!
- threat
- 1.Qc3?
- threat
- 2.Sd3#
- 2.exd4#
- 1...Rxc3
- 2.exd4#
- 1...Bxc3
- 2.Sd3#
- 1...Sxf2
- 2.Rf5#
- 2.exd4#
- 1...Sxe3
- 2.Sd3#
- 2.Re4#
- 1...dxc3
- 2.Sd3#
- 1...Rb4
- 2.Sd3#
- 1...Rd6
- 2.Sd3#
- 2.Sc4#
- 1...Bc2
- 2.Sf3#
- 2.exd4#
- 1...Be2
- 2.exd4#
- 1...Sb5
- 2.Sd3#
- 1...Sc6
- 2.Sd3#
- 1...Rbxb6!
- threat
- 1.Qc4?
- threat
- 2.Sd7#
- 2.Qd5#
- 2.Qxe6#
- 1...Rbxb6
- 2.Sd3#
- 1...Rexb6
- 2.Qd5#
- 1...Rxf6
- 2.Sd7#
- 2.Qd5#
- 1...Rxe7
- 2.Qd5#
- 1...Sxe3
- 2.Sd7#
- 2.Re4#
- 2.Qxe6#
- 1...Sxf6
- 2.Rf5#
- 2.Qxe6#
- 1...Rc6
- 2.Sd7#
- 2.Qd5#
- 1...Bf3
- 2.Sxf3#
- 2.Sd7#
- 2.Qxe6#
- 1...Rd6!
- threat
- 1.f3?
- threat
- 2.Re4#
- 2.Rf5#
- 1...Rxe3
- 2.Rf5#
- 1...Rbxb6
- 2.Rf5#
- 1...Rxf6
- 2.Sc4#
- 2.Sd7#
- 2.Re4#
- 1...Bxf3
- 2.Sxf3#
- 1...Sxe3
- 2.Re4#
- 1...Sxf6
- 2.Rf5#
- 1...Sf2
- 2.Rf5#
- 1...Sh6
- 2.Re4#
- 1...Bc2!
- threat
- 1.e4?
- threat
- 2.Sc4#
- 2.Sd7#
- 1...Rbxb6
- 2.Sd3#
- 1...Rxe7
- 2.Sc4#
- 1...Sxf6
- 2.Sc4#
- 2.Rf5#
- 1...Rc3
- 2.Sd7#
- 1...Rb4
- 2.Sd3#
- 2.Sd7#
- 1...Rd6
- 2.Sc4#
- 1...Be2
- 2.Sd7#
- 1...Se3
- 2.Sd7#
- 1...Rexb6!
- threat
- 1.e8Q?
- threat
- 2.Qxe6#
- 1...Rxe8
- 2.Sc4#
- 2.Sd7#
- 1...Re7
- 2.Sc4#
- 2.Sd7#
- 2.Qxe7#
- 1...Rxb6!
- threat
- 1.e8R?
- threat
- 2.Rxe6#
- 1...Rxe8
- 2.Sc4#
- 2.Sd7#
- 1...Re7
- 2.Sc4#
- 2.Sd7#
- 2.Rxe7#
- 1...Rxb6!
- threat
- 1.Bxd4+?
- Keys
- 1.Bb4!
- threat
- 2.Qc5#
- 1...Sxe3
- 2.Re4#
- 1...Sxf6
- 2.Rf5#
- 1...Rc3
- 2.exd4#
- 1...Rc6
- 2.Sd7#
- 1...Rd6
- 2.Sc4#
- 1...Bc3
- 2.Sd3#
- 1...Bc2
- 2.Sf3#
- 1...Bf3
- 2.Sxf3#
- threat
- 1.Bb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(c);N_GUARD::S(B)
- R(c);S_CUTB(a)::P(E),XP(d)
- R(c);N_GUARD::S(B),XR(c)
- R(g);::S(J)
- R(g);XP(L)::S(J)
- B(a);S_CUTR(c)::S(B)
- B(b);N_GUARD::S(B)
- B(b);N_GUARD::S(B),XB(b)
- S(e);XP(C)::R1(F)
- S(e);XP(E)::R1(F)
- S(e);XP(K)::R1(F)
- S(e);::R1(F)
- Tries
- Try
- B(H);CHECK,XP(d)
- Vars
- K(f);S_FLIGHT::QAB1(A)
- Refutation
- B(a);XB(H)
- Try
- B(H);CHECK
- Vars
- R(g);XB(H)::S(J)
- Refutation
- K(f);S_FLIGHT,XB(H)
- Try
- R(F);XP(d)
- Threat
- DUALS(3)
- Vars
- R(g);XS(J)::P(C)
- Refutation
- B(a);XR(F)
- Try
- R(G);XS(e)
- Threat
- DUALS(2)
- Vars
- R(c);XP(E)::R1(F)
- R(c);XS(J)::R1(F)
- B(b);N_GUARD::S(B)
- Refutation
- B(b);XR(G)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(c);N_GUARD,XQ(A)::S(B)
- R(c);N_GUARD::S(B),XR(c)
- B(b);N_GUARD::S(B)
- Refutation
- P(d);
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- B(b);N_GUARD,XQ(A)::S(B)
- R(c);N_GUARD::S(B),XR(c)
- Refutation
- P(d);
- Try
- Q(A);P_PINP(d)
- Threat
- DUALS(2)
- Vars
- R(c);N_SPINP(d),XQ(A)::P(E),XP(d)
- B(a);N_SPINP(d),XQ(A)::S(B)
- P(d);N_SPINP(d),XQ(A)::S(B)
- R(c);::S(B)
- B(b);::P(E),XP(d)
- S(h);::S(B)
- Refutation
- R(c);XS(J)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(c);N_GUARD,XS(J)::S(B)
- R(g);XS(J)::QAR1(A)
- R(g);XP(L)::QAR1(A)
- Refutation
- R(g);
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- R(c);XP(E)::R1(F)
- R(c);XS(J)::R1(F)
- B(b);XP(C)::S(B),XB(b)
- S(e);XP(E)::R1(F)
- S(e);XP(K)::R1(F)
- S(e);::R1(F)
- Refutation
- B(b);
- Try
- P(E);
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,XS(J)::S(B)
- R(g);XP(L)::S(J)
- R(c);::S(J)
- R(g);::S(J)
- B(b);::S(J)
- S(e);::S(J)
- Refutation
- R(g);XS(J)
- Try
- P(L);P_PINR(g)
- Threat
- QAR1(L),XR(g)
- Refutation
- R(c);XS(J)
- Try
- P(L);P_PINR(g)
- Threat
- R1(L),XR(g)
- Refutation
- R(c);XS(J)
- Try
- Actual
- B(H);
- Threat
- QAR2(A)
- Vars
- S(e);XP(E)::R1(F)
- S(e);XP(K)::R1(F)
- R(c);S_CUTB(a)::P(E),XP(d)
- R(g);::S(J)
- B(a);S_CUTR(c)::S(B)
- B(b);N_GUARD::S(B)
- B(b);N_GUARD::S(B),XB(b)
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).