MESON Chess Problem Database
Problem Display
PID: 261268 (K2RB2n/1pP5/br2k3/4N1B1/1n1P2P1/4N3/4R3/2r4q w - - 0 1)
Ruszczynski, Piotr
Neue Zurcher Zeitung, 1981
#2
10 + 8
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.c8Q#
- 2.c8B#
- 1...Rb1
- 2.c8Q#
- 2.c8B#
- 1...Rd1
- 2.c8Q#
- 2.c8B#
- 1...Re1
- 2.c8Q#
- 2.c8B#
- 1...Rf1
- 2.c8Q#
- 2.c8B#
- 1...Rg1
- 2.c8Q#
- 2.c8B#
- 1...Bc4
- 2.c8Q#
- 2.c8B#
- 1...Sc2
- 2.c8Q#
- 2.c8B#
- 1...Sc6
- 2.c8Q#
- 2.c8B#
- 1...Sg6
- 2.Bf7#
- 1...Sf7
- 2.Bxf7#
- 1...Ra1
- Tries
- 1.S3c4?
- threat
- 2.Sf3#
- 2.c8Q#
- 2.c8B#
- 1...Rxc4
- 2.Sf3#
- 1...Bxc4
- 2.c8Q#
- 2.c8B#
- 1...Rd6
- 2.Rxd6#
- 1...Qg2
- 2.c8Q#
- 2.c8B#
- 1...Qf3
- 2.Sxf3#
- 2.c8Q#
- 2.c8B#
- 1...Qe4
- 2.c8Q#
- 2.c8B#
- 1...Qc6
- 2.Sxc6#
- 1...Qd1
- 2.c8Q#
- 2.c8B#
- 1...Qe1
- 2.c8Q#
- 2.c8B#
- 1...Qf1
- 2.c8Q#
- 2.c8B#
- 1...Qg1
- 2.c8Q#
- 2.c8B#
- 1...Qh2
- 2.c8Q#
- 2.c8B#
- 1...Qh3
- 2.Sf3#
- 2.c8Q#
- 2.c8B#
- 1...Qh4
- 2.Sd3#
- 2.Sf3#
- 2.Sc6#
- 2.Sg6#
- 2.Sf7#
- 2.c8Q#
- 2.c8B#
- 1...Qh5
- 2.Sd3#
- 2.Sf3#
- 2.Sc6#
- 2.Sg6#
- 2.Sf7#
- 2.c8Q#
- 2.c8B#
- 1...Qh6
- 2.Sd3#
- 2.Sf3#
- 2.Sc6#
- 2.Sg6#
- 2.Sf7#
- 2.c8Q#
- 2.c8B#
- 1...Qh7
- 2.Sg6#
- 1...Ra1
- 2.Sf3#
- 2.c8Q#
- 2.c8B#
- 1...Rb1
- 2.Sf3#
- 2.c8Q#
- 2.c8B#
- 1...Rd1
- 2.Sf3#
- 2.c8Q#
- 2.c8B#
- 1...Re1
- 2.c8Q#
- 2.c8B#
- 1...Rf1
- 2.Sf3#
- 2.c8Q#
- 2.c8B#
- 1...Rg1
- 2.Sf3#
- 2.c8Q#
- 2.c8B#
- 1...Rc2
- 2.c8Q#
- 2.c8B#
- 1...Rc3
- 2.c8Q#
- 2.c8B#
- 1...Rb5
- 2.Rd6#
- 2.c8Q#
- 2.c8B#
- 1...Rc6
- 2.Sf3#
- 1...Bb5
- 2.Sf3#
- 1...Sa2
- 2.Sf3#
- 2.c8Q#
- 2.c8B#
- 1...Sc2
- 2.c8Q#
- 2.c8B#
- 1...Sd3
- 2.c8Q#
- 2.c8B#
- 1...Sd5
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- 1...Sc6
- 2.Rd6#
- 2.c8Q#
- 2.c8B#
- 1...Sg6
- 2.Bf7#
- 2.c8Q#
- 2.c8B#
- 1...Sf7
- 2.Bxf7#
- 2.c8Q#
- 2.c8B#
- 1...Qd5!
- threat
- 1.Sf5?
- threat
- 2.Sg7#
- 1...Rd6
- 2.Rxd6#
- 1...Qh6
- 2.Sd3#
- 2.Sc4#
- 1...Qh7
- 2.Sd3#
- 2.Sc4#
- 1...Rxc7!
- threat
- 1.S3c4?
- Keys
- 1.S5c4!
- threat
- 2.Sg2#
- 2.c8Q#
- 2.c8B#
- 1...Rxc4
- 2.Sg2#
- 1...Bxc4
- 2.c8Q#
- 2.c8B#
- 1...Qg2
- 2.Sxg2#
- 2.c8Q#
- 2.c8B#
- 1...Qf3
- 2.c8Q#
- 2.c8B#
- 1...Qe4
- 2.c8Q#
- 2.c8B#
- 1...Qd5
- 2.Sxd5#
- 1...Qc6
- 2.Sd5#
- 1...Qd1
- 2.Sxd1#
- 2.c8Q#
- 2.c8B#
- 1...Qe1
- 2.c8Q#
- 2.c8B#
- 1...Qf1
- 2.Sxf1#
- 2.c8Q#
- 2.c8B#
- 1...Qg1
- 2.c8Q#
- 2.c8B#
- 1...Qh2
- 2.c8Q#
- 2.c8B#
- 1...Qh3
- 2.c8Q#
- 2.c8B#
- 1...Qh4
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sd5#
- 2.Sf5#
- 2.c8Q#
- 2.c8B#
- 1...Qh5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sd5#
- 2.Sf5#
- 2.c8Q#
- 2.c8B#
- 1...Qh6
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sd5#
- 2.Sf5#
- 2.c8Q#
- 2.c8B#
- 1...Qh7
- 2.Sf5#
- 1...Ra1
- 2.Sg2#
- 2.c8Q#
- 2.c8B#
- 1...Rb1
- 2.Sg2#
- 2.c8Q#
- 2.c8B#
- 1...Rd1
- 2.Sg2#
- 2.c8Q#
- 2.c8B#
- 1...Re1
- 2.c8Q#
- 2.c8B#
- 1...Rf1
- 2.Sg2#
- 2.c8Q#
- 2.c8B#
- 1...Rg1
- 2.Sg2#
- 2.c8Q#
- 2.c8B#
- 1...Rc2
- 2.c8Q#
- 2.c8B#
- 1...Rc3
- 2.c8Q#
- 2.c8B#
- 1...Rb5
- 2.Rd6#
- 2.c8Q#
- 2.c8B#
- 1...Rc6
- 2.Sg2#
- 1...Rd6
- 2.Rxd6#
- 1...Bb5
- 2.Sg2#
- 1...Sa2
- 2.Sg2#
- 2.c8Q#
- 2.c8B#
- 1...Sc2
- 2.c8Q#
- 2.c8B#
- 1...Sd3
- 2.c8Q#
- 2.c8B#
- 1...Sd5
- 2.c8Q#
- 2.c8B#
- 1...Sc6
- 2.Rd6#
- 2.c8Q#
- 2.c8B#
- 1...Sg6
- 2.c8Q#
- 2.c8B#
- 1...Sf7
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- threat
- 1.S5c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 2
- Sets
- R(a);N_GUARD::P=Q
- B(d);S_CUTR(a)::P=Q
- S(c);S_CUTR(a)::P=Q
- S(h);N_GUARD::B(J)
- S(h);N_GUARD::B(J),XS(h)
- Tries
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- R(a);XS(B)::R(A)+S(E)
- B(d);XS(B)::P=Q
- R(e);N_GUARD::R1(I),XR(e)
- Q(b);::P=Q
- Q(b);N_GUARD::R(A)+S(E),XQ(b)
- Q(b);N_GUARD::R(A)+S(E)
- R(a);::P=Q
- R(e);::R(A)+S(E)
- B(d);::R(A)+S(E)
- S(c);::P=Q
- Refutation
- Q(b);
- Try
- S(B);
- Threat
- S(B)
- Vars
- R(e);N_GUARD::R1(I),XR(e)
- Refutation
- R(a);XP(G)
- Try
- Actual
- S(E);
- Threat
- DUALS(3)
- Vars
- R(a);XS(E)::R(A)+S(B)
- B(d);XS(E)::P=Q
- Q(b);::P=Q
- Q(b);N_GUARD::R(A)+S(B),XQ(b)
- Q(b);N_GUARD::R(A)+S(B)
- R(a);::P=Q
- R(e);::R(A)+S(B)
- R(e);N_GUARD::R1(I),XR(e)
- B(d);::R(A)+S(B)
- S(c);::P=Q
- S(h);::P=Q
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).