MESON Chess Problem Database
Problem Display
PID: 244332 (8/8/8/3p1p2/2r3r1/4BRp1/1QPpk1K1/3N1R1N w - - 0 1)
Arbachev, D
Shakhmatnaya kompozitsiya, 1993
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sxc3#
- 1...Ra4
- 2.Sc3#
- 1...Rb4
- 2.Sc3#
- 1...Rcd4
- 2.Sc3#
- 1...Rce4
- 2.Sc3#
- 1...Rcf4
- 2.Sc3#
- 1...Rgd4
- 2.Sxg3#
- 1...Rge4
- 2.Sxg3#
- 1...Rgf4
- 2.Sxg3#
- 1...Rh4
- 2.Sxg3#
- 1...Rc3
- Tries
- 1.Bd4?
- threat
- 2.Re3#
- 1...Rc3
- 2.Sxc3#
- 1...Re4
- 2.Sxg3#
- 1...f4!
- threat
- 1.Bf4?
- threat
- 2.Re3#
- 1...Rc3
- 2.Sxc3#
- 1...Re4
- 2.Sc3#
- 1...d4!
- threat
- 1.Qa3?
- threat
- 2.Qd3#
- 1...Rc3
- 2.Sxc3#
- 1...Rcd4
- 2.Sc3#
- 1...Rgd4
- 2.Sxg3#
- 1...Rxc2!
- threat
- 1.Qc3?
- threat
- 2.Qxd2#
- 2.Qd3#
- 1...Rxc3
- 2.Sxc3#
- 1...Rgd4
- 2.Sxg3#
- 1...Rcd4!
- threat
- 1.Qd4?
- threat
- 2.Qxd2#
- 2.Qd3#
- 1...Rcxd4
- 2.Sc3#
- 1...Rgxd4
- 2.Sxg3#
- 1...Rc3
- 2.Sxc3#
- 2.Qxd2#
- 1...Rxc2!
- threat
- 1.Qb3?
- threat
- 2.Qd3#
- 1...Rc3
- 2.Sxc3#
- 1...Rcd4
- 2.Sc3#
- 1...Rgd4
- 2.Sxg3#
- 1...Rxc2!
- threat
- 1.Qb4?
- threat
- 2.Qxd2#
- 1...Rxb4
- 2.Sc3#
- 1...Rc3
- 2.Sxc3#
- 1...Rcd4
- 2.Sc3#
- 1...Rgd4
- 2.Sxg3#
- 1...Rxc2!
- threat
- 1.Bd4?
- Keys
- 1.Qe5!
- 1...Rxc2
- 2.Bf4#
- 1...d4
- 2.Bf4#
- 1...Rc3
- 2.Sxc3#
- 1...Ra4
- 2.Sc3#
- 1...Rb4
- 2.Sc3#
- 1...Rcd4
- 2.Sc3#
- 1...Rce4
- 2.Sc3#
- 1...Rcf4
- 2.Sc3#
- 2.Bxf4#
- 1...Rc5
- 2.Bf4#
- 1...Rc6
- 2.Bf4#
- 1...Rc7
- 2.Bf4#
- 1...Rc8
- 2.Bf4#
- 1...Rgd4
- 2.Sxg3#
- 2.Bxd4#
- 1...Rge4
- 2.Sxg3#
- 1...Rgf4
- 2.Sxg3#
- 1...Rh4
- 2.Sxg3#
- 1...Rg5
- 2.Bd4#
- 1...Rg6
- 2.Bd4#
- 1...Rg7
- 2.Bd4#
- 1...Rg8
- 2.Bd4#
- 1...f4
- 2.Bd4#
- 1...Rxc2
- 1.Qe5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 2
- Sets
- R(d);N_GUARD::S(A),XR(d)
- R(d);N_GUARD::S(A)
- R(e);N_GUARD::S(C),XP(c)
- Tries
- Try
- B(G);
- Threat
- R1(H)
- Vars
- R(d);N_GUARD::S(A),XR(d)
- R(e);N_GUARD::S(C),XP(c)
- Refutation
- P(g);
- Try
- B(G);
- Threat
- R1(H)
- Vars
- R(d);N_GUARD::S(A),XR(d)
- R(d);N_GUARD::S(A)
- Refutation
- P(f);
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- R(d);N_GUARD::S(A),XR(d)
- R(d);N_GUARD::S(A)
- R(e);N_GUARD::S(C),XP(c)
- Refutation
- R(d);XP(E)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(d);XQ(D)::S(A),XR(d)
- R(e);N_GUARD::S(C),XP(c)
- Refutation
- R(d);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,XQ(D)::S(A)
- R(e);N_GUARD,XQ(D)::S(C),XP(c)
- Refutation
- R(d);XP(E)
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- R(d);N_GUARD::S(A),XR(d)
- R(d);N_GUARD::S(A)
- R(e);N_GUARD::S(C),XP(c)
- Refutation
- R(d);XP(E)
- Try
- Q(D);
- Threat
- QAR1(D),XP(a)
- Vars
- R(d);N_GUARD,XQ(D)::S(A)
- R(d);N_GUARD::S(A),XR(d)
- R(d);N_GUARD::S(A)
- R(e);N_GUARD::S(C),XP(c)
- Refutation
- R(d);XP(E)
- Try
- Actual
- Q(D);
- Vars
- R(d);N_GUARD,XP(E)::QAR(D)+B(G)
- P(f);S_CUTR(d)::QAR(D)+B(G)
- R(d);N_GUARD::S(A),XR(d)
- R(d);N_GUARD::S(A)
- R(d);N_GUARD::QAR(D)+B(G)
- R(e);N_GUARD::S(C),XP(c)
- R(e);N_GUARD::QAR(D)+B(G)
- P(g);S_CUTR(e)::QAR(D)+B(G)
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).