MESON Chess Problem Database
Problem Display
PID: 186334 (3b1Q1q/p3r2b/2N2n2/1R6/N3k2r/KR5p/8/2BBn3 w - - 0 1)
Visbeen, Frank
The Problemist, 1984
#2
8 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Re3#
- 1...Re5
- 2.Rxe5#
- 1...Re6
- 2.Qb4#
- 1...Rb7
- 2.Re5#
- 2.Qb4#
- 1...Rc7
- 2.Re5#
- 2.Qb4#
- 1...Rd7
- 2.Re5#
- 1...Rf7
- 2.Re5#
- 2.Qb4#
- 1...Rg7
- 2.Re5#
- 2.Qb4#
- 1...Re8
- 2.Qb4#
- 1...Ba5
- 2.Qxe7#
- 1...Bb6
- 2.Qxe7#
- 1...Sc2+
- 2.Bxc2#
- 1...Sg2
- 2.Bc2#
- 2.Bf3#
- 1...Sd3
- 2.Sc3#
- 1...Sf3
- 2.Bc2#
- 2.Bxf3#
- 1...Sg4
- 2.Qf4#
- 1...Sd5
- 2.Sc5#
- 1...Sh5
- 2.Re3#
- 1...Sd7
- 2.Re3#
- 1...Se8
- 2.Re3#
- 1...Sg8
- 2.Re3#
- 1...Rf4
- Tries
- 1.Bg5?
- threat
- 2.Re3#
- 1...Sc2+
- 2.Bxc2#
- 1...Re5
- 2.Rxe5#
- 1...Bb6
- 2.Qxe7#
- 1...Sg2
- 2.Bc2#
- 2.Bf3#
- 1...Sd3
- 2.Sc3#
- 1...Sg4
- 2.Qf4#
- 1...Sd5
- 2.Sc5#
- 1...Rf4!
- threat
- 1.Be2?
- threat
- 2.Sc3#
- 2.R3b4#
- 1...Re5
- 2.Rxe5#
- 1...Qg8
- 2.Sc3#
- 1...Rd7
- 2.Sc3#
- 2.Re5#
- 1...Bg8
- 2.Sc3#
- 1...Ba5
- 2.Qxe7#
- 1...Bb6
- 2.Sc3#
- 2.Qxe7#
- 1...Sd3
- 2.Sc3#
- 1...Sf3
- 2.Sc3#
- 2.Bd3#
- 2.Bxf3#
- 1...Sg4
- 2.Qf4#
- 1...Sd5
- 2.Sc5#
- 1...Sh5
- 2.Re3#
- 1...Sd7
- 2.Re3#
- 1...Se8
- 2.Re3#
- 1...Sg8
- 2.Re3#
- 1...a5
- 2.Sc3#
- 1...Sc2+!
- threat
- 1.Rf3?
- threat
- 2.Sc3#
- 1...Sxf3
- 2.Bc2#
- 1...Ba5
- 2.Qxe7#
- 1...Sg4
- 2.Qf4#
- 1...Sd5
- 2.Sc5#
- 1...Sh5
- 2.Re3#
- 1...Sd7
- 2.Re3#
- 1...Se8
- 2.Re3#
- 1...Sg8
- 2.Re3#
- 1...Sc2+!
- threat
- 1.Rxh3?
- threat
- 2.Sc3#
- 1...Sc2+
- 2.Bxc2#
- 1...Re5
- 2.Rxe5#
- 1...Sf3
- 2.Bc2#
- 1...Ba5
- 2.Qxe7#
- 1...Sg4
- 2.Qf4#
- 1...Sd5
- 2.Sc5#
- 1...Sh5
- 2.Re3#
- 1...Sd7
- 2.Re3#
- 1...Se8
- 2.Re3#
- 1...Sg8
- 2.Re3#
- 1...Rxh3+!
- threat
- 1.Rg5?
- threat
- 2.Sc5#
- 1...Sc2+
- 2.Bxc2#
- 1...Re5
- 2.Rxe5#
- 1...Bb6
- 2.Qxe7#
- 1...Sd3
- 2.Sc3#
- 1...Sd7
- 2.Re3#
- 1...Bf5!
- threat
- 1.Qxf6?
- threat
- 2.Re3#
- 2.Qxh4#
- 1...Sc2+
- 2.Bxc2#
- 1...Qg7
- 2.Re3#
- 1...Qf8
- 2.Re3#
- 2.Qd4#
- 1...Qg8
- 2.Re3#
- 2.Qd4#
- 1...Rf4
- 2.Re3#
- 2.Qxf4#
- 1...Rg4
- 2.Re3#
- 1...Rh5
- 2.Re3#
- 2.Qf4#
- 1...Rh6
- 2.Re3#
- 2.Qf4#
- 1...Re5
- 2.Re3#
- 2.Rxe5#
- 1...Re6
- 2.Re3#
- 1...Rb7
- 2.Re3#
- 2.Re5#
- 1...Rc7
- 2.Re3#
- 2.Re5#
- 1...Rd7
- 2.Re3#
- 2.Re5#
- 1...Rf7
- 2.Re3#
- 2.Re5#
- 1...Rg7
- 2.Re3#
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 2.Qe6#
- 1...Re8
- 2.Re3#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Re3#
- 2.Qxg6#
- 1...Bg8
- 2.Re3#
- 2.Qf5#
- 2.Qg6#
- 1...Bb6
- 2.Qxh4#
- 1...Bc7
- 2.Re3#
- 1...Sg2
- 2.Bc2#
- 2.Bf3#
- 2.Qf3#
- 1...Sd3
- 2.Sc3#
- 2.Bf3#
- 2.Qf3#
- 1...Sf3
- 2.Bc2#
- 2.Bxf3#
- 2.Re3#
- 2.Qxf3#
- 1...Qxf6!
- threat
- 1.Qf7?
- threat
- 2.Qc4#
- 1...Sc2+
- 2.Bxc2#
- 1...Rxf7
- 2.Re5#
- 1...Re5
- 2.Rxe5#
- 1...Re6
- 2.Qxe6#
- 1...Rd7
- 2.Re5#
- 2.Qe6#
- 1...Bg8
- 2.Qg6#
- 1...Bb6
- 2.Qxe7#
- 1...Sf3
- 2.Bc2#
- 2.Bxf3#
- 1...Sg4
- 2.Sc5#
- 2.Qd5#
- 2.Qf4#
- 1...Sd5
- 2.Sc5#
- 2.Qxd5#
- 1...Sh5
- 2.Sc5#
- 2.Re3#
- 2.Qd5#
- 1...Sd7
- 2.Re3#
- 2.Qd5#
- 1...Se8
- 2.Sc5#
- 2.Re3#
- 2.Qd5#
- 1...Sg8
- 2.Sc5#
- 2.Re3#
- 2.Qd5#
- 1...Qg8!
- threat
- 1.Bg5?
- Keys
- 1.Rg3!
- threat
- 2.Sc3#
- 1...Sc2+
- 2.Bxc2#
- 1...Re5
- 2.Rxe5#
- 1...Sf3
- 2.Bc2#
- 1...Ba5
- 2.Qxe7#
- 1...Sg4
- 2.Qf4#
- 1...Sd5
- 2.Sc5#
- 1...Sh5
- 2.Re3#
- 1...Sd7
- 2.Re3#
- 1...Se8
- 2.Re3#
- 1...Sg8
- 2.Re3#
- threat
- 1.Rg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(d);SBLOCK::R1(D)
- R(g);N_GUARD::R1(F),XR(g)
- R(g);OGATE::QAR(H)
- R(g);N_GUARD::R1(F)
- B(i);N_GUARD::QAR(H),XR(g)
- S(a);CHECK,N_GUARD::B(B),XS(a)
- S(a);SBLOCK::S(E)
- S(e);OGATE::QAR1(H)
- S(e);SBLOCK::S(E)
- S(e);::R1(D)
- Tries
- Try
- B(A);
- Threat
- R1(D)
- Vars
- S(a);CHECK,N_GUARD::B(B),XS(a)
- R(g);N_GUARD::R1(F),XR(g)
- B(i);N_GUARD::QAR(H),XR(g)
- S(a);SBLOCK::S(E)
- S(e);OGATE::QAR1(H)
- S(e);SBLOCK::S(E)
- Refutation
- R(d);
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- R(g);N_GUARD::R1(F),XR(g)
- Q(j);::S(E)
- B(h);::S(E)
- B(i);N_GUARD::QAR(H),XR(g)
- S(a);::S(E)
- S(e);OGATE::QAR1(H)
- S(e);SBLOCK::S(E)
- S(e);::R1(D)
- P(f);::S(E)
- Refutation
- S(a);CHECK
- Try
- R(D);
- Threat
- S(E)
- Vars
- S(a);N_GUARD,SBLOCK,XR(D)::B(B)
- B(i);N_GUARD::QAR(H),XR(g)
- S(e);OGATE::QAR1(H)
- S(e);SBLOCK::S(E)
- S(e);::R1(D)
- Refutation
- S(a);CHECK
- Try
- R(D);XP(b)
- Threat
- S(E)
- Vars
- S(a);CHECK,N_GUARD::B(B),XS(a)
- R(g);N_GUARD::R1(F),XR(g)
- S(a);N_GUARD::B(B)
- B(i);N_GUARD::QAR(H),XR(g)
- S(e);OGATE::QAR1(H)
- S(e);SBLOCK::S(E)
- S(e);::R1(D)
- Refutation
- R(d);CHECK,XR(D)
- Try
- R(F);
- Threat
- S(E)
- Vars
- S(a);CHECK,N_GUARD::B(B),XS(a)
- R(g);N_GUARD::R1(F),XR(g)
- B(i);N_GUARD::QAR(H),XR(g)
- S(a);SBLOCK::S(E)
- S(e);::R1(D)
- Refutation
- B(h);
- Try
- Q(H);XS(e)
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::B(B),XS(a)
- Q(j);::R1(D)
- R(d);::R1(D)
- R(g);::R1(D)
- B(h);N_GUARD::QAB1(H),XB(h)
- B(i);::QAR(H),XR(d)
- B(i);::R1(D)
- Refutation
- Q(j);XQ(H)
- Try
- Q(H);
- Threat
- QAR2(H)
- Vars
- S(a);CHECK,N_GUARD::B(B),XS(a)
- R(g);N_GUARD,XQ(H)::R1(F)
- R(g);N_GUARD::R1(F),XR(g)
- R(g);N_GUARD::QAR2(H),XR(g)
- B(h);N_GUARD::QAB(H)
- B(i);N_GUARD::QAR(H),XR(g)
- Refutation
- Q(j);
- Try
- Actual
- R(D);
- Threat
- S(E)
- Vars
- S(a);CHECK,N_GUARD::B(B),XS(a)
- R(g);N_GUARD::R1(F),XR(g)
- S(a);N_GUARD::B(B)
- B(i);N_GUARD::QAR(H),XR(g)
- S(e);OGATE::QAR1(H)
- S(e);SBLOCK::S(E)
- S(e);::R1(D)
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).