MESON Chess Problem Database
Problem Display
PID: 157657 (8/p7/4Q1bb/1P1r3p/KBpkN3/NR3B2/1PP5/7q w - - 0 1)
Dikusarov, Andrey Nikolayovich
Sachove umeni (Ceskoslovensky sach), 1960
#2
10 + 8
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Rxb5
- 2.Sxb5#
- 1...Rc5
- 2.Bxc5#
- 1...Re5
- 2.Qxc4#
- 1...Rd6
- 2.Bc5#
- 2.Qxd6#
- 1...Rd7
- 2.Bc5#
- 1...Rd8
- 2.Bc5#
- 1...Bxe4
- 2.Qxe4#
- 1...Be3
- 2.Bc3#
- 1...Rxb5
- Tries
- 1.Sf2?
- threat
- 2.Qxd5#
- 2.c3#
- 1...Rxb5
- 2.Sxb5#
- 2.c3#
- 1...Bxc2
- 2.Sxc2#
- 2.Qxd5#
- 1...cxb3
- 2.c3#
- 1...Qc1
- 2.Qxd5#
- 1...Qe1
- 2.Qxd5#
- 1...Rc5
- 2.Bc3#
- 2.c3#
- 1...Re5
- 2.Qxc4#
- 1...Rf5
- 2.Qe4#
- 2.c3#
- 1...Rg5
- 2.Qe3#
- 2.c3#
- 1...Rd6
- 2.Qxd6#
- 2.c3#
- 1...Rd7
- 2.Qf6#
- 2.c3#
- 1...Rd8
- 2.Qf6#
- 2.c3#
- 1...Bd3
- 2.c3#
- 1...Be4
- 2.Qxe4#
- 1...Bf7
- 2.Qe4#
- 2.c3#
- 1...Bd2
- 2.Qxd5#
- 1...c3
- 2.bxc3#
- 1...Qxf3!
- threat
- 1.Sg3?
- threat
- 2.Se2#
- 2.Qxd5#
- 1...Rxb5
- 2.Sxb5#
- 2.Se2#
- 1...cxb3
- 2.Se2#
- 1...Qg2
- 2.Qxd5#
- 1...Qd1
- 2.Qxd5#
- 1...Qe1
- 2.Qxd5#
- 1...Qf1
- 2.Qxd5#
- 1...Qh2
- 2.Qxd5#
- 1...Rc5
- 2.Se2#
- 2.Bc3#
- 1...Re5
- 2.Qxc4#
- 1...Rf5
- 2.Se2#
- 2.Qe4#
- 1...Rg5
- 2.Se2#
- 2.Qe3#
- 1...Rd6
- 2.Se2#
- 2.Qxd6#
- 1...Rd7
- 2.Se2#
- 2.Qf6#
- 1...Rd8
- 2.Se2#
- 2.Qf6#
- 1...Bd3
- 2.c3#
- 1...Be4
- 2.Se2#
- 2.Qxe4#
- 1...Bf7
- 2.Se2#
- 2.Qe4#
- 1...c3
- 2.Se2#
- 2.bxc3#
- 1...Qxf3!
- threat
- 1.Sc5?
- threat
- 2.Qxd5#
- 2.c3#
- 1...Rxc5
- 2.Bc3#
- 1...Bxc2
- 2.Sxc2#
- 2.Qxd5#
- 1...cxb3
- 2.Sxb3#
- 2.c3#
- 1...Qc1
- 2.Qxd5#
- 1...Qe1
- 2.Qxd5#
- 1...Re5
- 2.Qxc4#
- 1...Rf5
- 2.Qe4#
- 2.c3#
- 1...Rg5
- 2.Qe3#
- 2.c3#
- 1...Rd6
- 2.Qxd6#
- 2.c3#
- 1...Rd7
- 2.Qf6#
- 2.c3#
- 1...Rd8
- 2.Qf6#
- 2.c3#
- 1...Bd3
- 2.c3#
- 1...Be4
- 2.Qxe4#
- 1...Bf7
- 2.Qe4#
- 2.c3#
- 1...Bd2
- 2.Qxd5#
- 1...c3
- 2.bxc3#
- 1...Qxf3!
- threat
- 1.Sg5?
- threat
- 2.Qxd5#
- 2.Qe3#
- 1...Qxf3
- 2.Sxf3#
- 1...Rxb5
- 2.Sxb5#
- 2.Qe3#
- 1...Rxg5
- 2.Qe3#
- 1...Bxg5
- 2.Qxd5#
- 1...Qc1
- 2.Qxd5#
- 1...Qe1
- 2.Qxd5#
- 1...Qg1
- 2.Qxd5#
- 1...Rc5
- 2.Bc3#
- 2.Qe3#
- 1...Re5
- 2.Qxc4#
- 1...Rf5
- 2.Qe3#
- 2.Qe4#
- 1...Rd6
- 2.Qe3#
- 2.Qxd6#
- 1...Rd7
- 2.Qe3#
- 2.Qf6#
- 1...Rd8
- 2.Qe3#
- 2.Qf6#
- 1...Bd3
- 2.c3#
- 1...Be4
- 2.Qxe4#
- 1...Bf7
- 2.Qe3#
- 2.Qe4#
- 1...c3
- 2.bxc3#
- 1...cxb3!
- threat
- 1.Qb6+?
- 1...Ke5
- 2.Qf6#
- 1...Rc5
- 2.Qxc5#
- 1...axb6!
- 1...Ke5
- 1.Sf2?
- Keys
- 1.Sd2!
- threat
- 2.Qxd5#
- 1...Qxf3
- 2.Sxf3#
- 1...Rxb5
- 2.Sxb5#
- 1...cxb3
- 2.Sxb3#
- 1...Rc5
- 2.Bc3#
- 1...Re5
- 2.Qxc4#
- 1...Rf5
- 2.Qe4#
- 1...Rg5
- 2.Qe3#
- 1...Rd6
- 2.Qxd6#
- 1...Rd7
- 2.Qf6#
- 1...Rd8
- 2.Qf6#
- 1...Bd3
- 2.c3#
- 1...Be4
- 2.Qxe4#
- 1...Bf7
- 2.Qe4#
- 1...c3
- 2.bxc3#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- R(d);XP(I)::S(C),XR(d)
- R(d);N_GUARD::B(G),XR(d)
- R(d);OGATE,SBLOCK::QAR1(J),XP(b)
- R(d);N_GUARD::B(G)
- B(f);OGATE,XS(H)::QAR1(J),XB(f)
- B(g);SBLOCK::B(G)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- P(b);XR(D)::P(B)
- Q(a);::QAR1(J),XR(d)
- R(d);OGATE,SBLOCK::QAR1(J),XP(b)
- B(f);::P(B)
- B(f);N_GUARD::QAR1(J),XB(f)
- B(g);::QAR1(J),XR(d)
- P(b);OGATE::P(A),XP(b)
- Refutation
- Q(a);XB(E)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- P(b);XR(D)::S(H)
- Q(a);::QAR1(J),XR(d)
- R(d);OGATE,SBLOCK::QAR1(J),XP(b)
- B(f);SBLOCK::P(B)
- Refutation
- Q(a);XB(E)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(d);SBLOCK,XS(H)::B(G)
- Q(a);::QAR1(J),XR(d)
- R(d);OGATE,SBLOCK::QAR1(J),XP(b)
- B(f);::P(B)
- B(f);N_GUARD::QAR1(J),XB(f)
- B(g);::QAR1(J),XR(d)
- P(b);OGATE::P(A),XP(b)
- Refutation
- Q(a);XB(E)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(a);XB(E)::S(H),XQ(a)
- R(d);XS(H)::QAB1(J)
- B(g);XS(H)::QAR1(J),XR(d)
- Q(a);::QAR1(J),XR(d)
- R(d);OGATE,SBLOCK::QAR1(J),XP(b)
- B(f);SBLOCK::P(B)
- B(f);N_GUARD::QAR1(J),XB(f)
- P(b);OGATE::P(A),XP(b)
- Refutation
- P(b);XR(D)
- Try
- Q(J);CHECK
- Vars
- K(c);S_FLIGHT::QAB1(J)
- R(d);N_GUARD,P_SPINR(d)::QAB1(J),XR(d)
- Refutation
- P(h);XQ(J)
- Try
- Actual
- S(H);
- Threat
- QAR1(J),XR(d)
- Vars
- Q(a);XB(E)::S(H),XQ(a)
- R(d);XP(I)::S(C),XR(d)
- P(b);XR(D)::S(H),XP(b)
- R(d);SBLOCK::B(G)
- R(d);OGATE,SBLOCK::QAR1(J),XP(b)
- R(d);S_CUTB(f)::QAR1(J)
- R(d);S_CUTB(g)::QAB1(J)
- R(d);OGATEB::QAR2(J),XR(d)
- R(d);N_GUARD::QAB(J)
- B(f);SBLOCK::P(B)
- B(f);N_GUARD::QAR1(J),XB(f)
- B(f);N_GUARD::QAR1(J)
- P(b);OGATE::P(A),XP(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).