MESON Chess Problem Database
Problem Display
PID: 255966 (1b2Rr2/1n5n/8/1Q6/b1rpNkBK/6pp/3P4/2B1Nq2 w - - 0 1)
Kornev, Sergey
Buletin Problemistic, 1982
#2
8 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Sd3#
- 1...Qd3
- 2.Sxd3#
- 1...Qg1
- 2.Sd3#
- 1...Qh1
- 2.Sd3#
- 1...Qf2
- 2.Sd3#
- 1...Rxc1
- 2.Qxf1#
- 1...Rc2
- 2.Qxf1#
- 1...Rc3
- 2.dxc3#
- 1...Rb4
- 2.Qxf1#
- 2.d3#
- 1...Rc5
- 2.Qxf1#
- 1...Rc6
- 2.Qxf1#
- 1...Rc7
- 2.Qxf1#
- 2.Qe5#
- 1...Rc8
- 2.Qxf1#
- 1...Rf5
- 2.Qxf5#
- 1...Rxe8
- 2.Qf5#
- 1...Rg8
- 2.Qf5#
- 1...Rh8
- 2.Qf5#
- 1...Bc2
- 2.d3#
- 1...Be5
- 2.Qxe5#
- 1...Ba7
- 2.Qe5#
- 1...Sc5
- 2.Qxb8#
- 1...Sd6
- 2.Qe5#
- 1...Sg5
- 2.Qxg5#
- 1...Sf6
- 2.Qf5#
- 2.Qg5#
- 1...Qg2
- Tries
- 1.Sf2?
- threat
- 2.Re4#
- 1...Qxe1
- 2.Sd3#
- 2.Sxh3#
- 1...Qxf2
- 2.Sd3#
- 1...Rxe8
- 2.Qf5#
- 1...Qe2
- 2.Sxh3#
- 1...Qg2
- 2.Sed3#
- 2.Sfd3#
- 1...Qd3
- 2.Sexd3#
- 2.Sfxd3#
- 2.Sxh3#
- 1...Qh1
- 2.Sed3#
- 2.Sfd3#
- 1...Bc2
- 2.d3#
- 1...Be5
- 2.Qxe5#
- 1...Sc5
- 2.Qxb8#
- 1...Sd6
- 2.Qe5#
- 1...Sg5
- 2.Qxg5#
- 1...Sf6
- 2.Qf5#
- 2.Qg5#
- 1...d3
- 2.Qxc4#
- 1...gxf2!
- threat
- 1.Sc3?
- threat
- 2.Sd5#
- 2.Re4#
- 2.d3#
- 1...Qxe1
- 2.Sd5#
- 1...Rxc3
- 2.dxc3#
- 1...Rxe8
- 2.Qf5#
- 1...dxc3
- 2.dxc3#
- 2.d3#
- 2.d4#
- 1...Qe2
- 2.Sxe2#
- 2.Sd5#
- 1...Qg2
- 2.Sd3#
- 1...Qd3
- 2.Sxd3#
- 2.Sd5#
- 1...Qg1
- 2.Sd3#
- 2.Se2#
- 2.Sd5#
- 2.Re4#
- 1...Qh1
- 2.Sd3#
- 2.Se2#
- 2.d3#
- 1...Qf2
- 2.Sd3#
- 2.Sd5#
- 2.Re4#
- 1...Rc5
- 2.Re4#
- 2.Qxf1#
- 2.d3#
- 1...Rf5
- 2.Re4#
- 2.Qxf5#
- 2.d3#
- 1...Bc2
- 2.Sd5#
- 2.d3#
- 1...Be5
- 2.Qxe5#
- 2.d3#
- 1...Sc5
- 2.Sd5#
- 2.Qxb8#
- 2.d3#
- 1...Sd6
- 2.Sd5#
- 2.Qe5#
- 2.d3#
- 1...Sg5
- 2.Sd5#
- 2.Qxg5#
- 2.d3#
- 1...Sf6
- 2.Qf5#
- 2.Qg5#
- 2.d3#
- 1...d3
- 2.Sd5#
- 2.Qxc4#
- 1...Qf3!
- threat
- 1.Sxg3?
- threat
- 2.Sh5#
- 2.Re4#
- 1...Rxe8
- 2.Qf5#
- 1...Qe2
- 2.Sxe2#
- 2.Sh5#
- 1...Qg2
- 2.Sd3#
- 2.Sh5#
- 1...Qd3
- 2.Sxd3#
- 2.Sh5#
- 1...Qh1
- 2.Sd3#
- 2.Se2#
- 2.Sh5#
- 1...Qf2
- 2.Sd3#
- 2.Re4#
- 1...Qf3
- 2.Sh5#
- 1...Rc5
- 2.Re4#
- 2.Qxf1#
- 1...Rf5
- 2.Re4#
- 2.Qxf5#
- 1...Bc2
- 2.Sh5#
- 2.d3#
- 1...Be5
- 2.Qxe5#
- 1...Sc5
- 2.Sh5#
- 2.Qxb8#
- 1...Sd6
- 2.Sh5#
- 2.Qe5#
- 1...Sg5
- 2.Sh5#
- 2.Qxg5#
- 1...Sf6
- 2.Qf5#
- 2.Qg5#
- 1...d3
- 2.Sh5#
- 2.Qxc4#
- 1...Qxe1!
- threat
- 1.Sf6?
- threat
- 2.Sd5#
- 2.Sh5#
- 2.Re4#
- 2.Qf5#
- 1...Qxe1
- 2.Sd5#
- 2.Sh5#
- 2.Qf5#
- 1...Rxe8
- 2.Qf5#
- 1...Bxb5
- 2.Sd5#
- 2.Sh5#
- 2.Re4#
- 1...Sxf6
- 2.Qf5#
- 2.Qg5#
- 1...Qe2
- 2.Sd5#
- 2.Sh5#
- 2.Qf5#
- 1...Qg2
- 2.Sd3#
- 2.Sh5#
- 2.Qf5#
- 1...Qd3
- 2.Sxd3#
- 2.Sd5#
- 2.Sh5#
- 1...Qh1
- 2.Sd3#
- 2.Sh5#
- 2.Qf5#
- 1...Qf3
- 2.Sh5#
- 2.Qf5#
- 1...Rc5
- 2.Re4#
- 2.Qxf1#
- 1...Bc2
- 2.Sd5#
- 2.Sh5#
- 2.d3#
- 1...Be5
- 2.Qxe5#
- 1...Sc5
- 2.Sd5#
- 2.Sh5#
- 2.Qxb8#
- 1...Sd6
- 2.Sd5#
- 2.Sh5#
- 2.Qe5#
- 1...Sg5
- 2.Sd5#
- 2.Sh5#
- 2.Qf5#
- 2.Qxg5#
- 1...d3
- 2.Sd5#
- 2.Sh5#
- 2.Qxc4#
- 2.Qf5#
- 1...Rxf6!
- threat
- 1.Rxf8+?
- 1...Sf6
- 2.Qf5#
- 1...Sxf8
- 2.Qf5#
- 1...Kxe4!
- 1...Sf6
- 1.Sf2?
- Keys
- 1.Sg5!
- threat
- 2.Re4#
- 1...Qxe1
- 2.Sxh3#
- 1...Rxe8
- 2.Qf5#
- 1...Sxg5
- 2.Qxg5#
- 1...Qe2
- 2.Sxh3#
- 1...Qg2
- 2.Sd3#
- 1...Qd3
- 2.Sxd3#
- 2.Sxh3#
- 1...Qh1
- 2.Sd3#
- 1...Qf3
- 2.Sxh3#
- 1...Bc2
- 2.d3#
- 1...Be5
- 2.Qxe5#
- 1...Sc5
- 2.Qxb8#
- 1...Sd6
- 2.Qe5#
- 1...Sf6
- 2.Qf5#
- 1...d3
- 2.Qxc4#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 13
- Sets
- Q(a);N_GUARD::S(B)
- Q(a);N_GUARD::S(B),XQ(a)
- R(e);OGATE,XB(A)::QAR(G),XQ(a)
- R(e);OGATE::QAR(G),XQ(a)
- R(e);OGATE::B(A)+P(C),XR(e)
- R(k);N_GUARD::QAR1(G),XR(k)
- R(k);N_GUARD,XR(H)::QAR1(G)
- R(k);N_GUARD::QAR1(G)
- B(d);S_CUTR(e)::B(A)+P(C)
- B(j);N_GUARD::QAB1(G),XB(j)
- B(j);N_GUARD::QAB1(G)
- S(h);OGATE::QAB(G),XB(j)
- S(h);S_CUTB(j)::QAB1(G)
- S(i);N_GUARD::QAB1(G),XS(i)
- Tries
- Try
- S(D);
- Threat
- R1(H)
- Vars
- Q(a);N_GUARD,XS(D)::S(B)
- R(k);N_GUARD,XR(H)::QAR1(G)
- Q(a);N_GUARD::S(D),XP(c)
- B(d);S_CUTR(e)::B(A)+P(C)
- B(j);N_GUARD::QAB1(G),XB(j)
- S(h);OGATE::QAB(G),XB(j)
- S(h);S_CUTB(j)::QAB1(G)
- S(i);N_GUARD::QAB1(G),XS(i)
- P(f);OGATEB::QAR(G),XR(e)
- Refutation
- P(b);XS(D)
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- Q(a);XS(B)::S(D)
- R(e);OGATE,XS(D)::B(A)+P(C),XR(e)
- R(k);N_GUARD,XR(H)::QAR1(G)
- Q(a);N_GUARD::S(B)
- Refutation
- Q(a);
- Try
- S(D);XP(b)
- Threat
- DUALS(2)
- Vars
- R(k);N_GUARD,XR(H)::QAR1(G)
- Q(a);::S(D)
- B(j);N_GUARD::QAB1(G),XB(j)
- Refutation
- Q(a);P_PINS(D),XS(B)
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- R(k);XR(H)::QAR1(G)
- B(j);N_GUARD::QAB1(G),XB(j)
- Refutation
- R(k);XS(D)
- Try
- R(H);CHECK,XR(k)
- Vars
- S(i);P_SPINS(i)::QAR1(G)
- S(i);XR(H)::QAR1(G)
- Refutation
- K(g);P-FLIGHT,XS(D)
- Try
- Actual
- S(D);
- Threat
- R1(H)
- Vars
- Q(a);N_GUARD,XS(B)::S(D),XP(c)
- R(k);N_GUARD,XR(H)::QAR1(G)
- S(i);OGATE,XS(D)::QAB1(G),XS(i)
- Q(a);N_GUARD::S(D),XP(c)
- Q(a);N_GUARD::S(B)
- B(d);S_CUTR(e)::B(A)+P(C)
- B(j);N_GUARD::QAB1(G),XB(j)
- S(h);OGATE::QAB(G),XB(j)
- S(h);S_CUTB(j)::QAB1(G)
- S(i);S_CUTR(k)::QAR1(G)
- P(f);OGATEB::QAR(G),XR(e)
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).