MESON Chess Problem Database
Problem Display
PID: 244825 (3br3/1b3B2/r7/1R4B1/2PNk1Pp/2p1PN2/P1n5/2K1RQ2 w - - 0 1)
Feoktistov, Aleksandr Fedorovich
64 Shakhmatnoe obozrenie, 2016
#2
12 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxa2
- 2.Bg6#
- 1...Ra3
- 2.Bg6#
- 1...Ra4
- 2.Bg6#
- 1...Ra5
- 2.Bg6#
- 1...Rc6
- 2.Bd5#
- 1...Rg6
- 2.Bxg6#
- 1...Ra7
- 2.Bg6#
- 1...Ra8
- 2.Bg6#
- 1...Re5
- 2.Rxe5#
- 1...Rf8
- 2.Re5#
- 1...Rg8
- 2.Re5#
- 1...Rh8
- 2.Re5#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bg6#
- 1...Bc8
- 2.Bd5#
- 1...Bxg5
- 2.Sxg5#
- 1...Bb6
- 2.Bg6#
- 1...Bf6
- 2.Bg6#
- 1...Be7
- 2.Re5#
- 1...Sxe3
- 2.Rxe3#
- 1...Sxd4
- 2.exd4#
- 1...Rxa2
- Tries
- 1.Se5?
- threat
- 2.Qg2#
- 2.Qd3#
- 2.Qh1#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...Bxg5
- 2.Qg2#
- 2.Qd3#
- 2.Qh1#
- 2.Qf3#
- 2.Qf5#
- 1...Sxe1
- 2.Qf4#
- 2.Qf5#
- 1...Sxe3
- 2.Qd3#
- 2.Qf4#
- 1...Sxd4
- 2.Qd3#
- 2.Qf4#
- 1...Bd5
- 2.Qf4#
- 2.Qf5#
- 1...Rf6
- 2.Qd3#
- 1...Bc8
- 2.Qg2#
- 2.Qd3#
- 2.Qh1#
- 2.Qf3#
- 2.Qf4#
- 1...Sb4
- 2.Qg2#
- 2.Qh1#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...h3
- 2.Qd3#
- 2.Qh1#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...Rxe5!
- threat
- 1.Se2?
- threat
- 2.Sxc3#
- 1...Kd3
- 2.Sg3#
- 1...Ra3
- 2.Bg6#
- 1...Bf6
- 2.Bg6#
- 1...Ba5!
- threat
- 1.Sc6?
- threat
- 2.Bd5#
- 2.Bg6#
- 1...Rxc6
- 2.Bd5#
- 1...Bxc6
- 2.Bg6#
- 1...Re5
- 2.Rxe5#
- 1...Rf8
- 2.Bd5#
- 2.Re5#
- 1...Rg8
- 2.Bd5#
- 2.Re5#
- 1...Bc8
- 2.Bd5#
- 1...Sb4
- 2.Bg6#
- 1...Sd4
- 2.Bd5#
- 2.exd4#
- 1...Re6!
- threat
- 1.Bf6?
- threat
- 2.Sg5#
- 2.Bg6#
- 1...Rxf6
- 2.Sg5#
- 1...Bxf6
- 2.Bg6#
- 1...Sxe3
- 2.Sg5#
- 1...Sxd4
- 2.Sg5#
- 1...Re5
- 2.Rxe5#
- 1...Rg8
- 2.Re5#
- 1...Bc8
- 2.Sg5#
- 2.Bd5#
- 1...Sxe1!
- threat
- 1.Be7?
- threat
- 2.Sg5#
- 2.Re5#
- 1...Rxe7
- 2.Sg5#
- 1...Bxe7
- 2.Re5#
- 1...Sxe1
- 2.Re5#
- 1...Ra5
- 2.Sg5#
- 2.Bg6#
- 1...Re6
- 2.Sg5#
- 1...Rg6
- 2.Bxg6#
- 2.Re5#
- 1...Rg8
- 2.Re5#
- 1...Bd5
- 2.Bxd5#
- 1...Bc7
- 2.Sg5#
- 1...Sxe3!
- threat
- 1.Qg2?
- threat
- 2.Se5#
- 2.Qxc2#
- 1...Kd3
- 2.Qxc2#
- 1...Rxa2
- 2.Se5#
- 2.Bg6#
- 1...Sxe1
- 2.Sxe1#
- 1...Sxe3
- 2.Rxe3#
- 2.Qc2#
- 1...Rf6
- 2.Qxc2#
- 1...Re5
- 2.Sxe5#
- 2.Qxc2#
- 1...Bd5
- 2.Qxc2#
- 1...Sa1
- 2.Se5#
- 1...Sa3
- 2.Se5#
- 1...Sb4
- 2.Se5#
- 1...h3
- 2.Qxc2#
- 1...Sxd4!
- threat
- 1.Se5?
- Keys
- 1.Sb3!
- threat
- 2.Sc5#
- 1...Rc6
- 2.Bd5#
- 1...Re5
- 2.Rxe5#
- 1...Bb6
- 2.Bg6#
- 1...Be7
- 2.Re5#
- threat
- 1.Sb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 17
- Sets
- R(e);N_GUARD,XP(D)::B(L)
- R(e);N_GUARD::B(L)
- R(e);S_CUTB(f)::B(L)
- R(e);N_GUARD::B(L),XR(e)
- R(h);N_GUARD::R1(J),XR(h)
- R(h);N_GUARD::R1(J)
- B(f);N_GUARD::B(L),XB(f)
- B(f);S_CUTR(e)::B(L)
- B(f);N_GUARD::B(L)
- B(g);P_PINP(E),XB(K)::S(F),XB(g)
- B(g);S_CUTR(e)::B(L)
- B(g);S_CUTR(h)::R1(J)
- S(a);OGATE,P_SPINS(a),XP(E)::R1(B),XS(a)
- S(a);OGATE,XS(H)::R(B)+P(E),XS(a)
- Tries
- Try
- S(F);
- Threat
- DUALS(6)
- Vars
- R(e);::QAB1(C)
- Refutation
- R(h);XS(F)
- Try
- S(H);
- Threat
- S(H),XP(b)
- Vars
- K(c);S_FLIGHT::QAB(C)+S(H)
- R(e);N_GUARD::B(L)
- B(g);S_CUTR(e)::B(L)
- Refutation
- B(g);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(e);XS(H)::B(L)
- B(f);XS(H)::B(L)
- R(h);N_GUARD::R1(J),XR(h)
- B(f);::B(L)
- S(a);::B(L)
- Refutation
- R(h);
- Try
- B(K);
- Threat
- DUALS(2)
- Vars
- R(e);XB(K)::S(F)
- B(g);XB(K)::B(L)
- S(a);P_SPINS(a),XP(E)::S(F)
- S(a);XS(H)::S(F)
- R(h);N_GUARD::R1(J),XR(h)
- R(h);N_GUARD::R1(J)
- Refutation
- S(a);XR(B)
- Try
- B(K);
- Threat
- DUALS(2)
- Vars
- R(h);XB(K)::S(F)
- B(g);XB(K)::R1(J)
- S(a);XR(B)::R1(J)
- R(e);::S(F)
- R(h);::R1(J)
- B(f);N_GUARD::B(L),XB(f)
- B(g);::S(F)
- Refutation
- S(a);P_SPINS(a),XP(E)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT::QAB1(C),XS(a)
- S(a);XR(B)::QAB(C)+S(F),XS(a)
- R(e);::QAB(C),XS(a)
- B(f);::QAB(C),XS(a)
- S(a);::QAB(C)+S(F)
- P(d);::QAB(C),XS(a)
- Refutation
- S(a);XS(H)
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- R(e);S_CUTB(f)::B(L)
- R(h);N_GUARD::R1(J),XR(h)
- B(g);S_CUTR(e)::B(L)
- B(g);S_CUTR(h)::R1(J)
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).