MESON Chess Problem Database
Problem Display
PID: 235472 (3RR3/n4B1q/K4P2/1p2p3/1P1Nk3/Q1b1NnB1/2bpPP2/3r4 w - - 0 1)
Shanshin, Valery Yurevich
Schach, 2018
#2
12 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qg6
- 2.Bxg6#
- 1...Qh1
- 2.Bg6#
- 1...Qh2
- 2.Bg6#
- 1...Qh4
- 2.Bg6#
- 1...Qh8
- 2.Bg6#
- 1...Bd3
- 2.exf3#
- 1...Ba1
- 2.exf3#
- 1...Bb2
- 2.exf3#
- 1...Bxb4
- 2.exf3#
- 1...Bxd4
- 2.Bd5#
- 1...Se1
- 2.Rxe5#
- 1...Sg1
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sxd4
- 2.Bd5#
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sg5
- 2.Rxe5#
- 1...Qg6
- Tries
- 1.Sxd1?
- threat
- 2.Sxc3#
- 1...Bxb4
- 2.Qe3#
- 2.Qxf3#
- 2.exf3#
- 1...Bxd4
- 2.Qxf3#
- 1...Sxd4
- 2.Rxe5#
- 1...Ba1
- 2.Qe3#
- 2.Qxf3#
- 2.exf3#
- 1...Bb2
- 2.Qe3#
- 2.Qxf3#
- 2.exf3#
- 1...Bxd1!
- threat
- 1.Sb3?
- threat
- 2.Sc5#
- 2.Bd5#
- 1...Qxf7
- 2.Sc5#
- 1...Bxb4
- 2.Bd5#
- 1...Qg8
- 2.Sc5#
- 1...Bd4
- 2.Bd5#
- 1...Bxb3!
- threat
- 1.Sxf3?
- threat
- 2.Sg5#
- 2.Bd5#
- 1...Qxf7
- 2.Sg5#
- 1...Qf5
- 2.Bd5#
- 1...Qg6
- 2.Bd5#
- 2.Bxg6#
- 1...Qh4
- 2.Bd5#
- 2.Bg6#
- 1...Qh5
- 2.Bd5#
- 1...Qh6
- 2.Bd5#
- 1...Qg7
- 2.Bd5#
- 1...Bb3
- 2.Sg5#
- 1...Qg8!
- threat
- 1.Sxb5?
- threat
- 2.Sxc3#
- 2.Bd5#
- 1...Qxf7
- 2.Sxc3#
- 1...Bxb4
- 2.Bd5#
- 1...Qg8
- 2.Sxc3#
- 1...Bb3
- 2.Sxc3#
- 1...Bd3
- 2.Bd5#
- 2.exd3#
- 1...Ba1
- 2.Bd5#
- 1...Bb2
- 2.Bd5#
- 1...Bd4
- 2.Sd6#
- 2.Bd5#
- 1...Sxb5!
- threat
- 1.Qxc3?
- threat
- 2.Bd5#
- 2.Qxc2#
- 2.exf3#
- 1...Qxf7
- 2.Qxc2#
- 2.exf3#
- 1...Sxd4
- 2.Bd5#
- 2.Rxd4#
- 2.Rxe5#
- 2.Qxd4#
- 1...Qg8
- 2.Qxc2#
- 2.exf3#
- 1...Qf5
- 2.Bd5#
- 2.Qxc2#
- 1...Qh1
- 2.Bd5#
- 2.Bg6#
- 2.Qxc2#
- 1...Qh5
- 2.Bd5#
- 2.Qxc2#
- 1...Rc1
- 2.Bd5#
- 2.exf3#
- 1...Bb1
- 2.Bd5#
- 2.exf3#
- 1...Bb3
- 2.Qd3#
- 2.exf3#
- 1...Bd3
- 2.Bd5#
- 2.Qxd3#
- 2.exd3#
- 2.exf3#
- 1...Ba4
- 2.Bd5#
- 2.Qd3#
- 2.exf3#
- 1...Se1
- 2.Bd5#
- 2.Rxe5#
- 1...Sg1
- 2.Bd5#
- 2.Rxe5#
- 2.Qxc2#
- 1...Sh2
- 2.Bd5#
- 2.Rxe5#
- 2.Qxc2#
- 1...Sh4
- 2.Bd5#
- 2.Rxe5#
- 2.Qxc2#
- 1...Sg5
- 2.Bd5#
- 2.Rxe5#
- 2.Qxc2#
- 1...Ra1+!
- threat
- 1.Sxd1?
- Keys
- 1.Sd5!
- threat
- 2.Sxc3#
- 1...Kxd4
- 2.Sxc3#
- 1...Bxb4
- 2.Qe3#
- 1...Bxd4
- 2.Qxf3#
- 1...Sxd4
- 2.Rxe5#
- 1...Ba1
- 2.Qe3#
- 1...Bb2
- 2.Qe3#
- threat
- 1.Sd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(j);N_GUARD,P_PINP(I)::B(J),XQ(j)
- Q(j);N_GUARD::B(J)
- B(b);SBLOCK::P(A),XS(e)
- B(d);::P(A),XS(e)
- B(d);XP(F)::P(A),XS(e)
- B(d);SBLOCK,XS(G)::B(J)
- S(e);N_GUARD::R1(L),XP(h)
- Tries
- Try
- S(D);XR(a)
- Threat
- S(D),XB(d)
- Vars
- B(d);OGATE,XS(G)::QAB1(C),XS(e)
- S(e);N_GUARD,XS(G)::R1(L),XP(h)
- Refutation
- B(b);XS(D)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(j);XB(J)::S(G)
- B(d);XP(F)::B(J)
- Q(j);::S(G)
- B(d);::B(J)
- Refutation
- B(b);XS(G)
- Try
- S(G);XS(e)
- Threat
- DUALS(2)
- Vars
- Q(j);XB(J)::S(G)
- Q(j);::B(J)
- Q(j);P_PINP(I)::B(J)
- B(b);::S(G)
- Refutation
- Q(j);
- Try
- S(G);XP(g)
- Threat
- DUALS(2)
- Vars
- Q(j);XB(J)::S(G),XB(d)
- B(d);XP(F)::B(J)
- Q(j);::S(G),XB(d)
- B(b);::S(G),XB(d)
- B(d);::B(J)
- Refutation
- S(i);XS(G)
- Try
- Q(C);XB(d)
- Threat
- DUALS(3)
- Refutation
- R(a);CHECK
- Try
- Actual
- S(D);
- Threat
- S(D),XB(d)
- Vars
- K(f);N_SPINP(h),P-FLIGHT,XS(G)::R(K)+S(D),XB(d)
- B(d);OGATE,XP(F)::QAR1(C)
- B(d);OGATE,SBLOCK,XS(G)::QAB1(C),XS(e)
- S(e);N_GUARD,SBLOCK,XS(G)::R1(L),XP(h)
- B(d);OGATE::QAR1(C)
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).