MESON Chess Problem Database
Problem Display
PID: 237381 (8/n3N2P/1p2KRp1/7P/1BpkP3/r1n2pr1/2QP4/6N1 w - - 0 1)
Dyachuk, Vasyl Vasilovich
4th Prize, Schweizerische Schachzeitung, 2014-2016
#2
10 + 9
| 17262 | FIDE Album (2013-2015) | 2019 |
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rg2
- 2.Sxf3#
- 1...Rg4
- 2.Sxf3#
- 1...Rg5
- 2.Sxf3#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 1...gxh5
- 2.Sf5#
- 1...g5
- 2.Sf5#
- 1...Rg2
- Tries
- 1.Rxf3?
- threat
- 2.h8Q#
- 2.h8B#
- 1...Rxg1
- 2.h8Q#
- 2.h8B#
- 1...Rxf3
- 2.Sxf3#
- 1...Sxe4
- 2.Se2#
- 1...gxh5
- 2.Sf5#
- 1...Ra1
- 2.dxc3#
- 2.h8Q#
- 2.h8B#
- 1...Ra2
- 2.dxc3#
- 2.h8Q#
- 2.h8B#
- 1...Rb3
- 2.h8Q#
- 2.h8B#
- 1...Ra4
- 2.dxc3#
- 2.h8Q#
- 2.h8B#
- 1...Ra5
- 2.dxc3#
- 1...Ra6
- 2.dxc3#
- 2.h8Q#
- 2.h8B#
- 1...Rg2
- 2.h8Q#
- 2.h8B#
- 1...Rh3
- 2.h8Q#
- 2.h8B#
- 1...Rg4
- 2.h8Q#
- 2.h8B#
- 1...Sb1
- 2.Se2#
- 2.h8Q#
- 2.h8B#
- 1...Sd1
- 2.Se2#
- 2.h8Q#
- 2.h8B#
- 1...Sa2
- 2.Se2#
- 2.h8Q#
- 2.h8B#
- 1...Se2
- 2.Sxe2#
- 2.h8Q#
- 2.h8B#
- 1...Sa4
- 2.Se2#
- 2.h8Q#
- 2.h8B#
- 1...Scb5
- 2.Se2#
- 2.h8Q#
- 2.h8B#
- 1...Sd5
- 2.Se2#
- 1...Sab5
- 2.Sc6#
- 2.h8Q#
- 2.h8B#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 2.h8Q#
- 2.h8B#
- 1...b5
- 2.h8Q#
- 2.h8B#
- 1...g5
- 2.Sf5#
- 2.h8Q#
- 2.h8B#
- 1...Rg5!
- threat
- 1.Rf5?
- threat
- 2.h8Q#
- 2.h8B#
- 1...Rxg1
- 2.h8Q#
- 2.h8B#
- 1...Sxe4
- 2.Rd5#
- 1...gxf5
- 2.Sxf5#
- 1...Ra1
- 2.Bxc3#
- 2.h8Q#
- 2.h8B#
- 1...Ra2
- 2.Bxc3#
- 2.h8Q#
- 2.h8B#
- 1...Rb3
- 2.h8Q#
- 2.h8B#
- 1...Ra4
- 2.Bxc3#
- 2.h8Q#
- 2.h8B#
- 1...Ra5
- 2.Bxc3#
- 1...Ra6
- 2.Bxc3#
- 2.h8Q#
- 2.h8B#
- 1...Rg2
- 2.Sxf3#
- 2.h8Q#
- 2.h8B#
- 1...Rh3
- 2.h8Q#
- 2.h8B#
- 1...Rg4
- 2.Sxf3#
- 2.h8Q#
- 2.h8B#
- 1...Rg5
- 2.Sxf3#
- 2.h8Q#
- 2.h8B#
- 1...Sb1
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Sd1
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Sa2
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Se2
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Sa4
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Scb5
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Sd5
- 2.Rxd5#
- 1...Sab5
- 2.Sc6#
- 2.h8Q#
- 2.h8B#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 2.h8Q#
- 2.h8B#
- 1...f2
- 2.h8Q#
- 2.h8B#
- 1...b5
- 2.Bc5#
- 2.h8Q#
- 2.h8B#
- 1...g5
- 2.h8Q#
- 2.h8B#
- 1...gxh5!
- threat
- 1.Qxc3+?
- 1...Kxe4
- 2.Qxc4#
- 1...Rxc3!
- 1...Kxe4
- 1.dxc3+?
- 1...Ke3
- 2.Sd5#
- 1...Rxc3!
- 1...Ke3
- 1.hxg6?
- threat
- 2.Sf5#
- 1...Rg5
- 2.Sxf3#
- 1...Ra5!
- threat
- 1.Rxf3?
- Keys
- 1.Rf4!
- threat
- 2.h8Q#
- 2.h8B#
- 1...Rxg1
- 2.h8Q#
- 2.h8B#
- 1...Sxe4
- 2.Rxe4#
- 2.Qxe4#
- 2.h8Q#
- 2.h8B#
- 1...gxh5
- 2.Sf5#
- 1...Ra1
- 2.Qxc3#
- 2.h8Q#
- 2.h8B#
- 1...Ra2
- 2.Qxc3#
- 2.h8Q#
- 2.h8B#
- 1...Rb3
- 2.h8Q#
- 2.h8B#
- 1...Ra4
- 2.Qxc3#
- 2.h8Q#
- 2.h8B#
- 1...Ra5
- 2.Qxc3#
- 1...Ra6
- 2.Qxc3#
- 2.h8Q#
- 2.h8B#
- 1...Rg2
- 2.Sxf3#
- 2.h8Q#
- 2.h8B#
- 1...Rh3
- 2.h8Q#
- 2.h8B#
- 1...Rg4
- 2.Sxf3#
- 2.h8Q#
- 2.h8B#
- 1...Rg5
- 2.Sxf3#
- 1...Sb1
- 2.e5#
- 2.h8Q#
- 2.h8B#
- 1...Sd1
- 2.e5#
- 2.h8Q#
- 2.h8B#
- 1...Sa2
- 2.e5#
- 2.h8Q#
- 2.h8B#
- 1...Se2
- 2.h8Q#
- 2.h8B#
- 1...Sa4
- 2.e5#
- 2.h8Q#
- 2.h8B#
- 1...Scb5
- 2.e5#
- 2.h8Q#
- 2.h8B#
- 1...Sd5
- 2.exd5#
- 1...Sab5
- 2.Sc6#
- 2.h8Q#
- 2.h8B#
- 1...Sc6
- 2.Sxc6#
- 1...Sc8
- 2.Sc6#
- 2.h8Q#
- 2.h8B#
- 1...f2
- 2.h8Q#
- 2.h8B#
- 1...b5
- 2.h8Q#
- 2.h8B#
- 1...g5
- 2.Sf5#
- 2.h8Q#
- 2.h8B#
- threat
- 1.Rf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(d);N_GUARD::S(A),XP(c)
- S(i);N_GUARD::S(I)
- S(i);N_GUARD::S(I),XS(i)
- P(h);N_GUARD,XP(F)::S(I)
- P(h);N_GUARD::S(I)
- Tries
- Try
- R(H);XP(c)
- Threat
- P=Q
- Vars
- R(d);XS(A)::P=Q
- R(d);XR(H)::S(A),XR(d)
- S(b);N_GUARD,XP(E)::S(A)
- P(h);N_GUARD,XP(F)::S(I)
- R(a);::P=Q
- R(a);N_GUARD::P(C),XS(b)
- R(d);::P=Q
- S(b);N_GUARD::S(A)
- S(i);N_GUARD::S(I),XS(i)
- P(g);::P=Q
- Refutation
- R(d);
- Try
- R(H);
- Threat
- P=Q
- Vars
- R(d);XS(A)::P=Q
- S(b);N_GUARD,XP(E)::R1(H)
- P(h);XR(H)::S(I),XP(h)
- R(a);::P=Q
- R(a);N_GUARD::B(D),XS(b)
- R(d);::P=Q
- S(b);N_GUARD::R1(H),XS(b)
- S(i);N_GUARD::S(I),XS(i)
- P(c);::P=Q
- P(h);::P=Q
- Refutation
- P(h);XP(F)
- Try
- Q(B);CHECK,XS(b)
- Vars
- K(f);P-FLIGHT,XP(E)::QAR2(B),XP(e)
- Refutation
- R(a);XQ(B)
- Try
- P(C);CHECK,XS(b)
- Vars
- K(f);S_FLIGHT::S(I)
- Refutation
- R(a);XP(C)
- Try
- P(F);XP(h)
- Threat
- S(I)
- Vars
- R(d);N_GUARD::S(A),XP(c)
- Refutation
- R(a);
- Try
- Actual
- R(H);
- Threat
- P=Q
- Vars
- R(d);XS(A)::P=Q
- P(h);N_GUARD,XP(F)::S(I)
- R(a);::P=Q
- R(a);N_GUARD::QAB1(B),XS(b)
- R(d);::P=Q
- R(d);N_GUARD::S(A),XP(c)
- S(b);::P=Q
- S(b);OGATE::R(H)+P(E),XS(b)
- S(i);N_GUARD::S(I),XS(i)
- P(c);::P=Q
- P(g);::P=Q
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).