MESON Chess Problem Database
Problem Display
PID: 238548 (n1Q5/K1PpP1B1/2bk2p1/3P1pP1/2R5/4Nnq1/8/8 w - - 0 1)
Dyachuk, Vasyl Vasilovich
1st Prize, Problemist Ukraini, 2008
#2
9 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kxe7
- 2.Qf8#
- 1...Kxe7
- Tries
- 1.Sxf5+?
- 1...Kxd5
- 2.Qg8#
- 1...gxf5!
- 1...Kxd5
- 1.Bf8?
- threat
- 2.e8Q#
- 2.e8R#
- 1...Ke5
- 2.e8Q#
- 2.e8R#
- 1...Bxd5
- 2.e8Q#
- 2.e8R#
- 1...Sxg5
- 2.e8Q#
- 2.e8R#
- 1...Sxc7
- 2.e8Q#
- 2.e8R#
- 1...Qe1
- 2.e8Q#
- 2.e8R#
- 1...Qf2
- 2.e8Q#
- 2.e8R#
- 1...Qh2
- 2.e8Q#
- 2.e8R#
- 1...Qf4
- 2.e8Q#
- 2.e8R#
- 1...Qh4
- 2.e8Q#
- 2.e8R#
- 1...Qg1
- 2.e8Q#
- 2.e8R#
- 1...Qg2
- 2.e8Q#
- 2.e8R#
- 1...Qh3
- 2.e8Q#
- 2.e8R#
- 1...Qg4
- 2.e8Q#
- 2.e8R#
- 1...Ba4
- 2.e8Q#
- 2.e8R#
- 1...Bb5
- 2.e8Q#
- 2.e8R#
- 1...Bb7
- 2.e8Q#
- 2.e8R#
- 1...Se1
- 2.e8Q#
- 2.e8R#
- 1...Sg1
- 2.e8Q#
- 2.e8R#
- 1...Sd2
- 2.e8Q#
- 2.e8R#
- 1...Sh2
- 2.e8Q#
- 2.e8R#
- 1...Sd4
- 2.e8Q#
- 2.e8R#
- 1...Sh4
- 2.e8Q#
- 2.e8R#
- 1...Se5
- 2.e8Q#
- 2.e8S#
- 2.e8B#
- 2.e8R#
- 1...Sb6
- 2.e8Q#
- 2.e8R#
- 1...f4
- 2.e8Q#
- 2.e8R#
- 1...Qxg5!
- threat
- 1.Rxc6+?
- 1...Kxe7
- 2.Qf8#
- 1...dxc6!
- 1...Kxe7
- 1.Qb8?
- threat
- 2.c8S#
- 1...Kxe7
- 2.Qf8#
- 1...Sxc7
- 2.Qb4#
- 1...Bxd5!
- threat
- 1.Qd8?
- threat
- 2.Rxc6#
- 2.c8S#
- 2.e8S#
- 1...Sxc7
- 2.Rxc6#
- 1...Qe5
- 2.Rxc6#
- 2.c8S#
- 1...Ba4
- 2.c8S#
- 2.e8S#
- 1...Bb5
- 2.c8S#
- 2.e8S#
- 1...Bb7
- 2.e8S#
- 1...Sd4
- 2.c8S#
- 2.e8S#
- 1...Se5
- 2.c8S#
- 2.e8S#
- 1...Sb6
- 2.Rxc6#
- 2.e8S#
- 1...Bxd5!
- threat
- 1.Sxf5+?
- Keys
- 1.Qf8!
- threat
- 2.e8S#
- 1...Kxc7
- 2.Qb8#
- 1...Bxd5
- 2.e8Q#
- 2.e8R#
- 1...Sxc7
- 2.e8Q#
- 2.e8S#
- 2.e8B#
- 2.e8R#
- 1...Ba4
- 2.Qf6#
- 2.c8S#
- 2.e8Q#
- 2.e8S#
- 2.e8B#
- 2.e8R#
- 1...Bb5
- 2.Qf6#
- 2.c8S#
- 2.e8Q#
- 2.e8S#
- 2.e8B#
- 2.e8R#
- 1...Bb7
- 2.Qf6#
- 2.e8Q#
- 2.e8S#
- 2.e8B#
- 2.e8R#
- threat
- 1.Qf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(e);OGATEB,S_FLIGHT,XP(G)::QAB1(I)
- Tries
- Try
- S(A);CHECK,XP(c)
- Vars
- K(e);P-FLIGHT,XP(C)::QAB(I)
- Refutation
- P(f);XS(A)
- Try
- B(H);
- Threat
- P=Q
- Vars
- K(e);S_FLIGHT::P=Q
- B(d);XP(C)::P=Q
- S(a);XP(D)::P=Q
- S(h);XP(F)::P=Q
- Q(b);::P=Q
- Q(b);P_PINS(A)::P=Q
- B(d);::P=Q
- S(a);::P=Q
- S(h);::P=Q
- P(c);::P=Q
- Refutation
- Q(b);XP(D)
- Try
- R(B);CHECK,XB(d)
- Vars
- K(e);S_FLIGHT,XP(G)::QAB1(I)
- Refutation
- P(g);XR(B)
- Try
- Q(I);
- Threat
- P=S
- Vars
- K(e);OGATEB,S_FLIGHT,XP(G)::QAB1(I)
- S(h);P_SPINS(h),SBLOCK,XP(F)::QAB(I)
- Refutation
- B(d);XP(C)
- Try
- Q(I);P_PINP(g)
- Threat
- DUALS(3)
- Vars
- S(h);XP(F)::R1(B),XB(d)
- B(d);::P=S
- Refutation
- B(d);XP(C)
- Try
- Actual
- Q(I);
- Threat
- P=S
- Vars
- K(e);OGATEB,P_SPINB(d),S_FLIGHT,XP(F)::QAB1(I)
- B(d);XP(C)::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).