MESON Chess Problem Database
Problem Display
PID: 166396 (5rq1/PP3Nr1/2Q3b1/k1p2p2/1p6/8/PK6/R7 w - - 0 1)
Chernyavsky, Mykola Vasilovich
Kapustin, Fedor Mikhailovich
Best Problems, 2017
#2
7 + 8
SOLUTION
- SOUND
- Tries
- 1.Qb6+?
- 1...Ka4
- 2.Qa6#
- 1...Kxb6!
- 1...Ka4
- 1.b8Q?
- threat
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Qxf7
- 2.Qcb5#
- 2.Qbb5#
- 2.Qbb6#
- 1...Rgxf7
- 2.Qcb5#
- 2.Qbb5#
- 2.Qbb6#
- 1...Rfxf7
- 2.Qcb5#
- 2.Qbb5#
- 2.Qbb6#
- 1...Bxf7
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Qh7
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Qh8
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Rh7
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Rc8
- 2.Qcb5#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Rd8
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Re8
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Bh5
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Bh7
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...b3
- 2.Qcb5#
- 2.Qbb5#
- 2.Qbb6#
- 2.axb3#
- 2.a8Q#
- 2.a8R#
- 1...c4
- 2.Qcb5#
- 2.Qe5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...f4
- 2.Qcb5#
- 2.Qbc7#
- 2.Qbb5#
- 2.Qbb6#
- 2.a8Q#
- 2.a8R#
- 1...Rxb8!
- threat
- 1.b8R?
- threat
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Qxf7
- 2.Qb5#
- 1...Rgxf7
- 2.Qb5#
- 1...Rfxf7
- 2.Qb5#
- 1...Bxf7
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Qh7
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Qh8
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Rh7
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Rc8
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Rd8
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Re8
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Bh5
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Bh7
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...b3
- 2.Qb5#
- 2.axb3#
- 2.a8Q#
- 2.a8R#
- 1...c4
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...f4
- 2.Qb5#
- 2.a8Q#
- 2.a8R#
- 1...Rxb8!
- threat
- 1.Qb6+?
- Keys
- 1.Sd6!
- threat
- 2.Qb5#
- 1...Qxa2+
- 2.Rxa2#
- 1...Qb3+
- 2.axb3#
- 1...Rxb7
- 2.Sxb7#
- 1...Qc4
- 2.Sxc4#
- 1...Be8
- 2.a8Q#
- 2.a8R#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(D);CHECK
- Vars
- K(b);P-FLIGHT::QAR2(D)
- Refutation
- K(b);S_FLIGHT,XQ(D)
- Try
- P(F);
- Threat
- DUALS(6)
- Refutation
- R(g);XQ(F)
- Try
- P(F);
- Threat
- DUALS(3)
- Vars
- Q(h);XS(G)::QAR1(D)
- R(f);XS(G)::QAR1(D)
- R(g);XS(G)::QAR1(D)
- Refutation
- R(g);XR(F)
- Try
- Actual
- S(G);
- Threat
- QAR1(D)
- Vars
- Q(h);CHECK,OGATE,P_SPINQ(h),XP(B)::R(A),XQ(h)
- Q(h);CHECK,OGATE::R(A)+P(B),XQ(h)
- R(f);XP(F)::S(G),XR(f)
- Q(h);N_GUARD::S(G),XQ(h)
- B(e);S_CUTR(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).