MESON Chess Problem Database
Problem Display
PID: 135539 (3R4/3nN3/1Q5p/r1r1BR2/1np1k2K/4p3/4B1pN/8 w - - 0 1)
Dyachuk, Vasyl Vasilovich
1/2 Prize, StrateGems, 2009
#2
8 + 9
| 145 | StrateGems | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Qd4#
- 1...Rc6
- 2.Qd4#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...Sa2
- 2.Qb1#
- 1...Sd3
- 2.Bf3#
- 1...Sd5
- 2.Qb1#
- 1...Sa6
- 2.Qb1#
- 1...Sc6
- 2.Qb1#
- 1...Sxb6
- 2.Bf3#
- 2.Rd4#
- 1...Sf6
- 2.Bf3#
- 2.Rd4#
- 1...Sb8
- 2.Bf3#
- 2.Rd4#
- 1...Sf8
- 2.Bf3#
- 2.Rd4#
- 1...Rb5
- Tries
- 1.Sf3?
- threat
- 2.Rf4#
- 1...Rxe5
- 2.Qd4#
- 1...Sxe5
- 2.Rd4#
- 1...Sd5
- 2.Qb1#
- 1...Sd3!
- threat
- 1.Rxd7?
- threat
- 2.Bf3#
- 2.Rd4#
- 1...g1S
- 2.Rd4#
- 1...Sc2
- 2.Bf3#
- 1...Sd5
- 2.Qb1#
- 1...Sc6
- 2.Bf3#
- 2.Qb1#
- 1...Rd5!
- threat
- 1.Qxc5?
- threat
- 2.Rf4#
- 2.Qd4#
- 2.Qxc4#
- 1...Sxc5
- 2.Bf3#
- 2.Rd4#
- 1...Sxe5
- 2.Rd4#
- 2.Qd4#
- 1...Sc2
- 2.Rf4#
- 1...Sd3
- 2.Bf3#
- 2.Qd4#
- 2.Qxc4#
- 1...Sd5
- 2.Qd4#
- 2.Qxc4#
- 1...Sc6
- 2.Rf4#
- 1...Sb6
- 2.Bf3#
- 2.Rf4#
- 2.Rd4#
- 2.Qd4#
- 1...c3
- 2.Rf4#
- 2.Qxb4#
- 2.Qd4#
- 2.Qc4#
- 1...Rxc5!
- threat
- 1.Qd6?
- threat
- 2.Bf3#
- 2.Rf4#
- 2.Qd4#
- 1...Rxe5
- 2.Bf3#
- 1...Sxe5
- 2.Qd4#
- 1...g1S
- 2.Rf4#
- 2.Qd4#
- 1...Rd5
- 2.Rf4#
- 1...Sc2
- 2.Bf3#
- 2.Rf4#
- 1...Sd3
- 2.Bf3#
- 2.Qd4#
- 1...Sc6
- 2.Bf3#
- 2.Rf4#
- 1...Sd5!
- threat
- 1.Qe6?
- threat
- 2.Rf4#
- 1...Rxe5
- 2.Qxc4#
- 1...Sxe5
- 2.Bf3#
- 1...Sd3
- 2.Bf3#
- 1...Sd5!
- threat
- 1.Qf6?
- threat
- 2.Rf4#
- 1...Sxf6
- 2.Bf3#
- 2.Rd4#
- 1...Sd3
- 2.Bf3#
- 1...Sd5!
- threat
- 1.Qg6?
- threat
- 2.Rg5#
- 2.Rh5#
- 2.Qxg2#
- 2.Qg4#
- 1...Rxe5
- 2.Qg4#
- 1...g1Q
- 2.Rg5#
- 1...g1S
- 2.Rg5#
- 2.Rh5#
- 2.Qg4#
- 1...g1B
- 2.Rg5#
- 2.Rh5#
- 2.Qg2#
- 2.Qg4#
- 1...g1R
- 2.Rg5#
- 1...Ra6
- 2.Qxg2#
- 2.Qg4#
- 1...Rc6
- 2.Qxg2#
- 2.Qg4#
- 1...Sd3
- 2.Bf3#
- 2.Rg5#
- 2.Rh5#
- 2.Qxg2#
- 1...Sd5
- 2.Rg5#
- 2.Rh5#
- 2.Qxg2#
- 1...Sf6
- 2.Bf3#
- 2.Rg5#
- 2.Rh5#
- 2.Rd4#
- 2.Qxg2#
- 1...Sf8
- 2.Bf3#
- 2.Rd4#
- 2.Qxg2#
- 2.Qg4#
- 1...h5
- 2.Rg5#
- 2.Rxh5#
- 2.Qxg2#
- 1...Sxe5!
- threat
- 1.Qxh6?
- threat
- 2.Qf4#
- 1...Sd3
- 2.Bf3#
- 1...Sd5!
- threat
- 1.Sf3?
- Keys
- 1.Sg4!
- threat
- 2.Rf4#
- 1...Rxe5
- 2.Qxe3#
- 1...Sxe5
- 2.Sf6#
- 1...Sd3
- 2.Bf3#
- 1...Sd5
- 2.Qb1#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(g);OGATE::QAR1(F)
- S(c);OGATE::QAB(F)
- S(c);SBLOCK::B(A)
- Tries
- Try
- S(B);
- Threat
- R1(E)
- Vars
- R(g);OGATE,XB(D)::QAR1(F)
- S(i);OGATE,XB(D)::R1(H)
- S(c);OGATE::QAB(F)
- Refutation
- S(c);
- Try
- R(H);XS(i)
- Threat
- DUALS(2)
- Vars
- P(a);::R1(H)
- S(c);::B(A)
- S(c);OGATE::QAB(F)
- Refutation
- R(g);
- Try
- Q(F);XR(g)
- Threat
- DUALS(3)
- Vars
- S(c);::R1(E)
- Refutation
- R(f);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- R(g);XB(D)::B(A)
- S(i);XB(D)::QAR1(F)
- R(g);::R1(E)
- Refutation
- S(c);
- Try
- Q(F);
- Threat
- R1(E)
- Vars
- R(g);N_GUARD,P_SPINR(g),XB(D)::QAR2(F),XP(d)
- S(i);P_SPINS(i),XB(D)::B(A)
- S(c);SBLOCK::B(A)
- Refutation
- S(c);
- Try
- Q(F);
- Threat
- R1(E)
- Vars
- S(c);SBLOCK::B(A)
- Refutation
- S(c);
- Try
- Q(F);
- Threat
- DUALS(4)
- Vars
- R(g);XB(D)::QAR2(F)
- P(a);::QAB(F)+R(E)
- Refutation
- S(i);XB(D)
- Try
- Q(F);XP(h)
- Threat
- QAR1(F)
- Vars
- S(c);SBLOCK::B(A)
- Refutation
- S(c);
- Try
- Actual
- S(B);
- Threat
- R1(E)
- Vars
- R(g);OGATE,XB(D)::QAR1(F),XP(b)
- S(i);N_GUARD,XB(D)::S(B)
- S(c);SBLOCK::B(A)
- S(c);OGATE::QAB(F)
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).