MESON Chess Problem Database
Problem Display
PID: 238600 (r7/4QR1p/4B2p/1N1NP3/1p2kB2/8/1qnbP1P1/3R3K w - - 0 1)
Murashev, Pavel Aleksandrovich
Problemist Ukraini, 2015
#2
11 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Sd6#
- 1...Bc1
- 2.Sd6#
- 2.Bf5#
- 1...Be1
- 2.Sd6#
- 2.Bf5#
- 1...Bc3
- 2.Sd6#
- 2.Bf5#
- 1...Be3
- 2.Sd6#
- 2.Bf5#
- 1...Bxf4
- 2.Bf5#
- 1...Sd4
- 2.Sd6#
- 1...Qd4
- Tries
- 1.Sdc3+?
- 1...Bxc3
- 2.Sd6#
- 2.Bd5#
- 2.Qb7#
- 1...bxc3
- 2.Qb7#
- 1...Qxc3!
- 1...Bxc3
- 1.Rf5?
- threat
- 2.Sf6#
- 1...Qxe5
- 2.Rxe5#
- 1...Bxf4
- 2.Sd6#
- 1...Rf8!
- threat
- 1.Qh4?
- threat
- 2.Sf6#
- 1...Bxf4
- 2.Qxf4#
- 1...Qxe5!
- threat
- 1.Qg5?
- threat
- 2.Sf6#
- 2.Qf5#
- 1...Qxe5
- 2.Qxe5#
- 1...Bxf4
- 2.Sd6#
- 2.Rxf4#
- 2.Qxf4#
- 2.Qf5#
- 1...Se3
- 2.Sf6#
- 1...Sd4
- 2.Sd6#
- 2.Sf6#
- 1...hxg5!
- threat
- 1.Qf6?
- threat
- 2.Qf5#
- 1...Qxe5
- 2.Qxe5#
- 1...Sd4
- 2.Sd6#
- 1...Se3!
- threat
- 1.Qb7?
- threat
- 2.Sdc3#
- 2.Se3#
- 2.Sxb4#
- 2.Sb6#
- 2.Sdc7#
- 2.Se7#
- 2.Bf5#
- 1...Qxe5
- 2.Sdc3#
- 1...Qd4
- 2.Sd6#
- 2.Sdc3#
- 2.Bf5#
- 1...Qc3
- 2.Sdxc3#
- 2.Bf5#
- 1...Qa2
- 2.Sdc3#
- 2.Bf5#
- 1...Qb3
- 2.Sdc3#
- 2.Bf5#
- 1...Ra6
- 2.Sdc3#
- 2.Sb6#
- 2.Bf5#
- 1...Ra7
- 2.Sdc3#
- 2.Bf5#
- 1...Rb8
- 2.Sdc3#
- 2.Bf5#
- 1...Rc8
- 2.Sdc3#
- 2.Sdc7#
- 2.Bf5#
- 1...Rd8
- 2.Sdc3#
- 2.Bf5#
- 1...Bc3
- 2.Sd6#
- 2.Sdxc3#
- 2.Se3#
- 2.Sxb4#
- 2.Sb6#
- 2.Sdc7#
- 2.Se7#
- 2.Bf5#
- 1...Be3
- 2.Sd6#
- 2.Sdc3#
- 2.Sxe3#
- 2.Sxb4#
- 2.Sb6#
- 2.Sdc7#
- 2.Se7#
- 2.Bf5#
- 1...Se3
- 2.Sdc3#
- 2.Sxe3#
- 1...Sd4
- 2.Sd6#
- 2.Sdc3#
- 1...b3
- 2.Sdc3#
- 2.Se3#
- 2.Sb4#
- 2.Sb6#
- 2.Sdc7#
- 2.Se7#
- 2.Bf5#
- 1...Bxf4!
- threat
- 1.g3?
- threat
- 2.Sf6#
- 1...Bxf4
- 2.Bf5#
- 1...Qxe5!
- threat
- 1.Sdc3+?
- Keys
- 1.Qc5!
- threat
- 2.Sd6#
- 2.Bf5#
- 1...Qxe5
- 2.Qxc2#
- 1...Bxf4
- 2.Sf6#
- 1...Ra6
- 2.Bf5#
- 1...Rd8
- 2.Bf5#
- 1...Se3
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- threat
- 1.Qc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- Q(a);SBLOCK::S(F)
- B(c);XB(E)::B(I)
- S(b);SBLOCK::S(F)
- Tries
- Try
- S(G);CHECK
- Vars
- P(d);XS(G)::QAB(J)
- Refutation
- Q(a);XS(G)
- Try
- R(K);
- Threat
- S(G)
- Vars
- Q(a);OGATE,XP(H)::R1(K),XQ(a)
- B(c);XB(E)::S(F)
- Refutation
- R(h);
- Try
- Q(J);
- Threat
- S(G)
- Vars
- B(c);OGATE,P_SPINB(c),XB(E)::QAR1(J),XB(c)
- Refutation
- Q(a);XP(H)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(a);OGATE,XP(H)::QAR1(J),XQ(a)
- S(b);::S(G)
- Refutation
- P(f);XQ(J)
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- Q(a);OGATE,XP(H)::QAR1(J),XQ(a)
- S(b);SBLOCK::S(F)
- Refutation
- S(b);
- Try
- Q(J);
- Threat
- DUALS(7)
- Vars
- Q(a);XP(H)::QAB(J)+S(G),DCHECK
- Refutation
- B(c);XB(E)
- Try
- P(D);
- Threat
- S(G)
- Vars
- B(c);XB(E)::B(I)
- Refutation
- Q(a);XP(H)
- Try
- Actual
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XP(H)::QAB(J),XS(b)
- B(c);SBLOCK,XB(E)::S(G)
- R(h);::B(I)
- S(b);::S(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).