MESON Chess Problem Database
Problem Display
PID: 238553 (3R1R2/1p6/6p1/2pPk1Pb/1N2pN2/3n4/8/1K1Q2B1 w - - 0 1)
Dyachuk, Vasyl Vasilovich
4th Prize, Problemist Ukraini, 2009
#2
9 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bxd1
- 2.Sxg6#
- 1...Be2
- 2.Sxg6#
- 1...Bf3
- 2.Sxg6#
- 1...Bg4
- 2.Sxg6#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Bxd1
- Tries
- 1.Bxc5?
- threat
- 2.Rde8#
- 1...Sxf4
- 2.Bd4#
- 2.Bd6#
- 2.Qd4#
- 1...Bg4
- 2.Sxg6#
- 1...Sxc5!
- threat
- 1.Qc2?
- threat
- 2.Qc3#
- 1...cxb4
- 2.Qc7#
- 1...e3!
- threat
- 1.Qe2?
- threat
- 2.Sbxd3#
- 2.Sfxd3#
- 1...Bxe2
- 2.Sxg6#
- 1...Sxb4
- 2.Qb2#
- 1...Sxf4
- 2.Qb2#
- 1...cxb4
- 2.Sxd3#
- 1...Sf2
- 2.Qb2#
- 1...e3
- 2.Qxe3#
- 1...Sc1
- 2.Qb2#
- 1...Se1
- 2.Qb2#
- 1...Sb2
- 2.Qxb2#
- 1...c4!
- threat
- 1.Qg4?
- threat
- 2.Rfe8#
- 2.Qe6#
- 1...Bxg4
- 2.Sxg6#
- 1...Sxf4
- 2.Qxf4#
- 1...e3
- 2.Sfxd3#
- 1...Sf2!
- threat
- 1.Qxh5?
- threat
- 2.Sxg6#
- 2.Qh8#
- 1...Sxf4
- 2.Qh8#
- 1...gxh5
- 2.Sg6#
- 1...Sf2
- 2.Qh8#
- 1...e3!
- threat
- 1.Qc1?
- threat
- 2.Qc3#
- 1...cxb4
- 2.Qc7#
- 1...e3
- 2.Qxe3#
- 1...Sxc1!
- threat
- 1.Qe1?
- threat
- 2.Sbxd3#
- 2.Sfxd3#
- 2.Qc3#
- 1...Sxb4
- 2.Qc3#
- 1...Sxf4
- 2.Qc3#
- 1...cxb4
- 2.Sxd3#
- 1...Sf2
- 2.Qc3#
- 1...e3
- 2.Qxe3#
- 1...Be2
- 2.Sxg6#
- 2.Qc3#
- 1...Sc1
- 2.Qc3#
- 1...Sb2
- 2.Qc3#
- 1...c4
- 2.Qc3#
- 1...Sxe1!
- threat
- 1.Qd2?
- threat
- 2.Qc3#
- 1...e3
- 2.Qxe3#
- 1...cxb4!
- threat
- 1.Qxd3?
- threat
- 2.Qc3#
- 1...cxb4
- 2.Bd4#
- 2.Qd4#
- 1...e3
- 2.Qxe3#
- 1...exd3!
- threat
- 1.Bxc5?
- Keys
- 1.Qa4!
- threat
- 2.Qe8#
- 1...Sxf4
- 2.Qa1#
- 1...Sf2
- 2.Qa1#
- 1...e3
- 2.Sbxd3#
- 1...Bg4
- 2.Sxg6#
- 1...b5
- 2.Sc6#
- threat
- 1.Qa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- B(e);N_GUARD,XQ(B)::S(E),XP(f)
- B(e);N_GUARD::S(E),XP(f)
- P(g);N_GUARD::S(D)
- Tries
- Try
- B(C);XP(c)
- Threat
- R(H)
- Vars
- B(e);N_GUARD::S(E),XP(f)
- Refutation
- S(a);XB(C)
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- P(c);OGATE,XS(D)::QAB(B)
- Refutation
- P(b);
- Try
- Q(B);P_PINP(b)
- Threat
- DUALS(2)
- Vars
- B(e);N_GUARD,N_SPINP(b),XQ(B)::S(E),XP(f)
- S(a);N_GUARD,XS(D)::QAB(B)
- S(a);N_GUARD,XS(E)::QAB(B)
- P(c);XS(D)::S(E),XS(a)
- S(a);N_GUARD::QAB(B)
- P(b);OGATEB::QAR2(B),XP(b)
- S(a);N_GUARD::QAB(B),XS(a)
- Refutation
- P(c);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(e);N_GUARD,XQ(B)::S(E),XP(f)
- S(a);OGATE,XS(E)::QAB1(B),XS(a)
- P(b);N_GUARD::S(E),XS(a)
- Refutation
- S(a);
- Try
- Q(B);XB(e)
- Threat
- DUALS(2)
- Vars
- S(a);XS(E)::QAB(B)
- P(f);XQ(B)::S(E)
- S(a);::QAB(B)
- Refutation
- P(b);
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- P(c);OGATE,XS(D)::QAB(B)
- P(b);OGATEB::QAR2(B),XP(b)
- Refutation
- S(a);XQ(B)
- Try
- Q(B);P_PINP(b)
- Threat
- DUALS(3)
- Vars
- S(a);XS(D)::QAB(B)
- S(a);XS(E)::QAB(B)
- P(c);XS(D)::S(E),XS(a)
- S(a);::QAB(B)
- P(b);OGATEB::QAR2(B),XP(b)
- P(c);::QAB(B)
- Refutation
- S(a);N_SPINP(b),XQ(B)
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- P(b);OGATEB::QAR2(B),XP(b)
- Refutation
- P(c);XS(D)
- Try
- Q(B);XS(a)
- Threat
- QAB(B)
- Vars
- P(b);OGATEB::QAR2(B),XP(b)
- Refutation
- P(b);XQ(B)
- Try
- Actual
- Q(B);
- Threat
- QAR(B)
- Vars
- S(a);N_GUARD,XS(E)::QAB(B)
- S(a);N_GUARD::QAB(B)
- P(b);N_GUARD::S(D),XS(a)
- B(e);N_GUARD::S(E),XP(f)
- P(g);N_GUARD::S(D)
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).