MESON Chess Problem Database
Problem Display
PID: 240587 (1n4n1/2pP1B2/3BK2p/5p2/2kpN2Q/1R2P3/P1pp3b/3q1r2 w - - 0 1)
Dyachuk, Vasyl Vasilovich
Thema Danicum, 1997
#2
9 + 12
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qf3
- 2.Sxd2#
- 1...Qg4
- 2.Sxd2#
- 1...Qh5
- 2.Sxd2#
- 1...Qa1
- 2.Sxd2#
- 1...Qb1
- 2.Sxd2#
- 1...Re1
- 2.Kxf5#
- 1...Rg1
- 2.Kxf5#
- 1...Rh1
- 2.Kxf5#
- 1...Rf4
- 2.Ke5#
- 1...Bg1
- 2.Ke5#
- 1...Bf4
- 2.Kxf5#
- 1...Be5
- 2.Kxe5#
- 1...Sxd7
- 2.Kxd7#
- 1...Sf6
- 2.Kxf6#
- 1...Se7
- 2.Kxe7#
- 1...dxe3
- 2.Sxd2#
- 1...d3
- 2.Sxd2#
- 2.Rb4#
- 1...f4
- 2.Ke5#
- 2.Kf5#
- 1...Qf3
- Tries
- 1.Sf2?
- threat
- 2.Kxf5#
- 2.Qxd4#
- 1...Rxf2
- 2.Qxd4#
- 1...Bxd6
- 2.Qxd4#
- 1...cxd6
- 2.Qxd4#
- 1...Qf3
- 2.Qxd4#
- 1...Qh5
- 2.Qxd4#
- 1...Qa1
- 2.Kxf5#
- 1...Bf4
- 2.Kxf5#
- 1...Be5
- 2.Kxe5#
- 2.Kxf5#
- 1...Sc6
- 2.Kxf5#
- 1...Sf6
- 2.Kxf6#
- 2.Qxd4#
- 1...Se7
- 2.Kxe7#
- 2.Qxd4#
- 1...f4
- 2.Ke5#
- 2.Kf5#
- 1...c5
- 2.Kxf5#
- 1...Qg4!
- threat
- 1.Sg3?
- threat
- 2.Ke5#
- 2.Qxd4#
- 1...Bxg3
- 2.Qxd4#
- 1...Sxd7
- 2.Kxd7#
- 2.Qxd4#
- 1...cxd6
- 2.Kxd6#
- 2.Qxd4#
- 1...Qg4
- 2.Ke5#
- 1...Qf3
- 2.Qxd4#
- 1...Qh5
- 2.Qxd4#
- 1...Qa1
- 2.Ke5#
- 1...Rf4
- 2.Ke5#
- 1...Sf6
- 2.Kxf6#
- 2.Qxd4#
- 1...Se7
- 2.Kxe7#
- 2.Qxd4#
- 1...f4
- 2.Ke5#
- 2.Kf5#
- 1...c5
- 2.Ke5#
- 1...Sc6!
- threat
- 1.Sf2?
- Keys
- 1.Qf4!
- threat
- 2.Ke5#
- 2.Kxf5#
- 1...Rxf4
- 2.Ke5#
- 1...Bxf4
- 2.Kxf5#
- 1...Sxd7
- 2.Kxf5#
- 2.Kxd7#
- 1...dxe3
- 2.Ke5#
- 2.Sxd2#
- 1...fxe4
- 2.Ke5#
- 2.Kf5#
- 1...cxd6
- 2.Kxd6#
- 1...Qg4
- 2.Ke5#
- 2.Sxd2#
- 1...Qh5
- 2.Sxd2#
- 1...Sc6
- 2.Kxf5#
- 1...Sf6
- 2.Kxf6#
- 1...Se7
- 2.Kxe7#
- threat
- 1.Qf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(a);N_GUARD::S(D),XP(d)
- R(b);::B(I)+K(G),XP(h)
- R(b);::B(I)+K(G)
- B(e);::B(I)+K(G)
- B(e);::B(I)+K(G),XP(h)
- B(e);::B(I)+K(G),XB(e)
- S(k);XP(H)::B(I)+K(G),XS(k)
- S(l);::B(I)+K(G),XS(l)
- P(g);XP(C)::QAR(E)+S(D),DCHECK,XP(d)
- Tries
- Try
- S(D);P_PINP(g)
- Threat
- DUALS(2)
- Vars
- R(b);XS(D)::QAR1(E),XP(g)
- B(e);XB(F)::QAR1(E),XP(g)
- P(j);XB(F)::QAR1(E),XP(g)
- Q(a);::QAR1(E),XP(g)
- Q(a);::B(I)+K(G),XP(h)
- B(e);N_SPINP(g)::B(I)+K(G),XP(h)
- S(k);::B(I)+K(G),XP(h)
- P(j);::B(I)+K(G),XP(h)
- Refutation
- Q(a);N_SPINP(g)
- Try
- S(D);P_PINP(g)
- Threat
- DUALS(2)
- Vars
- B(e);XS(D)::QAR1(E),XP(g)
- Q(a);N_SPINP(g)::B(I)+K(G)
- Q(a);::QAR1(E),XP(g)
- Q(a);::B(I)+K(G)
- R(b);N_SPINP(g)::B(I)+K(G)
- P(j);::B(I)+K(G)
- Refutation
- S(k);
- Try
- Actual
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(b);XQ(E)::B(I)+K(G)
- B(e);XQ(E)::B(I)+K(G),XP(h)
- P(j);XB(F)::B(I)+K(G),XP(j)
- Q(a);N_GUARD::S(D),XP(d)
- S(k);::B(I)+K(G),XP(h)
- S(l);::B(I)+K(G),XS(l)
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).