MESON Chess Problem Database
Problem Display
PID: 238697 (2rR4/4Q3/n2N4/2pPP1p1/3kB2q/KPpN1R2/1Pp1rP2/n4b2 w - - 0 1)
Dyachuk, Vasyl Vasilovich
1st HM., HOW JT, 2009-2010
#2
12 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxe4
- 2.Sb5#
- 1...Re3
- 2.fxe3#
- 1...Rxe4
- 2.Sb5#
- 2.Sf5#
- 1...Qxe4
- Tries
- 1.Sc1?
- threat
- 2.Rd3#
- 2.bxc3#
- 1...Qxe4
- 2.Sb5#
- 1...Rxf2
- 2.bxc3#
- 1...Rxe4
- 2.Sf5#
- 1...cxb2
- 2.Rd3#
- 1...Qg3
- 2.bxc3#
- 1...Qh3
- 2.bxc3#
- 1...Re1
- 2.bxc3#
- 1...Rd2
- 2.bxc3#
- 1...Re3
- 2.fxe3#
- 1...Sb4
- 2.bxc3#
- 1...c4!
- threat
- 1.Se1?
- threat
- 2.Rd3#
- 2.bxc3#
- 1...Qxe4
- 2.Sb5#
- 1...Rxe1
- 2.bxc3#
- 1...Rxf2
- 2.bxc3#
- 1...Rxe4
- 2.Sf5#
- 1...cxb2
- 2.Rd3#
- 1...c1Q
- 2.Rd3#
- 1...c1S
- 2.bxc3#
- 1...c1B
- 2.Rd3#
- 1...c1R
- 2.Rd3#
- 1...Qg3
- 2.bxc3#
- 1...Qh3
- 2.bxc3#
- 1...Rd2
- 2.bxc3#
- 1...Re3
- 2.fxe3#
- 1...Sb4
- 2.bxc3#
- 1...c4!
- threat
- 1.Sf4?
- threat
- 2.Rd3#
- 2.bxc3#
- 1...Rxf2
- 2.bxc3#
- 1...Rxe4
- 2.Sf5#
- 2.bxc3#
- 1...cxb2
- 2.Rd3#
- 1...c1Q
- 2.Rd3#
- 1...c1S
- 2.bxc3#
- 1...c1B
- 2.Rd3#
- 1...c1R
- 2.Rd3#
- 1...Qg3
- 2.bxc3#
- 1...Qh3
- 2.bxc3#
- 1...Re1
- 2.bxc3#
- 1...Rd2
- 2.bxc3#
- 1...Re3
- 2.fxe3#
- 1...Sb4
- 2.bxc3#
- 1...c4!
- threat
- 1.Sc1?
- Keys
- 1.Sxc5!
- threat
- 2.Sb5#
- 2.Sf5#
- 1...Kxc5
- 2.Qa7#
- 1...Qxe4
- 2.Sb5#
- 1...Rxf2
- 2.Sf5#
- 1...Rxe4
- 2.Sf5#
- 1...Rxc5
- 2.Rd3#
- 1...Sxb3
- 2.Sxb3#
- 1...Sxc5
- 2.bxc3#
- 1...Qh3
- 2.Sb5#
- 1...Qf4
- 2.Sb5#
- 1...Qg4
- 2.Sb5#
- 1...Qh7
- 2.Sb5#
- 1...Re1
- 2.Sf5#
- 1...Rd2
- 2.Sf5#
- 1...Re3
- 2.Sf5#
- 1...Rb8
- 2.Sf5#
- 1...Bh3
- 2.Sb5#
- 1...Sc7
- 2.Sf5#
- threat
- 1.Sxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 15
- REMOVED MATES = 0
- Sets
- Q(g);SBLOCK,XB(G)::S(J)
- R(d);OGATE::P(B),XR(d)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(g);SBLOCK,XB(G)::S(J)
- R(d);XP(B)::P(A),XP(e)
- R(d);SBLOCK,XB(G)::S(J)
- P(e);XP(A)::R1(F)
- Q(g);::P(A),XP(e)
- R(d);::P(A),XP(e)
- R(d);OGATE::P(B),XR(d)
- S(j);::P(A),XP(e)
- Refutation
- P(h);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(g);SBLOCK,XB(G)::S(J)
- R(d);XS(E)::P(A),XP(e)
- R(d);XP(B)::P(A),XP(e)
- R(d);SBLOCK,XB(G)::S(J)
- P(e);XP(A)::R1(F)
- P(c);P_PINP(A)::R1(F)
- P(c);::P(A),XP(e)
- P(c);::R1(F)
- Q(g);::P(A),XP(e)
- R(d);::P(A),XP(e)
- R(d);OGATE::P(B),XR(d)
- S(j);::P(A),XP(e)
- Refutation
- P(h);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(d);XP(B)::P(A),XP(e)
- P(e);XP(A)::R1(F)
- P(c);P_PINP(A)::R1(F)
- P(c);::P(A),XP(e)
- P(c);::R1(F)
- Q(g);::P(A),XP(e)
- R(d);::P(A),XP(e)
- R(d);OGATE::P(B),XR(d)
- S(j);::P(A),XP(e)
- Refutation
- P(h);
- Try
- Actual
- S(E);XP(h)
- Threat
- DUALS(2)
- Vars
- K(f);OGATEB,S_FLIGHT,XS(E)::QAB(K)
- Q(g);XB(G)::S(J)
- R(d);XP(B)::S(J)
- R(d);XB(G)::S(J)
- R(k);SBLOCK,XS(E)::R1(F)
- S(a);XP(D)::S(E),XS(a)
- S(j);SBLOCK,XS(E)::P(A),XP(e)
- Q(g);::S(J)
- R(d);::S(J)
- R(k);::S(J)
- B(b);::S(J)
- S(j);::S(J)
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).