MESON Chess Problem Database
Problem Display
PID: 102821 (6n1/1B1Pp3/2K2p1r/PR1N1pn1/2p1k1p1/2P1P1B1/q2bP3/6Q1 w - - 0 1)
Dyachuk, Vasyl Vasilovich
2nd Prize, Sachsische Zeitung, 2002
#2
11 + 11
| 23 | Die Schwalbe | 2008 |
| 15174 | FIDE Album (2001-2003) | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qxb1#
- 1...Qa3
- 2.Qb1#
- 1...Qxa5
- 2.Qb1#
- 1...Bxc3
- 2.Sxc3#
- 1...Bxe3
- 2.Qxe3#
- 1...Sh3
- 2.Qh1#
- 2.Qg2#
- 1...Se6
- 2.Qg2#
- 1...Sf7
- 2.Qg2#
- 1...Sh7
- 2.Qg2#
- 1...Qb1
- Tries
- 1.Kb6?
- threat
- 2.Sb4#
- 2.Sf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Sxe7#
- 1...Bxe3+
- 2.Sxe3#
- 2.Qxe3#
- 1...f4
- 2.Sb4#
- 2.Sxf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Sxe7#
- 1...e5
- 2.Sb4#
- 2.Sf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 1...e6
- 2.Sb4#
- 2.Sf4#
- 2.Sxf6#
- 2.Sc7#
- 2.Se7#
- 1...Qxa5+!
- threat
- 1.Kc7?
- threat
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sxf6#
- 2.Sxe7#
- 1...Qxa5+
- 2.Sb6#
- 1...f4
- 2.Sb4#
- 2.Sxf4#
- 2.Sb6#
- 2.Sxf6#
- 2.Sxe7#
- 1...e5
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sxf6#
- 2.Se7#
- 1...e6
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sxf6#
- 2.Se7#
- 1...Se6+!
- threat
- 1.Sf4?
- threat
- 2.Kb6#
- 2.Kc7#
- 1...Bxe3
- 2.Kc7#
- 1...Se6
- 2.Kb6#
- 1...Qxa5!
- threat
- 1.Sb6?
- threat
- 2.Kc5#
- 2.Kc7#
- 1...Bxe3
- 2.Kc7#
- 1...Qa3
- 2.Kc7#
- 1...f4
- 2.Kc7#
- 1...Se6!
- threat
- 1.Sxf6+?
- 1...Sxf6
- 2.Re5#
- 1...exf6
- 2.Kc5#
- 2.Kb6#
- 2.Kd6#
- 2.Kc7#
- 1...Rxf6+!
- 1...Sxf6
- 1.Sc7?
- threat
- 2.Kc5#
- 2.Kb6#
- 1...Qxa5
- 2.Kc5#
- 1...Qa3
- 2.Kb6#
- 1...Se6
- 2.Kb6#
- 1...f4
- 2.Kb6#
- 1...Bxe3!
- threat
- 1.Sxe7?
- threat
- 2.Kc5#
- 2.Kb6#
- 2.Kd6#
- 2.Kc7#
- 1...Qxa5
- 2.Kc5#
- 2.Kd6#
- 1...Bxe3
- 2.Kd6#
- 2.Kc7#
- 1...Qa3
- 2.Kb6#
- 2.Kc7#
- 1...Se6
- 2.Kb6#
- 2.Kd6#
- 1...Sf7
- 2.Kc5#
- 2.Kb6#
- 2.Kc7#
- 1...f4
- 2.Kb6#
- 2.Kd6#
- 2.Kc7#
- 1...Sxe7+!
- threat
- 1.Qb1+?
- 1...Qc2
- 2.Qxc2#
- 1...Qxb1!
- 1...Qc2
- 1.Kb6?
- Keys
- 1.Sb4!
- threat
- 2.Kc5#
- 2.Kb6#
- 2.Kc7#
- 1...Qxa5
- 2.Kc5#
- 1...Bxe3
- 2.Kc7#
- 1...Se6
- 2.Kb6#
- 1...f4
- 2.Kb6#
- 2.Kc7#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(a);N_GUARD::QAB(A),XQ(a)
- Q(a);N_GUARD::QAB(A)
- Q(a);N_GUARD,XP(F)::QAB(A)
- B(b);XP(C)::S(H),XB(b)
- B(b);OGATE,XP(D)::QAR1(A),XB(b)
- S(g);N_GUARD::QAB(A)
- Tries
- Try
- K(I);P-FLIGHT
- Threat
- DUALS(5)
- Refutation
- Q(a);CHECK,XP(F)
- Try
- K(I);P-FLIGHT
- Threat
- DUALS(5)
- Vars
- Q(a);CHECK,XP(F)::B(J)+S(H)
- Refutation
- S(g);CHECK
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- B(b);XP(D)::B(J)+K(I)
- S(g);::B(J)+K(I)
- Refutation
- Q(a);XP(F)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- B(b);XP(D)::B(J)+K(I)
- Q(a);::B(J)+K(I)
- P(f);::B(J)+K(I)
- Refutation
- S(g);
- Try
- S(H);CHECK,P_SPINS(H),XP(h)
- Vars
- S(k);XS(H)::R1(G)
- Refutation
- R(i);CHECK,XS(H)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(F)::B(J)+K(I)
- Q(a);::B(J)+K(I)
- S(g);::B(J)+K(I)
- P(f);::B(J)+K(I)
- Refutation
- B(b);XP(D)
- Try
- S(H);XP(j)
- Threat
- DUALS(4)
- Refutation
- S(k);CHECK,XS(H)
- Try
- Q(A);CHECK
- Vars
- Q(a);N_GUARD,P_SPINQ(a)::QAB(A),XQ(a)
- Refutation
- Q(a);XQ(A)
- Try
- Actual
- S(H);
- Threat
- DUALS(3)
- Vars
- Q(a);XP(F)::B(J)+K(I)
- B(b);XP(D)::B(J)+K(I)
- S(g);::B(J)+K(I)
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).