MESON Chess Problem Database
Problem Display
PID: 55956 (n1b1R2K/2q2QP1/4PP1p/R1Pk1N2/B4Bp1/2PPP3/2r5/4r3 w - - 0 1)
Dyachuk, Vasyl Vasilovich
3rd Comm., Probleemblad, 2004
#2
14 + 8
| 102 | Probleemblad | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qxf4
- 2.c6#
- 1...Qe5
- 2.Se7#
- 2.c6#
- 1...Qb6
- 2.Se7#
- 2.cxb6#
- 1...Qd6
- 2.cxd6#
- 1...Qb8
- 2.Se7#
- 1...Qxc5
- 2.Se7#
- 1...Qc6
- 2.Se7#
- 2.Bb3#
- 1...Qd7
- 2.c6#
- 2.exd7#
- 1...Qe7
- 2.Sxe7#
- 1...Qxf7
- 2.c6#
- 1...Ra1
- 2.e4#
- 1...Rb1
- 2.e4#
- 1...Rec1
- 2.e4#
- 1...Rd1
- 2.e4#
- 1...Rf1
- 2.e4#
- 1...Rg1
- 2.e4#
- 1...Rh1
- 2.e4#
- 1...Rxe3
- 2.Sxe3#
- 1...Ra2
- 2.c4#
- 1...Rb2
- 2.c4#
- 1...Rd2
- 2.c4#
- 1...Re2
- 2.c4#
- 1...Rf2
- 2.c4#
- 1...Rg2
- 2.c4#
- 1...Rh2
- 2.c4#
- 1...Ba6
- 2.e7#
- 1...Bxe6
- 2.Qxe6#
- 1...Bb7
- 2.e7#
- 1...Bd7
- 2.Se7#
- 2.exd7#
- 1...Sb6
- 2.c6#
- 1...Qxf4
- Tries
- 1.Sd6?
- threat
- 2.Qh5#
- 1...Qxd6
- 2.cxd6#
- 1...Qxf7
- 2.c6#
- 1...Bxe6
- 2.Qxe6#
- 1...Qe7
- 2.c6#
- 1...Rh1
- 2.e4#
- 1...Rh2
- 2.c4#
- 1...h5
- 2.Qxh5#
- 1...Rxe3!
- threat
- 1.Bc6+?
- 1...Qxc6
- 2.Se7#
- 1...Kxc6!
- 1...Qxc6
- 1.Bxc7?
- threat
- 2.Se7#
- 2.c6#
- 1...Rxc3
- 2.Se7#
- 1...Rb1
- 2.Se7#
- 2.e4#
- 1...Rb2
- 2.Se7#
- 2.c4#
- 1...Ba6
- 2.Se7#
- 2.Rd8#
- 2.Qd7#
- 2.e7#
- 1...Sxc7!
- threat
- 1.Rxc8?
- threat
- 2.e7#
- 1...Qd8+
- 2.Rxd8#
- 1...Qxf4
- 2.c6#
- 1...Qxf7
- 2.Bb3#
- 1...Rxe3
- 2.Sxe3#
- 1...Qe5
- 2.Se7#
- 2.Bb3#
- 2.Bc6#
- 2.c6#
- 1...Qb6
- 2.Se7#
- 2.cxb6#
- 1...Qd6
- 2.Bb3#
- 2.cxd6#
- 1...Qc6
- 2.Se7#
- 2.Bb3#
- 2.Bxc6#
- 1...Qd7
- 2.Bb3#
- 2.Qxd7#
- 2.c6#
- 2.exd7#
- 1...Qe7
- 2.Sxe7#
- 2.Bb3#
- 2.Bc6#
- 1...Qxc8+!
- threat
- 1.Rd8+?
- 1...Qd6
- 2.Se7#
- 2.Rxd6#
- 2.cxd6#
- 2.c6#
- 1...Qd7
- 2.Se7#
- 2.c6#
- 2.exd7#
- 2.e7#
- 1...Bd7
- 2.Se7#
- 2.exd7#
- 2.e7#
- 1...Qxd8+!
- 1...Qd6
- 1.Qxc7?
- threat
- 2.Bb3#
- 2.Bc6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc6#
- 2.c6#
- 1...Rxe3
- 2.Sxe3#
- 2.Bb3#
- 2.Bc6#
- 2.Qd6#
- 2.Qc6#
- 2.c6#
- 1...Rxc3
- 2.Bc6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc6#
- 1...Rb1
- 2.Bc6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc6#
- 2.e4#
- 1...Rb2
- 2.Bc6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc6#
- 2.c4#
- 1...Ba6
- 2.Bc6#
- 2.Qe5#
- 2.Qd6#
- 2.Qd8#
- 2.Qc6#
- 2.Qd7#
- 1...Bb7
- 2.Bb3#
- 2.Qe5#
- 2.Qd6#
- 2.Qd8#
- 2.Qxb7#
- 2.Qd7#
- 2.c6#
- 1...Bd7
- 2.Bb3#
- 2.Qe5#
- 2.Qd6#
- 2.Qxd7#
- 2.c6#
- 1...Sb6
- 2.Bc6#
- 2.Qe5#
- 2.Qd6#
- 2.Qc6#
- 2.cxb6#
- 2.c6#
- 1...Sxc7!
- threat
- 1.Qd7+?
- 1...Qd6
- 2.Se7#
- 2.Bb3#
- 2.Bc6#
- 2.Qxd6#
- 2.cxd6#
- 2.c6#
- 1...Qxd7
- 2.c6#
- 1...Bxd7!
- 1...Qd6
- 1.Sd6?
- Keys
- 1.Qh5!
- threat
- 2.Sd6#
- 1...Qxg7+
- 2.Sxg7#
- 1...Qxf4
- 2.c6#
- 1...Rxe3
- 2.Sxe3#
- 1...Bxe6
- 2.Se7#
- 1...Qe7
- 2.Sd4#
- 1...Qe5
- 2.c6#
- 1...Qd6
- 2.Sxd6#
- 2.cxd6#
- 1...Qf7
- 2.c6#
- 1...Rh1
- 2.e4#
- 1...Rh2
- 2.c4#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 18
- Sets
- Q(f);N_GUARD,XB(E)::R(F)+P(G)
- Q(f);OGATE::R(F)+P(G),XQ(f)
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD,P_SPINQ(f),XP(G)::S(H)
- Q(f);N_GUARD::S(H),XQ(f)
- Q(f);N_GUARD,XQ(K)::R(F)+P(G)
- R(a);N_GUARD::P(C)
- R(a);XP(C)::S(H),XR(a)
- R(b);N_GUARD::P(A)
- B(h);N_GUARD::QAB(K)+P(I)
- B(h);OGATE,P_SPINB(h),XP(I)::QAB1(K),XB(h)
- S(g);S_CUTQ(f)::R(F)+P(G)
- Tries
- Try
- S(H);
- Threat
- QAR(K)
- Vars
- Q(f);OGATE,XS(H)::R(F)+P(G),XQ(f)
- Q(f);N_GUARD,XQ(K)::R(F)+P(G)
- B(h);OGATE,P_SPINB(h),XP(I)::QAB1(K),XB(h)
- Q(f);N_GUARD::R(F)+P(G)
- R(a);N_GUARD::P(C)
- R(b);N_GUARD::P(A)
- P(e);::QAR(K),XP(e)
- Refutation
- R(a);XP(C)
- Try
- B(D);CHECK
- Vars
- Q(f);XB(D)::S(H)
- Refutation
- K(d);S_FLIGHT,XB(D)
- Try
- B(E);XQ(f)
- Threat
- DUALS(2)
- Vars
- R(b);XP(A)::S(H)
- Refutation
- S(g);XB(E)
- Try
- R(M);XB(h)
- Threat
- QAB(K)+P(I)
- Vars
- Q(f);CHECK,N_GUARD::R(M),XQ(f)
- Q(f);N_GUARD,XB(E)::R(F)+P(G)
- Q(f);XQ(K)::B(D)
- R(a);XP(C)::S(H),XR(a)
- Refutation
- Q(f);CHECK,XR(M)
- Try
- R(M);CHECK
- Refutation
- Q(f);CHECK,XR(M)
- Try
- Q(K);XQ(f)
- Threat
- DUALS(6)
- Refutation
- S(g);XQ(K)
- Try
- Q(K);CHECK
- Vars
- Q(f);XQ(K)::R(F)+P(G)
- Refutation
- B(h);XQ(K)
- Try
- Actual
- Q(K);
- Threat
- QAR(K)+S(H)
- Vars
- Q(f);CHECK,XP(L)::QAR(K)+S(H),XQ(f)
- Q(f);N_GUARD,XB(E)::R(F)+P(G)
- R(a);XP(C)::QAR(K)+S(H),DCHECK,XR(a)
- B(h);SBLOCK,XP(I)::QAR(K)+S(H),DCHECK
- Q(f);N_GUARD::QAR(K)+S(H)
- Q(f);N_GUARD::R(F)+P(G)
- R(a);N_GUARD::P(C)
- R(b);N_GUARD::P(A)
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).