MESON Chess Problem Database
Problem Display
PID: 169096 (2N3r1/K3P2n/R7/2pNk2p/3RP1bQ/3PB1P1/5P1b/5q2 w - - 0 1)
Stojnic, Dragan
3rd HM., SuperProblem 103. TT, 2014
#2
12 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qe2
- 2.f4#
- 1...Qg2
- 2.f4#
- 1...Qxd3
- 2.f4#
- 1...Qh3
- 2.f4#
- 1...Qa1
- 2.f4#
- 1...Qb1
- 2.f4#
- 1...Qc1
- 2.f4#
- 1...Qd1
- 2.f4#
- 1...Qe1
- 2.f4#
- 1...Qg1
- 2.f4#
- 1...Qh1
- 2.f4#
- 1...Bxg3
- 2.Qxg3#
- 1...Bd1
- 2.Qf4#
- 1...Be2
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Bh3
- 2.Qf4#
- 1...Bf5
- 2.Qf4#
- 1...Be6
- 2.Qf4#
- 1...Bd7
- 2.Qf4#
- 1...Bxc8
- 2.Qf4#
- 1...Sf6
- 2.Qxf6#
- 1...Sf8
- 2.Qf6#
- 1...cxd4
- 2.Bf4#
- 1...Qe2
- Tries
- 1.Sc3?
- threat
- 2.Rd5#
- 1...Qxd3
- 2.f4#
- 1...cxd4
- 2.Bf4#
- 1...Be6
- 2.Qf4#
- 1...Sf6
- 2.Qxf6#
- 1...Rd8!
- threat
- 1.Sb4?
- threat
- 2.Rd5#
- 1...Qxd3
- 2.Sxd3#
- 2.f4#
- 1...cxd4
- 2.Bf4#
- 1...Be6
- 2.Sc6#
- 2.Qf4#
- 1...Sf6
- 2.Qxf6#
- 1...Rd8!
- threat
- 1.Sf6?
- threat
- 2.Rd5#
- 1...Qxd3
- 2.f4#
- 1...Sxf6
- 2.Qxf6#
- 1...cxd4
- 2.Bf4#
- 1...Be6
- 2.Qf4#
- 1...Rd8!
- threat
- 1.Sc7?
- threat
- 2.Rd5#
- 1...Qxd3
- 2.f4#
- 1...cxd4
- 2.Bf4#
- 2.Ra5#
- 1...Be6
- 2.Rxe6#
- 2.Qf4#
- 1...Sf6
- 2.Qxf6#
- 1...Rd8!
- threat
- 1.Re6+?
- 1...Bxe6
- 2.Qf4#
- 1...Kxe6!
- 1...Bxe6
- 1.Qxg4?
- threat
- 2.Re6#
- 2.Qf5#
- 2.Qe6#
- 2.Qf4#
- 1...Qxf2
- 2.Re6#
- 2.Qe6#
- 1...Rxg4
- 2.e8Q#
- 2.e8R#
- 1...Bxg3
- 2.Re6#
- 2.Qf5#
- 2.Qe6#
- 1...Qh3
- 2.Re6#
- 2.Qf4#
- 2.f4#
- 1...Qa1
- 2.Qf5#
- 2.Qe6#
- 2.Qf4#
- 2.f4#
- 1...Rg5
- 2.Re6#
- 2.Qe6#
- 2.Qf4#
- 2.e8Q#
- 2.e8R#
- 1...Rg6
- 2.Qf5#
- 2.Qf4#
- 1...Rf8
- 2.Re6#
- 2.Qe6#
- 1...Sg5
- 2.Qf5#
- 2.Qf4#
- 1...Sf8
- 2.Qf5#
- 2.Qf4#
- 1...hxg4!
- threat
- 1.e8Q+?
- 1...Be6
- 2.Rxe6#
- 2.Qf4#
- 2.Qxe6#
- 1...Rxe8!
- 1...Be6
- 1.e8R+?
- 1...Be6
- 2.Raxe6#
- 2.Rexe6#
- 2.Qf4#
- 1...Rxe8!
- 1...Be6
- 1.Sc3?
- Keys
- 1.Sf4!
- threat
- 2.Rd5#
- 1...Qxd3
- 2.Sxd3#
- 1...cxd4
- 2.Ra5#
- 1...Rd8
- 2.Sg6#
- 1...Be6
- 2.Rxe6#
- 1...Sf6
- 2.Qxf6#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 19
- Sets
- Q(a);N_GUARD::P(A)
- Q(a);N_GUARD,XP(B)::P(A)
- Q(a);N_GUARD,P_PINR(I)::P(A)
- B(b);OGATE,XP(D)::QAB(G),XB(b)
- B(c);OGATE::QAB1(G)
- B(c);OGATE,XS(L)::QAB1(G)
- S(g);N_GUARD::QAB1(G),XS(g)
- S(g);N_GUARD::QAB1(G)
- P(d);SBLOCK,XR(E)::B(C)
- Tries
- Try
- S(H);
- Threat
- R1(E)
- Vars
- Q(a);N_GUARD,XP(B)::P(A)
- P(d);SBLOCK,XR(E)::B(C)
- B(c);OGATE::QAB1(G)
- S(g);N_GUARD::QAB1(G),XS(g)
- Refutation
- R(h);
- Try
- S(H);
- Threat
- R1(E)
- Vars
- P(d);SBLOCK,XR(E)::B(C)
- S(g);N_GUARD::QAB1(G),XS(g)
- Refutation
- R(h);
- Try
- S(H);
- Threat
- R1(E)
- Vars
- Q(a);N_GUARD,XP(B)::P(A)
- S(g);OGATE,XS(H)::QAB1(G),XS(g)
- P(d);SBLOCK,XR(E)::B(C)
- B(c);OGATE::QAB1(G)
- Refutation
- R(h);
- Try
- S(H);
- Threat
- R1(E)
- Vars
- Q(a);N_GUARD,XP(B)::P(A)
- S(g);N_GUARD::QAB1(G),XS(g)
- Refutation
- R(h);
- Try
- R(I);CHECK
- Vars
- B(c);OGATE,SBLOCK,XR(I)::QAB1(G)
- Refutation
- K(e);P-FLIGHT,XR(I)
- Try
- Q(G);XB(c)
- Threat
- DUALS(4)
- Vars
- R(h);N_GUARD,XQ(G)::P=Q
- Refutation
- P(f);XQ(G)
- Try
- P(K);CHECK
- Refutation
- R(h);XQ(K)
- Try
- P(K);CHECK
- Refutation
- R(h);XR(K)
- Try
- Actual
- S(H);
- Threat
- R1(E)
- Vars
- Q(a);XP(B)::S(H),XQ(a)
- P(d);OGATEB,XR(E)::R(I)
- R(h);N_GUARD::S(H)
- B(c);N_GUARD::R1(I),XB(c)
- S(g);N_GUARD::QAB1(G),XS(g)
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).