MESON Chess Problem Database
Problem Display
PID: 139868 (3q4/3Q4/1pP5/4pPp1/2PNk3/nN4R1/5R2/KnBBr2b w - - 0 1)
Schogt, Hans
Schogt, JCM
03. Kwik-Toernooi, 1974
#2
11 + 9
| 102 | Probleemblad | 1974 |
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.Qd5#
- 1...Qc7
- 2.Qd5#
- 1...Qe7
- 2.Qd5#
- 1...Qa8
- 2.Qd5#
- 1...Qb8
- 2.Qd5#
- 1...Qc8
- 2.Qd5#
- 1...Qe8
- 2.Qd5#
- 1...Qf8
- 2.Qd5#
- 1...Qh8
- 2.Qd5#
- 1...Rxd1
- 2.Re2#
- 2.Re3#
- 1...Rf1
- 2.Re2#
- 2.Re3#
- 1...Rg1
- 2.Re2#
- 2.Re3#
- 1...Re2
- 2.Rxe2#
- 1...Re3
- 2.Rxe3#
- 1...Sd2
- 2.Sxd2#
- 1...Sc3
- 2.Sd2#
- 1...Sc2+
- 2.Bxc2#
- 1...Sxc4
- 2.Bc2#
- 1...Sb5
- 2.Bc2#
- 1...exd4
- 2.Qe6#
- 1...b5
- 2.Sc5#
- 1...Qf6
- Tries
- 1.Sc2?
- threat
- 2.Rg4#
- 1...Sxc2+
- 2.Bxc2#
- 1...Rg1
- 2.Re2#
- 2.Re3#
- 1...Bf3
- 2.Bxf3#
- 1...g4
- 2.Rxg4#
- 1...Qxd7!
- threat
- 1.Se2?
- threat
- 2.Re3#
- 2.Rg4#
- 1...Sc2+
- 2.Bxc2#
- 1...Qxd7
- 2.Re3#
- 1...Rxe2
- 2.Rxe2#
- 2.Rg4#
- 1...Sxc4
- 2.Bc2#
- 2.Rg4#
- 1...Rg1
- 2.Re3#
- 1...Sd2
- 2.Sc3#
- 2.Sxd2#
- 1...g4
- 2.Re3#
- 2.Rxg4#
- 1...Bf3!
- threat
- 1.Sb5?
- threat
- 2.Sd6#
- 2.Rg4#
- 1...Sc2+
- 2.Bxc2#
- 1...Rxd1
- 2.Re2#
- 2.Re3#
- 2.Rg4#
- 1...Sxc4
- 2.Bc2#
- 2.Rg4#
- 1...Sxb5
- 2.Bc2#
- 2.Rg4#
- 1...Qf6
- 2.Rg4#
- 2.Qd3#
- 2.Qd5#
- 1...Qc7
- 2.Rg4#
- 2.Qd3#
- 2.Qd5#
- 1...Qe7
- 2.Rg4#
- 2.Qd3#
- 2.Qd5#
- 1...Qb8
- 2.Rg4#
- 2.Qd3#
- 2.Qd5#
- 1...Qf8
- 2.Rg4#
- 2.Qd3#
- 2.Qd5#
- 1...Rg1
- 2.Sd6#
- 2.Re2#
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 2.Rg4#
- 1...Bf3
- 2.Bxf3#
- 1...Sd2
- 2.Sxd2#
- 2.Sc3#
- 2.Sd6#
- 1...g4
- 2.Sd6#
- 2.Rxg4#
- 1...Qxd7!
- threat
- 1.Se6?
- threat
- 2.Rg4#
- 1...Sc2+
- 2.Bxc2#
- 1...Qxd7
- 2.Sxg5#
- 1...Rg1
- 2.Re3#
- 1...Sd2
- 2.Sxd2#
- 1...g4
- 2.Rxg4#
- 1...Bf3!
- threat
- 1.Rf4+?
- 1...exf4
- 2.Qe6#
- 1...gxf4!
- 1...exf4
- 1.Qxd8?
- threat
- 2.Qd5#
- 1...Sc2+
- 2.Bxc2#
- 1...Sxc4
- 2.Bc2#
- 1...Re3
- 2.Rxe3#
- 1...Sc3
- 2.Sd2#
- 1...Bf3!
- threat
- 1.f6?
- threat
- 2.Qg4#
- 2.Qf5#
- 2.Qh7#
- 1...Sc2+
- 2.Bxc2#
- 1...Qxf6
- 2.Qd5#
- 1...Sxc4
- 2.Bc2#
- 1...exd4
- 2.Qf5#
- 2.Qe6#
- 1...Re3
- 2.Rxe3#
- 2.Qf5#
- 2.Qh7#
- 1...Bf3
- 2.Qf5#
- 2.Qh7#
- 1...Qc7
- 2.Qg4#
- 2.Qf5#
- 2.Qd5#
- 1...Qe7
- 2.Qg4#
- 2.Qf5#
- 2.Qd5#
- 1...Qc8
- 2.Qd5#
- 1...Qe8
- 2.Qg4#
- 2.Qf5#
- 2.Qd5#
- 1...Qg8
- 2.Qg4#
- 2.Qf5#
- 1...Qh8
- 2.Qg4#
- 2.Qf5#
- 2.Qd5#
- 1...g4
- 2.Qxg4#
- 2.Qf5#
- 2.Qh7#
- 1...Qxd7!
- threat
- 1.Sc2?
- Keys
- 1.Sf3!
- threat
- 2.Rg4#
- 1...Sc2+
- 2.Bxc2#
- 1...Qxd7
- 2.Sxg5#
- 1...Bxf3
- 2.Bxf3#
- 1...Sd2
- 2.Sfxd2#
- 1...Rg1
- 2.Re2#
- 1...g4
- 2.Rxg4#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 16
- Sets
- Q(i);N_GUARD::QAB1(K)
- R(b);N_GUARD::R(D),XR(b)
- R(b);N_GUARD::R1(F),XR(b)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(d);CHECK,N_GUARD::B(C),XS(d)
- S(d);N_GUARD,XP(G)::B(C)
- S(d);N_GUARD::B(C)
- P(f);OGATEB,XS(H)::QAR2(K)
- P(h);N_GUARD::S(E)
- Tries
- Try
- S(H);
- Threat
- R(F)
- Vars
- S(d);CHECK,OGATE,XS(H)::B(C),XS(d)
- B(c);N_GUARD::B(C),XB(c)
- P(g);::R(F),XP(g)
- Refutation
- Q(i);XQ(K)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::B(C),XS(d)
- Q(i);XQ(K)::R1(F)
- R(b);::R1(F)
- Refutation
- B(c);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::B(C),XS(d)
- B(c);N_GUARD::B(C),XB(c)
- Refutation
- Q(i);XQ(K)
- Try
- S(H);
- Threat
- R(F)
- Vars
- S(d);CHECK,N_GUARD::B(C),XS(d)
- Q(i);N_GUARD,XQ(K)::S(H),XP(g)
- R(b);N_GUARD::R1(F)
- S(a);N_GUARD::S(E),XS(a)
- P(g);::R(F),XP(g)
- Refutation
- B(c);
- Try
- R(D);CHECK
- Vars
- P(f);S_CUTP(g),XR(D)::QAR2(K)
- Refutation
- P(g);XR(D)
- Try
- Q(K);XQ(i)
- Threat
- QAB1(K)
- Vars
- S(d);CHECK,N_GUARD::B(C),XS(d)
- S(d);N_GUARD,XP(G)::B(C)
- R(b);N_GUARD::R1(F),XR(b)
- S(a);N_GUARD::S(E)
- Refutation
- B(c);
- Try
- P(I);
- Threat
- DUALS(3)
- Vars
- S(d);CHECK,N_GUARD::B(C),XS(d)
- Q(i);N_GUARD,XP(I)::QAB1(K)
- S(d);N_GUARD,XP(G)::B(C)
- Q(i);N_GUARD::QAB1(K)
- Refutation
- Q(i);XQ(K)
- Try
- Actual
- S(H);
- Threat
- R(F)
- Vars
- S(d);CHECK,N_GUARD::B(C),XS(d)
- Q(i);N_GUARD,XQ(K)::S(H),XP(g)
- B(c);OGATE,XS(H)::B(C),XB(c)
- S(a);N_GUARD::S(H),XS(a)
- R(b);N_GUARD::R(D)
- P(g);::R(F),XP(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).