MESON Chess Problem Database
Problem Display
PID: 81954 (B1q5/2b5/R4N1n/2p1k1N1/7r/1p2P3/1K1Q4/5R1b w - - 0 1)
Ahues, Herbert Siegfried Oskar
Jensch, Gerhard Wolfgang
Main-Post, 1963
#2
8 + 8
| 236 | The Field | 1963 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxa6
- 2.Sd7#
- 1...Qe6
- 2.Rxe6#
- 1...Qb7
- 2.Sd7#
- 2.Re6#
- 1...Qd7
- 2.Sxd7#
- 1...Qxa8
- 2.Sd7#
- 2.Re6#
- 1...Qb8
- 2.Sd7#
- 2.Re6#
- 1...Qd8
- 2.Re6#
- 1...Qf8
- 2.Sd7#
- 2.Re6#
- 1...Qg8
- 2.Sd7#
- 1...Qh8
- 2.Sd7#
- 2.Re6#
- 1...Rh2
- 2.Qxh2#
- 1...Rh3
- 2.Qc3#
- 1...Re4
- 2.Qd5#
- 1...Rh5
- 2.Qc3#
- 1...Be4
- 2.Qc3#
- 1...Bd5
- 2.Qxd5#
- 1...Ba5
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Bd8
- 2.Qd6#
- 1...Sg4
- 2.Sf7#
- 2.Qc3#
- 1...Sf5
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...Sg8
- 2.Sf7#
- 1...Qxa6
- Tries
- 1.Sge4?
- threat
- 2.Qc3#
- 2.Qd5#
- 1...Qxa6
- 2.Qd5#
- 1...Qxa8
- 2.Qc3#
- 1...Rxe4
- 2.Qd5#
- 1...Bxe4
- 2.Qc3#
- 1...Rf4
- 2.Qd5#
- 1...Bf3
- 2.Qd5#
- 1...Bb6
- 2.Qd5#
- 2.Qd6#
- 1...Bd6
- 2.Qd5#
- 2.Qxd6#
- 1...Qe6
- 2.Qc3#
- 1...Qb7
- 2.Qc3#
- 1...Qd7
- 2.Sxd7#
- 1...Qg8
- 2.Sd7#
- 2.Qc3#
- 1...Rh2
- 2.Qxh2#
- 1...Ba5
- 2.Qd5#
- 2.Qd6#
- 1...Sf5
- 2.Qd5#
- 1...Qd8!
- threat
- 1.Sfe4?
- threat
- 2.Qc3#
- 2.Qd5#
- 1...Qxa8
- 2.Re6#
- 1...Rxe4
- 2.Qd5#
- 1...Bxe4
- 2.Qc3#
- 1...Rf4
- 2.Qd5#
- 1...Bf3
- 2.Qd5#
- 1...Qe6
- 2.Rxe6#
- 2.Qc3#
- 1...Qb7
- 2.Re6#
- 1...Qd8
- 2.Re6#
- 1...Qg8
- 2.Qc3#
- 1...Rh2
- 2.Qxh2#
- 1...Ba5
- 2.Qd5#
- 2.Qd6#
- 1...Sf5
- 2.Sf7#
- 2.Qd5#
- 1...Qd7!
- threat
- 1.Bxh1?
- threat
- 2.Qd5#
- 1...Qe6
- 2.Rxe6#
- 1...Qb7
- 2.Sd7#
- 2.Re6#
- 1...Qd7
- 2.Sxd7#
- 1...Qa8
- 2.Sd7#
- 2.Re6#
- 1...Qd8
- 2.Re6#
- 1...Qg8
- 2.Sd7#
- 1...Rh2
- 2.Qxh2#
- 1...Rd4!
- threat
- 1.Qh2+?
- 1...Rf4
- 2.Qxf4#
- 1...Rxh2+!
- 1...Rf4
- 1.e4?
- threat
- 2.Qc3#
- 2.Qd5#
- 1...Qxa6
- 2.Sd7#
- 2.Qd5#
- 1...Qxa8
- 2.Sd7#
- 2.Re6#
- 2.Qc3#
- 1...Rxe4
- 2.Qd5#
- 1...Bxe4
- 2.Qc3#
- 1...Qh3
- 2.Qd5#
- 1...Qe6
- 2.Rxe6#
- 2.Qc3#
- 1...Qb7
- 2.Sd7#
- 2.Re6#
- 2.Qc3#
- 1...Qd7
- 2.Sxd7#
- 1...Qd8
- 2.Re6#
- 1...Qg8
- 2.Sd7#
- 2.Qc3#
- 1...Rh3
- 2.Qd5#
- 1...Bf3
- 2.Sxf3#
- 1...Ba5
- 2.Qd5#
- 2.Qd6#
- 1...Bb6
- 2.Qd5#
- 1...Sf5
- 2.Sf7#
- 2.Qd5#
- 1...Rh2!
- threat
- 1.Sge4?
- Keys
- 1.Be4!
- threat
- 2.Qc3#
- 2.Qd5#
- 1...Qxa6
- 2.Sd7#
- 2.Qd5#
- 1...Rxe4
- 2.Qd5#
- 1...Bxe4
- 2.Qc3#
- 1...Qe6
- 2.Rxe6#
- 2.Qc3#
- 1...Qb7
- 2.Sd7#
- 2.Re6#
- 2.Qc3#
- 1...Qd7
- 2.Sxd7#
- 1...Qa8
- 2.Sd7#
- 2.Re6#
- 2.Qc3#
- 1...Qd8
- 2.Re6#
- 1...Qg8
- 2.Sd7#
- 2.Qc3#
- 1...Rh2
- 2.Qxh2#
- 1...Ba5
- 2.Qd5#
- 2.Qd6#
- 1...Bb6
- 2.Qd5#
- 1...Sf5
- 2.Sf7#
- 2.Qd5#
- threat
- 1.Be4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- Q(h);N_GUARD,XR(F)::S(G)
- Q(h);N_GUARD::R1(F),XQ(h)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::R1(F)
- Q(h);N_GUARD::S(G)
- R(c);N_GUARD,P_PINQ(C)::QAB(C),XR(c)
- R(c);N_GUARD::QAB(C)
- R(c);S_CUTB(a)::QAR1(C)
- B(a);S_CUTR(c)::QAB(C)
- B(a);N_GUARD::QAR1(C),XB(a)
- B(g);N_GUARD::QAB1(C)
- B(g);N_GUARD::QAB1(C),XB(g)
- S(f);N_GUARD::S(E)
- S(f);N_GUARD::S(E),XS(f)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(h);XR(F)::QAR1(C)
- Q(h);XB(H)::QAB(C)
- R(c);XS(E)::QAR1(C)
- B(a);XS(E)::QAB(C)
- R(c);::QAR1(C)
- B(a);::QAR1(C)
- Q(h);::QAB(C)
- Q(h);N_GUARD::S(G),XQ(h)
- R(c);N_GUARD,P_PINQ(C)::QAB(C),XR(c)
- S(f);::QAR1(C)
- Refutation
- Q(h);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(h);N_GUARD,XB(H)::R1(F)
- R(c);XS(G)::QAR1(C)
- B(a);XS(G)::QAB(C)
- R(c);::QAR1(C)
- B(a);::QAR1(C)
- Q(h);N_GUARD::R1(F)
- Q(h);::QAB(C)
- R(c);N_GUARD,P_PINQ(C)::QAB(C),XR(c)
- Refutation
- Q(h);
- Try
- B(H);XB(a)
- Threat
- QAR1(C)
- Vars
- Q(h);N_GUARD::R1(F),XQ(h)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::R1(F)
- Q(h);N_GUARD::S(G)
- R(c);N_GUARD,P_PINQ(C)::QAB(C),XR(c)
- Refutation
- R(c);
- Try
- Q(C);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAB1(C),XR(c)
- Refutation
- R(c);CHECK,XQ(C)
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- R(c);XP(D)::QAR1(C)
- B(a);XP(D)::QAB(C)
- Q(h);::QAR1(C)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::R1(F)
- R(c);::QAR1(C)
- B(a);N_GUARD::S(E),XB(a)
- B(g);::QAR1(C)
- Refutation
- R(c);P_PINQ(C)
- Try
- Actual
- B(H);
- Threat
- DUALS(2)
- Vars
- R(c);XB(H)::QAR1(C)
- B(a);XB(H)::QAB(C)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::R1(F)
- R(c);N_GUARD,P_PINQ(C)::QAB(C),XR(c)
- B(g);::QAR1(C)
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).