MESON Chess Problem Database
Problem Display
PID: 243727 (8/b1Br4/4R1B1/N6R/2Pk1p2/Qq3pNK/1Pn3P1/n7 w - - 0 1)
Beck, Friedrich
Skakbladet, 1940
#2
11 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Sf5#
- 2.Be5#
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Qa4
- 2.Sf5#
- 2.Be5#
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Qxc4
- 2.Re4#
- 1...Qxb2
- 2.Sf5#
- 2.Be5#
- 2.Re4#
- 2.Qxb2#
- 2.Qd3#
- 1...Qc3
- 2.Qxc3#
- 2.bxc3#
- 1...Qd3
- 2.Qxd3#
- 1...Qe3
- 2.Sf5#
- 1...Qb4
- 2.Re4#
- 2.Qd3#
- 1...Qb5
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Qb6
- 2.Sf5#
- 2.Be5#
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Qb7
- 2.Sf5#
- 2.Be5#
- 2.Qc3#
- 2.Qd3#
- 1...Qb8
- 2.Sf5#
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Qxd6#
- 1...Rxc7
- 2.Rd5#
- 2.Qd6#
- 1...Re7
- 2.Rd5#
- 2.Qd6#
- 1...Rf7
- 2.Rd5#
- 2.Qd6#
- 1...Rg7
- 2.Rd5#
- 2.Qd6#
- 1...Rh7
- 2.Qd6#
- 1...Bc5
- 2.Qxc5#
- 1...Bb8
- 2.Qc5#
- 1...Se3
- 2.Be5#
- 1...fxg3
- 2.Rh4#
- 1...Qa2
- Tries
- 1.Bxc2?
- threat
- 2.Sf5#
- 2.Re4#
- 1...Qxc2
- 2.Be5#
- 1...Qxc4
- 2.Re4#
- 1...Qxa3
- 2.Re4#
- 1...fxg2
- 2.Re4#
- 1...fxg3
- 2.Rh4#
- 2.Re4#
- 1...Qd3
- 2.Qxd3#
- 1...Qe3
- 2.Sf5#
- 1...Qb4
- 2.Re4#
- 2.Qd3#
- 1...Qb5
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Qb7
- 2.Sf5#
- 2.Be5#
- 2.Qc3#
- 2.Qd3#
- 1...Rd5
- 2.Rxd5#
- 2.Re4#
- 1...Re7
- 2.Sf5#
- 2.Rd5#
- 2.Qd6#
- 1...Rf7
- 2.Rd5#
- 2.Re4#
- 2.Qd6#
- 1...f2
- 2.Re4#
- 1...Sxc2!
- threat
- 1.Bb6+?
- 1...Qxb6
- 2.Sf5#
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Bxb6!
- 1...Qxb6
- 1.Bd8?
- threat
- 2.Bf6#
- 1...Qe3
- 2.Sf5#
- 1...Qb5
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Qb8
- 2.Sf5#
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Rd5
- 2.Rxd5#
- 1...Re7
- 2.Rd5#
- 2.Qd6#
- 1...Rf7
- 2.Rd5#
- 2.Qd6#
- 1...Bb8
- 2.Qc5#
- 1...Rxd8!
- threat
- 1.Qe7?
- threat
- 2.Qf6#
- 2.Qxd7#
- 1...Qxc4
- 2.Qf6#
- 1...Qxb2
- 2.Qf6#
- 1...Rxc7
- 2.Rd5#
- 2.Rd6#
- 2.Qd6#
- 2.Qf6#
- 1...Rxe7
- 2.Rd5#
- 1...Qa4
- 2.Qf6#
- 1...Qa3
- 2.Qf6#
- 1...Qe3
- 2.Qxd7#
- 1...Qb4
- 2.Qf6#
- 1...Qb6
- 2.Qf6#
- 1...Qb7
- 2.Qf6#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Rxd6#
- 2.Qxd6#
- 2.Qf6#
- 2.Qg7#
- 1...Rd8
- 2.Qf6#
- 2.Qxd8#
- 2.Qg7#
- 1...Bc5
- 2.Qxc5#
- 2.Qf6#
- 1...Se3
- 2.Be5#
- 2.Qf6#
- 1...Sb4
- 2.Qf6#
- 1...Qb5!
- threat
- 1.Qf8?
- threat
- 2.Qxf4#
- 2.Qf6#
- 1...Qxb2
- 2.Qf6#
- 1...fxg3
- 2.Rh4#
- 2.Qf4#
- 2.Qf6#
- 1...Qd3
- 2.Qf6#
- 1...Qb5
- 2.Qxf4#
- 1...Qb7
- 2.Qf6#
- 1...Rd5
- 2.Rxd5#
- 1...Rf7
- 2.Rd5#
- 2.Qd6#
- 1...Qe3!
- threat
- 1.Qxb3?
- threat
- 2.Sc6#
- 2.Re4#
- 2.Qc3#
- 2.Qd3#
- 1...Rxc7
- 2.Rd5#
- 2.Re4#
- 2.Rd6#
- 2.Qc3#
- 2.Qd3#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Re4#
- 2.Rxd6#
- 2.Qc3#
- 2.Qd3#
- 1...Re7
- 2.Sc6#
- 2.Rd5#
- 2.Rd6#
- 2.Qc3#
- 2.Qd3#
- 1...Se1
- 2.Sc6#
- 2.Re4#
- 2.Qc3#
- 1...Sb4
- 2.Re4#
- 2.Qc3#
- 1...Sxb3!
- threat
- 1.Bxc2?
- Keys
- 1.gxf3!
- threat
- 2.Se2#
- 1...Qxc4
- 2.Re4#
- 1...Qxf3
- 2.Be5#
- 1...fxg3
- 2.Rh4#
- 1...Qd3
- 2.Qxd3#
- 1...Qe3
- 2.Sf5#
- threat
- 1.gxf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(c);XP(F)::R1(I)
- Q(c);OGATE::QAR1(C),XQ(c)
- Q(c);::S(D)
- R(h);N_GUARD::R1(H),XR(h)
- R(h);N_GUARD::QAR2(C),XR(h)
- R(h);N_GUARD,P_PINR(H)::QAR2(C)
- B(g);N_GUARD::QAB1(C),XB(g)
- B(g);N_GUARD::QAB1(C)
- S(b);SBLOCK::B(K)
- P(f);OGATEB,XS(D)::R(H)
- Tries
- Try
- B(J);XS(b)
- Threat
- DUALS(2)
- Vars
- Q(c);XB(J)::B(K)
- Q(c);XP(F)::R1(I)
- Q(c);XQ(C)::R1(I)
- P(d);P_PINS(D),XP(B)::R1(I)
- Q(c);OGATE::QAR1(C),XQ(c)
- Q(c);::S(D)
- P(d);P_PINS(D)::R1(I)
- Refutation
- S(a);XB(J)
- Try
- B(K);CHECK
- Refutation
- B(g);XB(K)
- Try
- B(K);
- Threat
- B(K)
- Vars
- Q(c);::S(D)
- R(h);N_GUARD::R1(H),XR(h)
- B(g);N_GUARD::QAB1(C)
- Refutation
- R(h);XB(K)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(c);XP(F)::QAB(C)
- Q(c);XP(A)::QAB(C)
- R(h);N_GUARD,XQ(C)::R1(H)
- Q(c);::QAB(C)
- Q(c);::QAR(C),XR(h)
- R(h);N_GUARD::R1(H),XR(h)
- S(b);::QAB(C)
- Refutation
- Q(c);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(c);XP(A)::QAB(C)
- Q(c);::QAB(C)
- Q(c);::QAR2(C),XP(f)
- R(h);N_GUARD::R1(H),XR(h)
- Refutation
- Q(c);
- Try
- Q(C);XQ(c)
- Threat
- DUALS(4)
- Vars
- R(h);N_GUARD::R1(H),XR(h)
- Refutation
- S(a);XQ(C)
- Try
- Actual
- P(B);XP(d)
- Threat
- S(D)
- Vars
- Q(c);XP(F)::R1(I)
- Q(c);P_PINS(D),XP(B)::B(K)
- P(f);OGATEB,XS(D)::R(H)
- Q(c);OGATE::QAR1(C),XQ(c)
- Q(c);::S(D)
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).