MESON Chess Problem Database
Problem Display
PID: 243279 (3R4/1bQ4q/4BR1b/2p1n3/4k3/1Nr3r1/3BPP2/KN6 w - - 0 1)
Andersen, Idon Bruno Hovedskou
Skakbladet, 1942
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Bxf5#
- 1...Qg8
- 2.Bf5#
- 1...Qxc7
- 2.Bf5#
- 1...Qe7
- 2.Bf5#
- 1...Qf7
- 2.Bf5#
- 1...Qg7
- 2.Bf5#
- 1...Qh8
- 2.Bf5#
- 1...Rcd3
- 2.Sxc5#
- 1...Rce3
- 2.Sxc5#
- 1...Rcf3
- 2.Sxc5#
- 1...Rg2
- 2.Sxc3#
- 1...Rg4
- 2.Sxc3#
- 1...Rg5
- 2.Sxc3#
- 2.Rf4#
- 1...Rg6
- 2.Sxc3#
- 2.Bf5#
- 1...Rg7
- 2.Sxc3#
- 1...Rg8
- 2.Sxc3#
- 1...Bxd2
- 2.S1xd2#
- 2.S3xd2#
- 1...Be3
- 2.Sxc3#
- 1...Bf4
- 2.Rxf4#
- 1...Bg7
- 2.Rf4#
- 1...Bf8
- 2.Rf4#
- 1...Bd5
- 2.Bxd5#
- 1...Ba6
- 2.Bd5#
- 1...Bc8
- 2.Bd5#
- 1...Sd3
- 2.Sxc3#
- 1...Sf3
- 2.Sxc3#
- 1...Sc4
- 2.Sxc5#
- 1...Sc6
- 2.Bd5#
- 1...Sg6
- 2.Bf5#
- 1...c4
- 2.Sc5#
- 2.Rd4#
- 1...Qf5
- Tries
- 1.Be3?
- threat
- 2.S1d2#
- 2.Sxc3#
- 2.S3d2#
- 1...Rxb3
- 2.Sd2#
- 1...Rcxe3
- 2.S1d2#
- 2.S3d2#
- 2.Sxc5#
- 1...Rgxe3
- 2.S1d2#
- 2.S3d2#
- 1...Bxe3
- 2.Sxc3#
- 1...Qd7
- 2.Sxc3#
- 1...Rc1
- 2.Sd2#
- 1...Rd3
- 2.Sxc5#
- 1...Rc4
- 2.S1d2#
- 2.S3d2#
- 1...Rg1
- 2.Sd2#
- 1...Sf3
- 2.Sxc3#
- 1...Sc4
- 2.Sxc3#
- 2.Sxc5#
- 1...Rc2!
- threat
- 1.Bg5?
- threat
- 2.S1d2#
- 2.S3d2#
- 2.Rf4#
- 1...Rxb3
- 2.Sd2#
- 2.Rf4#
- 1...Rxg5
- 2.S1d2#
- 2.Sxc3#
- 2.S3d2#
- 1...Qf5
- 2.S1d2#
- 2.S3d2#
- 2.Bxf5#
- 1...Qd7
- 2.Rf4#
- 1...Qf7
- 2.S1d2#
- 2.S3d2#
- 2.Bf5#
- 1...Rc1
- 2.Sd2#
- 2.Rf4#
- 1...Rc2
- 2.Rf4#
- 1...Rcd3
- 2.Sxc5#
- 2.Rf4#
- 1...Rcf3
- 2.S1d2#
- 2.S3d2#
- 2.Sxc5#
- 1...Rg1
- 2.Sd2#
- 2.Rf4#
- 1...Rgd3
- 2.Rf4#
- 1...Rgf3
- 2.S1d2#
- 2.S3d2#
- 1...Rg4
- 2.S1d2#
- 2.Sxc3#
- 2.S3d2#
- 1...Bd5
- 2.S1d2#
- 2.Bxd5#
- 2.Rf4#
- 1...Sd3
- 2.S1d2#
- 2.Sxc3#
- 2.S3d2#
- 1...Sf3
- 2.Sxc3#
- 2.Rf4#
- 2.Qf4#
- 1...Sc4
- 2.Sxc5#
- 2.Rf4#
- 2.Qf4#
- 1...Sg6
- 2.S1d2#
- 2.S3d2#
- 2.Bf5#
- 1...Sd7
- 2.S1d2#
- 2.Rf4#
- 2.Qf4#
- 1...Bxg5!
- threat
- 1.Bxh6?
- threat
- 2.S1d2#
- 2.S3d2#
- 2.Rf4#
- 1...Rxb3
- 2.Sd2#
- 2.Rf4#
- 1...Qf5
- 2.S1d2#
- 2.S3d2#
- 2.Bxf5#
- 1...Qd7
- 2.Rf4#
- 1...Qf7
- 2.S1d2#
- 2.S3d2#
- 2.Bf5#
- 1...Rc1
- 2.Sd2#
- 2.Rf4#
- 1...Rc2
- 2.Rf4#
- 1...Rcd3
- 2.Sxc5#
- 2.Rf4#
- 1...Rcf3
- 2.S1d2#
- 2.S3d2#
- 2.Sxc5#
- 1...Rg1
- 2.Sd2#
- 2.Rf4#
- 1...Rgd3
- 2.Rf4#
- 1...Rgf3
- 2.S1d2#
- 2.S3d2#
- 1...Rg4
- 2.S1d2#
- 2.Sxc3#
- 2.S3d2#
- 1...Rg5
- 2.S1d2#
- 2.Sxc3#
- 2.S3d2#
- 1...Bd5
- 2.S1d2#
- 2.Bxd5#
- 2.Rf4#
- 1...Sd3
- 2.S1d2#
- 2.Sxc3#
- 2.S3d2#
- 1...Sf3
- 2.Sxc3#
- 2.Rf4#
- 2.Qf4#
- 1...Sc4
- 2.Sxc5#
- 2.Rf4#
- 2.Qf4#
- 1...Sg6
- 2.S1d2#
- 2.S3d2#
- 2.Bf5#
- 1...Sd7
- 2.S1d2#
- 2.Rf4#
- 2.Qf4#
- 1...Qxh6!
- threat
- 1.Qxb7+?
- 1...Qxb7
- 2.Bf5#
- 1...Sc6!
- 1...Qxb7
- 1.Qxh7+?
- 1...Rg6
- 2.Sxc3#
- 2.Bf5#
- 1...Sg6!
- 1...Rg6
- 1.f3+?
- 1...Rcxf3
- 2.Sxc5#
- 1...Sxf3
- 2.Sxc3#
- 1...Rgxf3!
- 1...Rcxf3
- 1.Be3?
- Keys
- 1.f4!
- threat
- 2.Qxe5#
- 1...Qxc7
- 2.Bf5#
- 1...Bxf4
- 2.Rxf4#
- 1...Qf5
- 2.Bxf5#
- 1...Rg5
- 2.Sxc3#
- 1...Sd3
- 2.Sxc3#
- 1...Sf3
- 2.Sxc3#
- 1...Sc4
- 2.Sxc5#
- 1...Sg4
- 2.Qxh7#
- 1...Sc6
- 2.Bd5#
- 1...Sg6
- 2.Bf5#
- 1...Sd7
- 2.Qxb7#
- 1...Sf7
- 2.Qxb7#
- threat
- 1.f4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 18
- Sets
- Q(h);N_GUARD::B(G),XQ(h)
- Q(h);N_GUARD::B(G)
- Q(h);N_GUARD,XQ(I)::B(G)
- R(a);N_GUARD::S(F),XP(d)
- R(b);N_GUARD::S(B),XR(a)
- B(f);S_CUTR(b)::S(B),XR(a)
- B(f);N_GUARD::R1(H),XB(f)
- B(f);N_GUARD::R1(H)
- B(g);N_GUARD::B(G),XB(g)
- B(g);N_GUARD::B(G)
- S(e);S_CUTR(b)::S(B),XR(a)
- S(e);S_CUTR(a)::S(F),XP(d)
- S(e);S_CUTB(g)::B(G)
- S(e);S_CUTQ(h)::B(G)
- Tries
- Try
- B(C);
- Threat
- DUALS(3)
- Vars
- R(a);XS(F)::S(B)
- B(f);XB(C)::S(B),XR(a)
- Q(h);::S(B),XR(a)
- R(a);P_PINS(B)::S(F)
- R(a);N_GUARD::S(F),XP(d)
- R(b);P_PINS(B)::S(F)
- S(e);::S(B),XR(a)
- Refutation
- R(a);
- Try
- B(C);
- Threat
- DUALS(3)
- Vars
- Q(h);::R1(H)
- R(a);::R1(H)
- R(b);::R1(H)
- Refutation
- B(f);XB(C)
- Try
- B(C);XB(f)
- Threat
- DUALS(3)
- Vars
- Q(h);::R1(H)
- R(a);::R1(H)
- R(b);::R1(H)
- Refutation
- Q(h);XB(C)
- Try
- Q(I);CHECK,XB(g)
- Vars
- Q(h);XQ(I)::B(G)
- Refutation
- S(e);P_SPINS(e)
- Try
- Q(I);CHECK,XQ(h)
- Refutation
- S(e);P_SPINS(e)
- Try
- P(E);CHECK
- Vars
- R(a);XP(E)::S(F),XP(d)
- S(e);XP(E)::S(B),XR(a)
- Refutation
- R(b);XP(E)
- Try
- Actual
- P(E);
- Threat
- QAR1(I),XS(e)
- Vars
- Q(h);N_GUARD,XQ(I)::B(G)
- B(f);OGATE,XP(E)::R1(H),XB(f)
- Q(h);N_GUARD::B(G),XQ(h)
- R(b);N_GUARD::S(B),XR(a)
- S(e);S_CUTR(b)::S(B),XR(a)
- S(e);S_CUTR(a)::S(F),XP(d)
- S(e);N_GUARD,S_CUTR(b)::QAB(I),XQ(h)
- S(e);S_CUTB(g)::B(G)
- S(e);S_CUTQ(h)::B(G)
- S(e);N_GUARD,S_CUTQ(h)::QAB(I),XB(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).