MESON Chess Problem Database
Problem Display
PID: 243289 (7N/2pQ2K1/1Nr5/Rp1Bk3/3pn1R1/1p2P3/5r2/bb6 w - - 0 1)
Andersen, Idon Bruno Hovedskou
Skakbladet, 1952
#2
8 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Sf7#
- 1...Rb2
- 2.Sf7#
- 1...Rfc2
- 2.Sf7#
- 2.Rxe4#
- 1...Rd2
- 2.Sf7#
- 1...Re2
- 2.Sf7#
- 1...Rg2
- 2.Sf7#
- 1...Rh2
- 2.Sf7#
- 1...Rf4
- 2.exf4#
- 1...Rf7+
- 2.Sxf7#
- 1...Rc1
- 2.Sg6#
- 2.Qe6#
- 1...Rcc2
- 2.Sg6#
- 2.Rxe4#
- 2.Qe6#
- 1...Rc3
- 2.Sg6#
- 2.Qe6#
- 1...Rc4
- 2.Sg6#
- 2.Qe6#
- 1...Rc5
- 2.Sg6#
- 2.Qe6#
- 1...Re6
- 2.Qxe6#
- 1...Rg6+
- 2.Sxg6#
- 1...Ba2
- 2.Rxe4#
- 1...Sc3
- 2.exd4#
- 1...Sd6
- 2.Qe6#
- 1...Sf6
- 2.Sf7#
- 1...d3
- 2.Rxe4#
- 1...Ra2
- Tries
- 1.Sc4+?
- 1...Rxc4
- 2.Sg6#
- 2.Qe6#
- 1...bxc4!
- 1...Rxc4
- 1.Bxb3?
- threat
- 2.Qd5#
- 1...Rf7+
- 2.Sxf7#
- 1...Rg6+
- 2.Sxg6#
- 1...Rc5
- 2.Sg6#
- 2.Qe6#
- 1...Sc3
- 2.exd4#
- 1...Sd6
- 2.Qe6#
- 1...Sf6
- 2.Sf7#
- 1...Rd6!
- threat
- 1.Bc4?
- threat
- 2.Qd5#
- 1...Rf7+
- 2.Sxf7#
- 1...Rg6+
- 2.Sxg6#
- 1...Rc5
- 2.Sg6#
- 2.Qe6#
- 1...Sc3
- 2.exd4#
- 1...Sd6
- 2.Qe6#
- 1...Sf6
- 2.Sf7#
- 1...Rd6!
- threat
- 1.Bxe4?
- threat
- 2.Qd5#
- 1...Rf7+
- 2.Sxf7#
- 1...Rg6+
- 2.Sxg6#
- 1...Rd6
- 2.Sc4#
- 1...Rc5
- 2.Sg6#
- 2.Qe7#
- 1...Bxe4!
- threat
- 1.Bxc6?
- threat
- 2.Sc4#
- 2.Sg6#
- 2.Qd5#
- 1...Rf7+
- 2.Sxf7#
- 1...cxb6
- 2.Sg6#
- 2.Qd5#
- 1...Rc2
- 2.Sg6#
- 2.Sf7#
- 2.Rxe4#
- 2.Qd5#
- 1...Rf6
- 2.Sc4#
- 2.Qd5#
- 1...Bd3
- 2.Sg6#
- 2.Qd5#
- 1...Sd2
- 2.Rxb5#
- 2.Qd5#
- 1...Sc3
- 2.Sc4#
- 2.exd4#
- 1...Sg3
- 2.Sc4#
- 2.Rxb5#
- 2.Qd5#
- 1...Sc5
- 2.Qd5#
- 1...Sg5
- 2.Sc4#
- 2.Rxb5#
- 2.Qd5#
- 1...Sf6
- 2.Sc4#
- 2.Sf7#
- 1...Sd6!
- threat
- 1.Be6?
- threat
- 2.Sg6#
- 2.Qd5#
- 1...Rf7+
- 2.Sxf7#
- 1...Rxe6
- 2.Qd5#
- 1...Rd6
- 2.Sc4#
- 2.Sg6#
- 1...Rf6
- 2.Qd5#
- 1...Rc5
- 2.Sg6#
- 1...Sd2
- 2.Qd5#
- 1...Sc3
- 2.exd4#
- 1...Sg3
- 2.Qd5#
- 1...Sc5
- 2.Qd5#
- 1...Sg5
- 2.Qd5#
- 1...Sf6
- 2.Sf7#
- 1...Sd6!
- threat
- 1.Bf7?
- threat
- 2.Qd5#
- 1...Rxf7+
- 2.Sxf7#
- 1...Rg6+
- 2.Sxg6#
- 1...Rd6
- 2.Sc4#
- 1...Rc5
- 2.Sg6#
- 2.Qe6#
- 1...Sc3
- 2.exd4#
- 1...Sd6
- 2.Qe6#
- 1...Sf6!
- threat
- 1.Rg5+?
- 1...Rf5
- 2.Sf7#
- 2.Rxf5#
- 1...Sxg5!
- 1...Rf5
- 1.Qe7+?
- 1...Re6
- 2.Qxe6#
- 1...Kf5!
- 1...Re6
- 1.Sc4+?
- Keys
- 1.Bg8!
- threat
- 2.Qd5#
- 1...Rf7+
- 2.Sxf7#
- 1...Rg6+
- 2.Sxg6#
- 1...Rd6
- 2.Sc4#
- 1...Rc5
- 2.Sg6#
- 2.Qe6#
- 1...Sc3
- 2.exd4#
- 1...Sd6
- 2.Qe6#
- 1...Sf6
- 2.Sf7#
- threat
- 1.Bg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(c);N_GUARD::S(H)
- R(c);N_GUARD,P_PINR(B)::S(H)
- R(c);OGATE::P(A),XR(c)
- R(c);CHECK,N_GUARD::S(H),XR(c)
- R(i);N_GUARD::QAR1(F),XR(i)
- R(i);CHECK,N_GUARD::S(H),XR(i)
- B(b);N_GUARD::R1(B),XS(f)
- S(f);S_CUTB(a)::P(A),XP(e)
- S(f);S_CUTR(i)::QAR1(F)
- S(f);S_CUTR(c)::S(H)
- P(e);S_CUTB(b)::R1(B),XS(f)
- Tries
- Try
- S(E);CHECK
- Refutation
- P(g);XS(E)
- Try
- B(D);P_PINP(g),XP(d)
- Threat
- QAR1(F)
- Vars
- R(c);CHECK,N_GUARD::S(H),XR(c)
- R(i);CHECK,N_GUARD::S(H),XR(i)
- S(f);S_CUTB(a)::P(A),XP(e)
- S(f);S_CUTR(i)::QAR1(F)
- S(f);S_CUTR(c)::S(H)
- Refutation
- R(i);
- Try
- B(D);P_PINP(g)
- Threat
- QAR1(F)
- Vars
- R(c);CHECK,N_GUARD::S(H),XR(c)
- R(i);CHECK,N_GUARD::S(H),XR(i)
- S(f);S_CUTB(a)::P(A),XP(e)
- S(f);S_CUTR(i)::QAR1(F)
- S(f);S_CUTR(c)::S(H)
- Refutation
- R(i);
- Try
- B(D);P_PINP(g),XS(f)
- Threat
- QAR1(F)
- Vars
- R(c);CHECK,N_GUARD::S(H),XR(c)
- R(i);CHECK,N_GUARD::S(H),XR(i)
- R(i);N_GUARD::S(E)
- Refutation
- B(b);XB(D)
- Try
- B(D);P_PINP(g),XR(i)
- Threat
- DUALS(3)
- Vars
- R(c);CHECK,N_GUARD::S(H),XR(c)
- S(f);N_SPINP(g)::QAR1(F)
- Refutation
- S(f);
- Try
- B(D);P_PINP(g)
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,N_GUARD::S(H),XR(c)
- R(i);XB(D)::QAR1(F)
- R(c);::QAR1(F)
- R(i);N_SPINP(g)::S(H)
- S(f);::QAR1(F)
- S(f);S_CUTB(a)::P(A),XP(e)
- S(f);N_SPINP(g)::QAR1(F)
- S(f);S_CUTR(c)::S(H)
- Refutation
- S(f);
- Try
- B(D);P_PINP(g)
- Threat
- QAR1(F)
- Vars
- R(c);CHECK,XB(D)::S(H),XR(c)
- R(i);CHECK,N_GUARD::S(H),XR(i)
- R(i);N_GUARD::S(E)
- S(f);S_CUTB(a)::P(A),XP(e)
- S(f);S_CUTR(i)::QAR1(F)
- Refutation
- S(f);
- Try
- R(B);CHECK
- Refutation
- S(f);XR(B)
- Try
- Q(F);CHECK
- Vars
- R(i);N_GUARD,P_SPINR(i)::QAR1(F),XR(i)
- Refutation
- K(h);P-FLIGHT
- Try
- Actual
- B(D);P_PINP(g)
- Threat
- QAR1(F)
- Vars
- R(c);CHECK,N_GUARD::S(H),XR(c)
- R(i);CHECK,N_GUARD::S(H),XR(i)
- R(i);N_GUARD::S(E)
- S(f);S_CUTB(a)::P(A),XP(e)
- S(f);S_CUTR(i)::QAR1(F)
- S(f);S_CUTR(c)::S(H)
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).