MESON Chess Problem Database
Problem Display
PID: 45718 (3n2K1/1p1Qp3/6p1/N2Pk1Bp/2p4R/br6/5p1N/1B1Rrb2 w - - 0 1)
Ahues, Herbert Siegfried Oskar
1st Prize, Schweizerische Schachzeitung, 1992
#2
9 + 12
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
| 23 | Die Schwalbe | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Rxd1
- 2.Re4#
- 1...Re2
- 2.Sxc4#
- 1...Re4
- 2.Rxe4#
- 1...Rxb1
- 2.Sf3#
- 1...Rb2
- 2.Sf3#
- 1...Rd3
- 2.Sxc4#
- 1...Rf3
- 2.Sxf3#
- 1...Rb4
- 2.Sf3#
- 2.Qc7#
- 1...Rb5
- 2.Sf3#
- 1...Rb6
- 2.Sf3#
- 1...Be2
- 2.Re4#
- 1...Bg2
- 2.Sxc4#
- 1...Bd3
- 2.Sf3#
- 1...Bh3
- 2.Sxc4#
- 1...Bc1
- 2.Qc7#
- 1...Bb2
- 2.Qc7#
- 1...Sc6
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sf7
- 2.Qe6#
- 1...c3
- 2.Sf3#
- 1...Rxd1
- Tries
- 1.Sc6+?
- 1...Sxc6
- 2.Qe6#
- 1...bxc6!
- 1...Sxc6
- 1.Bd3?
- threat
- 2.Sf3#
- 2.Sxc4#
- 1...Rxd3
- 2.Sxc4#
- 1...Bxd3
- 2.Sf3#
- 1...cxd3
- 2.Sf3#
- 2.Sc4#
- 1...Re4
- 2.Sf3#
- 2.Rxe4#
- 1...Re3
- 2.Sxc4#
- 1...Rc3
- 2.Sf3#
- 1...Rb4
- 2.Sf3#
- 1...Be2
- 2.Sxc4#
- 2.Re4#
- 1...Bg2
- 2.Sxc4#
- 1...c3
- 2.Sf3#
- 2.Sc4#
- 1...b5
- 2.Sf3#
- 1...Bd6!
- threat
- 1.Rd3?
- threat
- 2.Sf3#
- 2.Sxc4#
- 1...Rxd3
- 2.Sxc4#
- 1...Bxd3
- 2.Sf3#
- 1...cxd3
- 2.Sf3#
- 2.Sc4#
- 1...Se6
- 2.Qxe6#
- 1...Re3
- 2.Sxc4#
- 1...Rc1
- 2.Sf3#
- 1...Re4
- 2.Sf3#
- 1...Rc3
- 2.Sf3#
- 1...Rb4
- 2.Sf3#
- 1...Be2
- 2.Sxc4#
- 1...Bg2
- 2.Sxc4#
- 1...c3
- 2.Sf3#
- 2.Sc4#
- 1...b5
- 2.Sf3#
- 1...e6!
- threat
- 1.Qxe7+?
- 1...Se6
- 2.Bf4#
- 2.Bf6#
- 2.Qxe6#
- 1...Bxe7!
- 1...Se6
- 1.Sc6+?
- Keys
- 1.Kg7!
- threat
- 2.Bf4#
- 1...Se6+
- 2.Qxe6#
- 1...Rxd1
- 2.Re4#
- 1...Rxb1
- 2.Sf3#
- 1...Re4
- 2.Rxe4#
- 1...Rd3
- 2.Sxc4#
- 1...Rf3
- 2.Sxf3#
- 1...Bd3
- 2.Sf3#
- 1...Bc1
- 2.Qc7#
- threat
- 1.Kg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 11
- Sets
- R(a);N_GUARD,XR(B)::R1(D)
- R(a);S_CUTB(b)::S(E),XP(f)
- R(a);N_GUARD::R1(D),XR(a)
- R(e);N_GUARD,XB(A)::S(C)
- R(e);N_GUARD::S(C)
- R(e);S_CUTB(b)::S(E),XP(f)
- R(e);N_GUARD::S(C),XR(e)
- B(b);S_CUTR(a)::R1(D)
- B(b);N_GUARD::S(E),XP(f)
- B(b);S_CUTR(e)::S(C)
- B(d);N_GUARD::QAB(H)
- S(l);N_GUARD::QAR1(H)
- S(l);N_GUARD::QAR1(H),XS(l)
- P(f);S_CUTR(e)::S(C)
- Tries
- Try
- S(E);CHECK
- Vars
- S(l);XS(E)::QAR1(H)
- Refutation
- P(j);XS(E)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(e);XB(A)::S(E),XP(f)
- B(b);XB(A)::S(C)
- R(a);::S(E),XP(f)
- R(e);::S(C)
- B(b);::S(E),XP(f)
- P(j);::S(C)
- Refutation
- B(d);
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(e);XR(B)::S(E),XP(f)
- B(b);XR(B)::S(C)
- S(l);N_GUARD::QAR1(H),XS(l)
- R(a);::S(E),XP(f)
- R(a);::S(C)
- R(e);::S(C)
- B(b);::S(E),XP(f)
- P(j);::S(C)
- Refutation
- P(k);
- Try
- Q(H);CHECK,XP(k)
- Refutation
- B(d);XQ(H)
- Try
- Actual
- K(I);P-FLIGHT
- Threat
- B(G)
- Vars
- S(l);CHECK,N_GUARD::QAR1(H),XS(l)
- R(a);N_GUARD,XR(B)::R1(D)
- R(e);N_GUARD,XB(A)::S(C)
- R(a);N_GUARD::R1(D),XR(a)
- R(e);S_CUTB(b)::S(E),XP(f)
- R(e);N_GUARD::S(C),XR(e)
- B(b);S_CUTR(e)::S(C)
- B(d);N_GUARD::QAB(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).