MESON Chess Problem Database
Problem Display
PID: 158612 (2r5/1N4pb/1Qp1p3/p1Nkp2R/2pn1R2/7r/4Pb2/B4Kn1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
L'Italia Scacchistica, 1963
#2
8 + 13
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Rxd4#
- 1...Rd8
- 2.Qxd8#
- 1...Be1
- 2.Rxd4#
- 1...Bg3
- 2.Rxd4#
- 1...Bh4
- 2.Rxd4#
- 1...Bg8
- 2.e4#
- 1...Sc2
- 2.Rxe5#
- 1...Sxe2
- 2.Rxe5#
- 1...Sb3
- 2.Rxe5#
- 1...Sb5
- 2.Rxe5#
- 1...Sf5
- 2.e4#
- 1...g6
- 2.e4#
- 1...Re3
- Tries
- 1.Sb3?
- threat
- 2.Qc5#
- 1...Sdxe2
- 2.Rxe5#
- 1...Sxb3
- 2.Rxe5#
- 1...Sc2
- 2.Rxe5#
- 1...Sb5
- 2.Rxe5#
- 1...Sf5
- 2.e4#
- 1...c5
- 2.Qd6#
- 1...Sdf3!
- threat
- 1.Sd3?
- threat
- 2.Rxe5#
- 2.Qc5#
- 1...Rxd3
- 2.Qc5#
- 1...Rxh5
- 2.Qc5#
- 1...Bxd3
- 2.Qc5#
- 1...Sdxe2
- 2.Rxe5#
- 1...cxd3
- 2.Qc5#
- 1...c3
- 2.Qc5#
- 1...Re3
- 2.Rxd4#
- 2.Qxd4#
- 2.Qc5#
- 1...Bf5
- 2.Qc5#
- 1...Sgf3
- 2.Qc5#
- 1...Sc2
- 2.Rxe5#
- 1...Sb3
- 2.Rxe5#
- 1...Sb5
- 2.Rxe5#
- 1...Sf5
- 2.e4#
- 1...c5
- 2.Rxe5#
- 2.Qd6#
- 1...g5
- 2.Qc5#
- 1...Sdf3!
- threat
- 1.Se4?
- threat
- 2.Qc5#
- 1...Sdxe2
- 2.Rxe5#
- 1...Sdf3
- 2.Sc3#
- 1...Sc2
- 2.Rxe5#
- 1...Sb3
- 2.Rxe5#
- 1...Sb5
- 2.Rxe5#
- 1...c5
- 2.Qd6#
- 1...Sf5!
- threat
- 1.Sa6?
- threat
- 2.Qc5#
- 1...Sdxe2
- 2.Rxe5#
- 1...Sc2
- 2.Rxe5#
- 1...Sb3
- 2.Rxe5#
- 1...Sb5
- 2.Rxe5#
- 1...Sf5
- 2.e4#
- 1...c5
- 2.Qd6#
- 1...Sdf3!
- threat
- 1.Sd7?
- threat
- 2.Rxe5#
- 2.Qc5#
- 1...Rxh5
- 2.Qc5#
- 1...Sdxe2
- 2.Rxe5#
- 1...c3
- 2.Qc5#
- 1...Re3
- 2.Rxd4#
- 2.Qxd4#
- 2.Qc5#
- 1...Bf5
- 2.Qc5#
- 1...Sgf3
- 2.Qc5#
- 1...Sc2
- 2.Rxe5#
- 1...Sb3
- 2.Rxe5#
- 1...Sb5
- 2.Rxe5#
- 1...Sf5
- 2.e4#
- 1...c5
- 2.Rxe5#
- 2.Qd6#
- 1...g5
- 2.Sf6#
- 2.Qc5#
- 1...Sdf3!
- threat
- 1.Sb3?
- Keys
- 1.Sa4!
- threat
- 2.Qc5#
- 1...Sdxe2
- 2.Rxe5#
- 1...Sdf3
- 2.Sc3#
- 1...Sc2
- 2.Rxe5#
- 1...Sb3
- 2.Rxe5#
- 1...Sb5
- 2.Rxe5#
- 1...Sf5
- 2.e4#
- 1...c5
- 2.Qd6#
- threat
- 1.Sa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(c);S_CUTB(b)::R1(D),XS(e)
- R(m);N_GUARD::QAR(G),XR(m)
- B(b);N_GUARD::R1(D),XS(e)
- B(l);N_GUARD::P(C)
- S(e);::R1(F),XP(h)
- S(e);XP(C)::R1(F),XP(h)
- S(e);N_SPINP(h),S_CUTB(l)::P(C)
- P(k);S_CUTB(l)::P(C)
- Tries
- Try
- S(E);
- Threat
- QAR1(G)
- Vars
- S(e);XP(C)::R1(F),XP(h)
- S(e);XS(E)::R1(F),XP(h)
- S(e);::R1(F),XP(h)
- S(e);N_SPINP(h),S_CUTB(l)::P(C)
- P(i);OGATE::QAR1(G)
- Refutation
- S(e);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(c);XS(E)::QAR1(G)
- R(c);N_SPINP(h),XR(F)::QAR1(G)
- B(l);P_PINP(C),XS(E)::QAR1(G)
- S(e);XP(C)::R1(F),XP(h)
- P(d);XS(E)::QAR1(G)
- P(d);::QAR1(G)
- B(l);N_SPINP(h)::QAR1(G)
- S(a);::QAR1(G)
- S(e);::R1(F),XP(h)
- S(e);N_SPINP(h),S_CUTB(l)::P(C)
- P(k);N_SPINP(h)::QAR1(G)
- Refutation
- S(e);
- Try
- S(E);
- Threat
- QAR1(G)
- Vars
- S(e);XP(C)::R1(F),XP(h)
- S(e);S_CUTR(c)::S(E)
- S(e);::R1(F),XP(h)
- P(i);OGATE::QAR1(G)
- Refutation
- S(e);N_SPINP(h)
- Try
- S(E);
- Threat
- QAR1(G)
- Vars
- S(e);XP(C)::R1(F),XP(h)
- S(e);::R1(F),XP(h)
- S(e);N_SPINP(h),S_CUTB(l)::P(C)
- P(i);OGATE::QAR1(G)
- Refutation
- S(e);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(c);N_SPINP(h),XR(F)::QAR1(G)
- S(e);XP(C)::R1(F),XP(h)
- P(d);::QAR1(G)
- B(l);N_SPINP(h)::QAR1(G)
- S(a);::QAR1(G)
- S(e);::R1(F),XP(h)
- S(e);N_SPINP(h),S_CUTB(l)::P(C)
- Refutation
- S(e);
- Try
- Actual
- S(E);
- Threat
- QAR1(G)
- Vars
- S(e);XP(C)::R1(F),XP(h)
- S(e);S_CUTR(c)::S(E)
- S(e);::R1(F),XP(h)
- S(e);N_SPINP(h),S_CUTB(l)::P(C)
- P(i);OGATE::QAR1(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).