MESON Chess Problem Database
Problem Display
PID: 266633 (8/3K1p2/8/1Qpkpn1R/5P2/1p2bP1p/1Bn1P3/1B6 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schweizerische Schachzeitung, 2021
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Bxf4
- 2.e4#
- 1...Sa1
- 2.Be4#
- 1...Se1
- 2.Be4#
- 1...Sa3
- 2.Be4#
- 1...Sb4
- 2.Be4#
- 1...Scd4
- 2.Be4#
- 1...Sg3
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sd6
- 2.Rxe5#
- 1...Sh6
- 2.Rxe5#
- 1...Se7
- 2.Rxe5#
- 1...Sg7
- 2.Rxe5#
- 1...exf4
- 2.Rxf5#
- 1...e4
- 2.Rxf5#
- 1...Bc1
- Tries
- 1.Bxc2?
- threat
- 2.Bxb3#
- 2.Be4#
- 1...Sg3
- 2.Bxb3#
- 2.Rxe5#
- 1...Sd4
- 2.Be4#
- 2.Rxe5#
- 1...Sd6
- 2.Rxe5#
- 1...e4
- 2.Bxb3#
- 2.Bxe4#
- 2.Rxf5#
- 2.fxe4#
- 1...bxc2!
- threat
- 1.Rxf5?
- threat
- 2.Rxe5#
- 1...Bxf4
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...f6!
- threat
- 1.Qd3+?
- 1...Bd4
- 2.e4#
- 1...Sfd4
- 2.Rxe5#
- 1...Scd4!
- 1...Bd4
- 1.Qa4?
- threat
- 2.Qe4#
- 1...c4
- 2.Qc6#
- 1...Bd4
- 2.e4#
- 1...Scd4
- 2.Be4#
- 1...Sg3
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sd6
- 2.Rxe5#
- 1...e4
- 2.Rxf5#
- 2.Qxe4#
- 2.fxe4#
- 1...Sb4!
- threat
- 1.Qa6?
- 1...Bxf4
- 2.e4#
- 1...exf4
- 2.Rxf5#
- 1...c4
- 2.Qc6#
- 1...f6
- 2.Qe6#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bd4
- 2.e4#
- 1...Sa1
- 2.Be4#
- 1...Se1
- 2.Be4#
- 1...Sa3
- 2.Be4#
- 1...Sb4
- 2.Be4#
- 1...Scd4
- 2.Be4#
- 1...Sg3
- 2.Rxe5#
- 1...Sfd4
- 2.Rxe5#
- 1...Sh4
- 2.Rxe5#
- 1...Sd6
- 2.Rxe5#
- 1...Sh6
- 2.Rxe5#
- 1...Se7
- 2.Rxe5#
- 1...Sg7
- 2.Rxe5#
- 1...e4
- 2.Rxf5#
- 1...h2!
- 1...Bxf4
- 1.Bxc2?
- Keys
- 1.Bd4!
- threat
- 2.Qxc5#
- 1...Kxd4
- 2.Qd3#
- 1...Bxd4
- 2.e4#
- 1...Scxd4
- 2.Be4#
- 1...Sfxd4
- 2.Rxe5#
- 1...exd4
- 2.Rxf5#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 17
- Sets
- B(c);OGATE::P(C)
- B(c);OGATE,XP(E)::P(C)
- S(a);OGATE::B(A)
- S(h);OGATE::R1(G),XP(g)
- P(g);OGATEB,P_SPINS(h),XP(E)::R(G),XS(h)
- P(g);OGATEB,P_SPINS(h)::R(G),XS(h)
- Tries
- Try
- B(A);XS(a)
- Threat
- DUALS(2)
- Vars
- S(h);OGATE::R1(G),XP(g)
- Refutation
- P(b);XB(A)
- Try
- R(G);XS(h)
- Threat
- R1(G),XP(g)
- Vars
- B(c);OGATE,XP(E)::P(C)
- B(c);OGATE::P(C)
- Refutation
- P(i);
- Try
- Q(F);CHECK,N_PINP(e)
- Vars
- B(c);OGATE,P_SPINB(c)::P(C)
- S(h);OGATE,P_SPINP(g),P_SPINS(h)::R1(G),XP(g)
- Refutation
- S(a);P_SPINS(a)
- Try
- Q(F);N_PINP(e)
- Threat
- QAB1(F)
- Vars
- P(e);::QAB1(F)
- B(c);OGATE::P(C)
- S(a);OGATE::B(A)
- S(h);OGATE,P_SPINP(g)::R1(G),XP(g)
- Refutation
- S(a);
- Try
- Q(F);N_PINP(e)
- Vars
- B(c);OGATE,XP(E)::P(C)
- P(g);OGATEB,P_SPINS(h),XP(E)::R(G),XS(h)
- P(e);::QAB1(F)
- P(i);N_GUARD::QAB1(F)
- B(c);OGATE::P(C)
- S(a);OGATE::B(A)
- S(h);OGATE,P_SPINP(g)::R1(G),XP(g)
- P(g);OGATEB,P_SPINS(h)::R(G),XS(h)
- Refutation
- P(d);
- Try
- Actual
- B(B);
- Threat
- QAR1(F),XP(e)
- Vars
- K(f);N_SPINP(e),OGATEB,P-FLIGHT,XB(B)::QAR1(F)
- B(c);OGATE,SBLOCK,XB(B)::P(C)
- S(a);OGATE,SBLOCK,XB(B)::B(A)
- S(h);OGATE,SBLOCK,XB(B)::R1(G),XP(g)
- P(g);OGATEB,P_SPINS(h),SBLOCK,XB(B)::R(G),XS(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).