MESON Chess Problem Database
Problem Display
PID: 160566 (1b6/1B3K2/1R2N3/r3k3/3N2P1/1Qp5/r4p2/3RnnB1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Tidskrift for Schack, 1971
#2
9 + 8
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Qd5#
- 2.Qb5#
- 1...Ra4
- 2.Qd5#
- 2.Qb5#
- 1...Rb5
- 2.Qxb5#
- 1...Rd5
- 2.Qxd5#
- 1...Ra6
- 2.Qd5#
- 2.Qb5#
- 1...Ra7
- 2.Qd5#
- 2.Qb5#
- 1...Ra8
- 2.Qd5#
- 2.Qb5#
- 1...Sc2
- 2.Sf3#
- 1...Sg2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sd2
- 2.Bh2#
- 1...Sh2
- 2.Bxh2#
- 1...Se3
- 2.Bh2#
- 1...Ra3
- Tries
- 1.Sb5?
- threat
- 2.Qd5#
- 2.Qxc3#
- 1...Rxb5
- 2.Rxb5#
- 2.Qxc3#
- 2.Qxb5#
- 1...fxg1Q
- 2.Qd5#
- 1...fxg1B
- 2.Qd5#
- 1...Rc2
- 2.Qd5#
- 1...R2a3
- 2.Qd5#
- 1...R2a4
- 2.Qd5#
- 1...R5a3
- 2.Qd5#
- 1...R5a4
- 2.Qd5#
- 1...Sc2
- 2.Qd5#
- 1...Sf3
- 2.Qd5#
- 1...Se3
- 2.Bh2#
- 2.Qxc3#
- 1...c2
- 2.Qd5#
- 2.Qc3#
- 1...Rd2!
- threat
- 1.Bh2+?
- 1...Sg3
- 2.Bxg3#
- 1...Sxh2!
- 1...Sg3
- 1.Rxe1+?
- 1...Re2
- 2.Sf3#
- 1...Se3
- 2.Sf3#
- 2.Bh2#
- 2.Rxe3#
- 1...fxe1Q
- 2.Sf3#
- 1...fxe1B
- 2.Sf3#
- 1...fxe1R
- 2.Sf3#
- 1...fxe1S!
- 1...Re2
- 1.Rb5+?
- 1...Kd6
- 2.Sf5#
- 2.Qd5#
- 1...Rxb5!
- 1...Kd6
- 1.Qc2?
- threat
- 2.Sc6#
- 2.Qe4#
- 2.Qf5#
- 1...Sxc2
- 2.Sf3#
- 1...Rc5
- 2.Qe4#
- 2.Qf5#
- 1...Rd5
- 2.Qf5#
- 1...Sd3
- 2.Sf3#
- 1...Sd2
- 2.Bh2#
- 2.Qf5#
- 1...Se3
- 2.Sc6#
- 2.Bh2#
- 2.Qe4#
- 1...Sg3
- 2.Sc6#
- 1...Rxc2!
- threat
- 1.Qc4?
- threat
- 2.Sc6#
- 1...Rd5
- 2.Qxd5#
- 1...Rc5
- 2.Qxc5#
- 1...Sd3
- 2.Sf3#
- 1...Sd2
- 2.Bh2#
- 1...Rd2!
- threat
- 1.Qxc3?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 1...fxg1Q
- 2.Sf3#
- 1...fxg1B
- 2.Sf3#
- 1...Rd2
- 2.Sf3#
- 2.Qxa5#
- 1...Rc2
- 2.Sxc2#
- 2.Sf3#
- 1...Re2
- 2.Sc2#
- 2.Sxe2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Qxa5#
- 1...R2a3
- 2.Sb3#
- 2.Sf3#
- 1...R2a4
- 2.Sf3#
- 1...R5a3
- 2.Sb3#
- 2.Sf3#
- 2.Qc5#
- 1...R5a4
- 2.Sf3#
- 2.Qc5#
- 1...Rb5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sxb5#
- 2.Sf5#
- 1...Rc5
- 2.Sf3#
- 2.Qxc5#
- 1...Sc2
- 2.Sxc2#
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Rd5!
- threat
- 1.Sb5?
- Keys
- 1.Qb4!
- threat
- 2.Sc6#
- 1...Rd2
- 2.Qxa5#
- 1...Rc5
- 2.Qxc5#
- 1...Sd3
- 2.Sf3#
- 1...Sd2
- 2.Bh2#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(f);N_GUARD::QAR(C),XR(f)
- R(f);N_GUARD::QAR1(C),XR(f)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(b);N_GUARD::B(B)
- S(b);N_GUARD::B(B),XS(b)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(d);XB(B)::QAR1(C)
- R(c);::QAR1(C)
- R(f);::QAR1(C)
- S(a);::QAR1(C)
- Refutation
- R(c);
- Try
- B(B);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::B(B),XS(b)
- Refutation
- S(b);XB(B)
- Try
- R(A);CHECK,XS(a)
- Vars
- R(c);P_SPINR(c)::S(D)
- P(d);XR(A)::S(D)
- Refutation
- P(d);XR(A)
- Try
- R(F);CHECK
- Refutation
- R(f);XR(F)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- S(a);N_GUARD,XQ(C)::S(D)
- R(f);::QAR1(C)
- S(a);N_GUARD::S(D)
- S(b);::S(D)
- Refutation
- R(c);XQ(C)
- Try
- Q(C);
- Threat
- S(D)
- Vars
- R(f);N_GUARD::QAR1(C),XR(f)
- R(f);N_GUARD::QAR2(C),XR(f)
- S(a);N_GUARD::S(D)
- S(b);N_GUARD::B(B)
- Refutation
- R(c);
- Try
- Q(C);XP(e)
- Threat
- DUALS(6)
- Vars
- P(d);XB(B)::QAB(C)+S(D),DCHECK
- R(c);::QAB(C)+S(D),DCHECK
- S(a);::QAB(C)+S(D),DCHECK,XS(a)
- Refutation
- R(f);
- Try
- Actual
- Q(C);
- Threat
- S(D)
- Vars
- R(c);N_GUARD::QAR(C),XR(f)
- R(f);N_GUARD::QAR2(C),XR(f)
- S(a);N_GUARD::S(D)
- S(b);N_GUARD::B(B)
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).