MESON Chess Problem Database
Problem Display
PID: 161298 (7K/6BB/nQ1pPR2/r3k2N/5p2/2N1p2b/8/6r1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
The Problemist, 1978
#2
8 + 8
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rga1
- 2.Rh6#
- 1...Rb1
- 2.Rh6#
- 1...Rc1
- 2.Rh6#
- 1...Rd1
- 2.Rh6#
- 1...Re1
- 2.Rh6#
- 1...Rf1
- 2.Rh6#
- 1...Rh1
- 2.Rh6#
- 1...Bg2
- 2.Rh6#
- 1...Bg4
- 2.Rh6#
- 1...Bf5
- 2.Rg6#
- 1...Bxe6
- 2.Rf5#
- 1...f3
- 2.Qxe3#
- 1...d5
- 2.Rf5#
- 1...Rga1
- Tries
- 1.Sg3?
- threat
- 2.Rg6#
- 2.Rh6#
- 1...fxg3
- 2.Qxe3#
- 1...f3
- 2.Qxe3#
- 1...Rxg3!
- threat
- 1.Sxf4?
- threat
- 2.Sd3#
- 2.Rf5#
- 2.Qxe3#
- 1...Rc5
- 2.Rf5#
- 1...Bf5
- 2.Rxf5#
- 1...Sc5
- 2.Rf5#
- 1...Rd1
- 2.Sg6#
- 2.Rf5#
- 2.Rf7#
- 2.Rf8#
- 2.Qxe3#
- 1...Re1
- 2.Sd3#
- 2.Sg6#
- 2.Rf5#
- 2.Rf7#
- 2.Rf8#
- 1...Rg3
- 2.Sd3#
- 2.Rf5#
- 1...Rg6
- 2.Sd3#
- 2.Sxg6#
- 2.Qxe3#
- 1...Ra4
- 2.Sd3#
- 2.Rf5#
- 1...Rd5
- 2.Rf5#
- 2.Qxe3#
- 1...Bf1
- 2.Rf5#
- 2.Qxe3#
- 1...Bg2
- 2.Sd3#
- 2.Sg6#
- 2.Rf5#
- 2.Rf7#
- 2.Rf8#
- 1...Sb4
- 2.Rf5#
- 2.Qxe3#
- 1...e2
- 2.Sd3#
- 2.Rf5#
- 2.Qe3#
- 1...d5
- 2.Sd3#
- 2.Rf5#
- 1...Rxg7!
- threat
- 1.Bc2?
- threat
- 2.Rg6#
- 1...Rg6
- 2.Rxg6#
- 1...Rxg7!
- threat
- 1.Bd3?
- threat
- 2.Rg6#
- 1...Rg6
- 2.Rxg6#
- 1...Rxg7!
- threat
- 1.Be4?
- threat
- 2.Rg6#
- 1...Rg6
- 2.Rxg6#
- 1...Rxg7!
- threat
- 1.Rxf4+?
- 1...Rxg7
- 2.Re4#
- 2.Qxe3#
- 1...Kxe6!
- 1...Rxg7
- 1.Qxa5+?
- 1...Kd4
- 2.Rxf4#
- 1...d5
- 2.Qxd5#
- 1...Sc5!
- 1...Kd4
- 1.e7?
- threat
- 2.Qxd6#
- 1...Rd1
- 2.Rxd6#
- 2.Rh6#
- 1...Be6
- 2.Rf5#
- 1...d5
- 2.Rf5#
- 2.Re6#
- 1...Rd5!
- threat
- 1.Sg3?
- Keys
- 1.Qc6!
- threat
- 2.Qe4#
- 1...Kd4
- 2.Rxf4#
- 1...Ra4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Bg2
- 2.Rh6#
- 1...Bf5
- 2.Rg6#
- 1...Sc5
- 2.Qd5#
- 1...d5
- 2.Rf5#
- threat
- 1.Qc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 10
- Sets
- R(a);N_GUARD::B(F)+R(E)
- B(c);S_CUTR(a)::B(F)+R(E)
- B(c);SBLOCK::B(F)+R(E)
- B(c);SBLOCK,XP(D)::B(F)+R(E),DCHECK
- P(d);N_GUARD::QAR2(C),XP(b)
- P(h);::B(F)+R(E),DCHECK
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- P(d);N_GUARD,XS(B)::QAR2(C),XP(b)
- P(d);N_GUARD::QAR2(C),XP(b)
- Refutation
- R(a);XS(B)
- Try
- S(B);XP(d)
- Threat
- DUALS(3)
- Vars
- R(e);::B(F)+R(E),DCHECK
- B(c);::B(F)+R(E),DCHECK,XB(c)
- S(g);::B(F)+R(E),DCHECK
- Refutation
- R(a);XB(F)
- Try
- B(G);
- Threat
- B(F)+R(E)
- Vars
- R(a);::B(F)+R(E),XR(a)
- Refutation
- R(a);XB(F)
- Try
- B(G);
- Threat
- B(F)+R(E)
- Vars
- R(a);::B(F)+R(E),XR(a)
- Refutation
- R(a);XB(F)
- Try
- B(G);
- Threat
- B(F)+R(E)
- Vars
- R(a);::B(F)+R(E),XR(a)
- Refutation
- R(a);XB(F)
- Try
- R(E);CHECK,XP(d)
- Refutation
- K(f);P-FLIGHT,P_SPINP(h),XP(D)
- Try
- Q(C);CHECK,XR(e)
- Vars
- K(f);S_FLIGHT::B(F)+R(E),DCHECK,XP(d)
- P(h);P_SPINP(h)::QAR1(C),XP(h)
- Refutation
- S(g);P_SPINS(g)
- Try
- P(D);
- Threat
- QAB1(C),XP(h)
- Vars
- B(c);SBLOCK::B(F)+R(E),DCHECK
- Refutation
- R(e);
- Try
- Actual
- Q(C);
- Threat
- QAR1(C)
- Vars
- K(f);S_FLIGHT::B(F)+R(E),DCHECK,XP(d)
- R(e);N_GUARD::QAR1(C)
- R(e);N_GUARD::QAR1(C),XR(e)
- B(c);S_CUTR(a)::B(F)+R(E)
- B(c);SBLOCK::B(F)+R(E)
- S(g);S_CUTR(e)::QAR1(C)
- P(h);::B(F)+R(E),DCHECK
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).