MESON Chess Problem Database
Problem Display
PID: 233406 (1rb5/P1N1K1p1/qB6/2PBR2R/3k2r1/p7/2QN1P1n/2n5 w - - 0 1)
Ahues, Herbert Siegfried Oskar
3rd Prize, Freie Presse, 2010
#2
11 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc4
- 2.Qxc4#
- 1...Qb5
- 2.Sxb5#
- 1...Qb7
- 2.Qc4#
- 1...Qa5
- 2.Qc4#
- 1...Qxb6
- 2.Qc4#
- 1...Qxa7
- 2.Qc4#
- 1...Rg1
- 2.Re4#
- 1...Rg2
- 2.Re4#
- 1...Rg3
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 1...Rg5
- 2.Re4#
- 1...Rg6
- 2.Re4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...Sd3
- 2.Sb3#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Qc4
- Tries
- 1.Bh1?
- threat
- 2.Rd5#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Qe2!
- threat
- 1.Ba2?
- threat
- 2.Rd5#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Qe2!
- threat
- 1.Bg2?
- threat
- 2.Rd5#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Qe2!
- threat
- 1.Bb3?
- threat
- 2.Rd5#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Qe2!
- threat
- 1.Bf3?
- threat
- 2.Rd5#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Qe2!
- threat
- 1.Bc4?
- threat
- 2.Rd5#
- 1...Qxc4
- 2.Qxc4#
- 1...Rg5
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Qb7!
- threat
- 1.Be4?
- threat
- 2.Rd5#
- 1...Rxe4
- 2.Rxe4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Rg5!
- threat
- 1.Bc6?
- threat
- 2.Rd5#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Qe2!
- threat
- 1.Be6?
- threat
- 2.Rd5#
- 1...Bxe6
- 2.Sxe6#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Bb7!
- threat
- 1.Bf7?
- threat
- 2.Rd5#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Qe2!
- threat
- 1.Ba8?
- threat
- 2.Rd5#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Qe2!
- threat
- 1.Bg8?
- threat
- 2.Rd5#
- 1...Rg5
- 2.Re4#
- 1...Qc4
- 2.Qxc4#
- 1...Qb7
- 2.Qc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- 1...Bb7
- 2.Se6#
- 1...Qe2!
- threat
- 1.Re3?
- threat
- 2.Qc3#
- 1...Re4+
- 2.Rxe4#
- 2.Qxe4#
- 1...Qc4
- 2.Qxc4#
- 1...Qa5
- 2.Qc4#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sd3
- 2.Sb3#
- 1...Qd3!
- threat
- 1.Qb2+?
- 1...Kd3
- 2.Re3#
- 1...axb2!
- 1...Kd3
- 1.c6+?
- 1...Qxb6
- 2.Qc4#
- 1...Rxb6!
- 1...Qxb6
- 1.axb8S?
- threat
- 2.Sc6#
- 1...Qxb6
- 2.Qc4#
- 1...Qb5
- 2.Sxb5#
- 1...Qb7
- 2.Qc4#
- 1...Qa4
- 2.c6#
- 1...Qa8
- 2.Sb5#
- 2.Qc4#
- 2.c6#
- 1...Rg6
- 2.Re4#
- 1...Bb7
- 2.Se6#
- 1...Bd7!
- threat
- 1.Bh1?
- Keys
- 1.Bb7!
- threat
- 2.Rd5#
- 1...Qxb7
- 2.Qc4#
- 1...Bxb7
- 2.Se6#
- 1...Rg5
- 2.Re4#
- 1...Qe2
- 2.c6#
- 1...Qc4
- 2.Qxc4#
- 1...Re4
- 2.Rxe4#
- 1...Be6
- 2.Sxe6#
- threat
- 1.Bb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 14
- Sets
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD::S(J),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- Q(f);N_GUARD::QAR1(A)
- Q(f);N_GUARD,XB(H)::QAR1(A)
- Q(f);N_GUARD,P_PINS(J),XP(I)::QAR1(A)
- R(e);N_GUARD::R1(F)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- Tries
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- Q(f);P_PINR(F)
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- Q(f);P_PINR(F)
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- Q(f);P_PINR(F)
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- Q(f);P_PINR(F)
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- Q(f);P_PINR(F)
- Try
- B(E);
- Threat
- R1(F)
- Vars
- Q(f);OGATE,XB(E)::QAR1(A),XQ(f)
- R(e);N_GUARD::R1(F)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- Q(f);P_PINS(J)
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);OGATE,P_PINR(F),XB(E)::R1(F),XR(e)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- R(e);
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- Refutation
- Q(f);P_PINR(F)
- Try
- B(E);
- Threat
- R1(F)
- Vars
- B(i);XB(E)::S(J),XB(i)
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- Refutation
- B(i);
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- Q(f);P_PINR(F)
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- Q(f);P_PINR(F)
- Try
- B(E);
- Threat
- R1(F)
- Vars
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
- B(i);N_GUARD::S(J)
- Refutation
- Q(f);P_PINR(F)
- Try
- R(F);
- Threat
- QAB1(A)
- Vars
- Q(f);N_GUARD::QAR1(A),XQ(f)
- Q(f);N_GUARD::QAR1(A)
- S(a);N_GUARD::S(B)
- Refutation
- Q(f);
- Try
- Q(A);CHECK
- Vars
- K(d);P-FLIGHT::R1(F)
- Refutation
- P(c);XQ(A)
- Try
- P(D);CHECK
- Vars
- Q(f);XB(H)::QAR1(A)
- Refutation
- R(h);XB(H)
- Try
- P(I);XR(h)
- Threat
- S(I)
- Vars
- Q(f);N_GUARD,XB(H)::QAR1(A)
- Q(f);N_GUARD::S(J),XQ(f)
- Q(f);N_GUARD,P_PINS(J)::QAR1(A)
- Q(f);N_GUARD::B(H)+P(D)
- R(e);N_GUARD::R1(F)
- B(i);N_GUARD::S(J)
- Refutation
- B(i);
- Try
- Actual
- B(E);
- Threat
- R1(F)
- Vars
- Q(f);N_GUARD,P_PINS(J),XB(E)::QAR1(A)
- B(i);N_GUARD,XB(E)::S(J)
- R(e);N_GUARD::R1(F)
- Q(f);N_GUARD,P_PINR(F)::B(H)+P(D)
- Q(f);N_GUARD::QAR1(A),XQ(f)
- R(e);N_GUARD,P_PINR(F)::R1(F),XR(e)
- B(i);N_GUARD::S(J),XB(i)
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).