MESON Chess Problem Database
Problem Display
PID: 160792 (qn6/p1N1B3/r4R1b/r2pk1p1/p7/2PB1pNb/3Q2n1/2K5 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schach-Echo, 1972
#2
8 + 13
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Bf5
- 2.Rxf5#
- 1...Se1
- 2.Qxe1#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sh4
- 2.Qe1#
- 2.Qe3#
- 1...g4
- 2.Rf5#
- 1...Bf5
- Tries
- 1.Bb1?
- threat
- 2.Qd4#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4
- 2.Rf5#
- 1...Sc6!
- threat
- 1.Bf1?
- threat
- 2.Qd4#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4
- 2.Rf5#
- 1...Sc6!
- threat
- 1.Bc2?
- threat
- 2.Qd4#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4
- 2.Rf5#
- 1...Sc6!
- threat
- 1.Be2?
- threat
- 2.Qd4#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4
- 2.Rf5#
- 1...Sc6!
- threat
- 1.Bc4?
- threat
- 2.Qd4#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4
- 2.Rf5#
- 1...Sc6!
- threat
- 1.Bf5?
- threat
- 2.Qd4#
- 1...Sc6
- 2.Re6#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4!
- threat
- 1.Bxa6?
- threat
- 2.Qd4#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4
- 2.Rf5#
- 2.Re6#
- 1...Sc6!
- threat
- 1.Bg6?
- threat
- 2.Qd4#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4
- 2.Rf5#
- 1...Sc6!
- threat
- 1.Bh7?
- threat
- 2.Qd4#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4
- 2.Rf5#
- 1...Sc6!
- threat
- 1.Qe1+?
- 1...Se3
- 2.Qxe3#
- 1...Sxe1!
- 1...Se3
- 1.Qxg5+?
- 1...Bf5
- 2.Rxf5#
- 1...Bxg5+!
- 1...Bf5
- 1.Qe2+?
- 1...Se3
- 2.Qxe3#
- 1...fxe2!
- 1...Se3
- 1.Bb1?
- Keys
- 1.Bb5!
- threat
- 2.Qd4#
- 1...Sc6
- 2.Qxd5#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...g4
- 2.Rf5#
- threat
- 1.Bb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- B(c);N_GUARD::R1(F),XB(c)
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- P(h);P_PINQ(B),S_CUTB(c)::R1(F)
- Tries
- Try
- B(D);
- Threat
- QAB1(B)
- Vars
- P(h);P_PINQ(B),S_CUTB(c)::R1(F)
- Refutation
- S(m);
- Try
- B(D);
- Threat
- QAB1(B)
- Vars
- P(h);P_PINQ(B),S_CUTB(c)::R1(F)
- Refutation
- S(m);
- Try
- B(D);
- Threat
- QAB1(B)
- Vars
- P(h);P_PINQ(B),S_CUTB(c)::R1(F)
- Refutation
- S(m);
- Try
- B(D);
- Threat
- QAB1(B)
- Vars
- P(h);P_PINQ(B),S_CUTB(c)::R1(F)
- Refutation
- S(m);
- Try
- B(D);
- Threat
- QAB1(B)
- Vars
- P(h);P_PINQ(B),S_CUTB(c)::R1(F)
- Refutation
- S(m);
- Try
- B(D);
- Threat
- QAB1(B)
- Vars
- S(m);S_CUTR(i)::R1(F)
- Refutation
- P(h);P_PINQ(B)
- Try
- B(D);XR(i)
- Threat
- QAB1(B)
- Refutation
- S(m);
- Try
- B(D);
- Threat
- QAB1(B)
- Vars
- P(h);P_PINQ(B),S_CUTB(c)::R1(F)
- Refutation
- S(m);
- Try
- B(D);
- Threat
- QAB1(B)
- Vars
- P(h);P_PINQ(B),S_CUTB(c)::R1(F)
- Refutation
- S(m);
- Try
- Q(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR2(B),XS(a)
- Refutation
- S(a);XQ(B)
- Try
- Q(B);CHECK,P_SPINQ(B),XP(h)
- Vars
- B(c);N_GUARD,P_SPINB(c)::R1(F),XB(c)
- Refutation
- B(j);CHECK,XQ(B)
- Try
- Q(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR2(B),XS(a)
- Refutation
- P(b);XQ(B)
- Try
- Actual
- B(D);
- Threat
- QAB1(B)
- Vars
- S(m);S_CUTQ(l)::QAR1(B),XP(f)
- P(h);P_PINQ(B),S_CUTB(c)::R1(F)
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).