MESON Chess Problem Database
Problem Display
PID: 159739 (7n/3K1pp1/R7/1R1Pk2N/2P1p1Pn/4B3/2B1Q3/qr5r w - - 0 1)
Ahues, Herbert Siegfried Oskar
1st Prize, Sahovski Glasnik, 1964
#2
10 + 9
| 15652 | Tehtavaniekka | 2012 |
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Bf4#
- 1...Rbc1
- 2.d6#
- 1...Rbe1
- 2.d6#
- 1...Rbf1
- 2.d6#
- 1...Rbg1
- 2.d6#
- 1...Rhc1
- 2.Qh2#
- 1...Rd1
- 2.Qh2#
- 1...Rhe1
- 2.Qh2#
- 1...Rh2
- 2.Qxh2#
- 1...f5
- 2.Re6#
- 1...f6
- 2.Re6#
- 1...Qd4
- Tries
- 1.Bg1?
- threat
- 2.Qxe4#
- 1...e3
- 2.Qxe3#
- 1...Re1
- 2.d6#
- 1...f5
- 2.Re6#
- 1...Qd4!
- threat
- 1.Bf2?
- threat
- 2.Qxe4#
- 1...e3
- 2.Qxe3#
- 1...Qd4
- 2.Bg3#
- 1...Rbe1
- 2.d6#
- 1...f5
- 2.Re6#
- 1...Rhe1!
- threat
- 1.Bc5?
- threat
- 2.Qxe4#
- 1...Rhe1
- 2.Qh2#
- 1...Qd4
- 2.Bd6#
- 1...e3
- 2.Qxe3#
- 1...f5
- 2.Re6#
- 1...Rbe1!
- threat
- 1.Bb6?
- threat
- 2.Qxe4#
- 1...Rhe1
- 2.Qh2#
- 1...Qd4
- 2.Bc7#
- 1...Rbe1
- 2.d6#
- 1...e3
- 2.Qxe3#
- 1...f5!
- threat
- 1.Qd3?
- threat
- 2.Bf4#
- 2.Qxe4#
- 1...Qd4
- 2.Bxd4#
- 2.Bf4#
- 2.Qxd4#
- 1...Rbf1
- 2.Qxe4#
- 2.d6#
- 1...Rhf1
- 2.Qxe4#
- 1...Sg2
- 2.Qxe4#
- 1...S4g6
- 2.Qxe4#
- 1...S8g6
- 2.Qxe4#
- 1...f5
- 2.Bf4#
- 2.Re6#
- 1...g5
- 2.Qxe4#
- 1...exd3!
- threat
- 1.Qf2?
- threat
- 2.Bf4#
- 2.Qg3#
- 2.Qf4#
- 1...Rbf1
- 2.Bf4#
- 2.d6#
- 1...Rbg1
- 2.Bf4#
- 2.Qf4#
- 2.d6#
- 1...Rhf1
- 2.Bf4#
- 1...Rhg1
- 2.Bf4#
- 2.Qf4#
- 1...Rh3
- 2.Bf4#
- 2.Qf4#
- 1...Sg2
- 2.Qf5#
- 1...Sf3
- 2.Bf4#
- 2.Qg3#
- 1...Sf5
- 2.Bf4#
- 2.Qf4#
- 2.Qxf5#
- 1...S4g6
- 2.Qf5#
- 1...f5
- 2.Bf4#
- 2.Re6#
- 2.Qf4#
- 1...g5
- 2.Qg3#
- 2.Qf6#
- 1...S8g6!
- threat
- 1.Qg2?
- threat
- 2.Qxe4#
- 2.Qg3#
- 1...Qd4
- 2.Bf4#
- 2.Qg3#
- 1...Rbf1
- 2.Qxe4#
- 2.d6#
- 1...Rbg1
- 2.Qxe4#
- 2.d6#
- 1...Rhf1
- 2.Qxe4#
- 1...Rhg1
- 2.Qxe4#
- 1...Rh3
- 2.Qxe4#
- 1...Sf3
- 2.Qg3#
- 1...Sf5
- 2.Qxe4#
- 1...S4g6
- 2.Qxe4#
- 1...S8g6
- 2.Qxe4#
- 1...f5
- 2.Re6#
- 1...Sxg2!
- threat
- 1.Bg1?
- Keys
- 1.Ba7!
- threat
- 2.Qxe4#
- 1...Rhe1
- 2.Qh2#
- 1...Qd4
- 2.Bb8#
- 1...Rbe1
- 2.d6#
- 1...e3
- 2.Qxe3#
- 1...f5
- 2.Re6#
- threat
- 1.Ba7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(a);P_PINP(G),SBLOCK::B(C)
- R(b);N_GUARD::R(F)+P(G)
- R(c);N_GUARD::QAB(B)
- R(c);N_GUARD,P_PINP(G)::QAB(B)
- R(c);N_GUARD::QAB(B),XR(c)
- P(g);N_GUARD::R1(I)
- Tries
- Try
- B(C);P_PINP(d)
- Threat
- QAR1(B),XP(d)
- Vars
- P(d);OGATEB::QAR2(B),XP(d)
- R(b);N_GUARD::R(F)+P(G)
- P(g);N_GUARD::R1(I)
- Refutation
- Q(a);P_PINP(G)
- Try
- B(C);P_PINP(d)
- Threat
- QAR1(B),XP(d)
- Vars
- P(d);OGATEB::QAR2(B),XP(d)
- Q(a);P_PINP(G),SBLOCK::B(C)
- R(b);N_GUARD::R(F)+P(G)
- P(g);N_GUARD::R1(I)
- Refutation
- R(c);
- Try
- B(C);P_PINP(d)
- Threat
- QAR1(B),XP(d)
- Vars
- R(c);N_GUARD::QAB(B)
- Q(a);P_PINP(G),SBLOCK::B(C)
- P(d);OGATEB::QAR2(B),XP(d)
- P(g);N_GUARD::R1(I)
- Refutation
- R(b);
- Try
- B(C);P_PINP(d)
- Threat
- QAR1(B),XP(d)
- Vars
- R(c);N_GUARD::QAB(B)
- Q(a);P_PINP(G),SBLOCK::B(C)
- R(b);N_GUARD::R(F)+P(G)
- P(d);OGATEB::QAR2(B),XP(d)
- Refutation
- P(g);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(c);::QAR1(B),XP(d)
- S(e);::QAR1(B),XP(d)
- S(i);::QAR1(B),XP(d)
- P(h);::QAR1(B),XP(d)
- Refutation
- P(d);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(c);::B(C)
- S(e);N_GUARD::QAR1(B)
- Refutation
- S(i);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(c);::QAR1(B),XP(d)
- S(e);::QAB(B)
- S(e);::QAR1(B),XP(d)
- S(i);::QAR1(B),XP(d)
- P(g);N_GUARD::R1(I)
- Refutation
- S(e);XQ(B)
- Try
- Actual
- B(C);P_PINP(d)
- Threat
- QAR1(B),XP(d)
- Vars
- R(c);N_GUARD::QAB(B)
- Q(a);P_PINP(G),SBLOCK::B(C)
- R(b);N_GUARD::R(F)+P(G)
- P(d);OGATEB::QAR2(B),XP(d)
- P(g);N_GUARD::R1(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).