MESON Chess Problem Database
Problem Display
PID: 17650 (6B1/2q2r2/Qb4R1/1Pk3N1/nNP1R3/3P3r/2KB3p/8 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Lunds Dagblad, 1948
#2
11 + 7
| 5395 | Schach fur Nussknacker | 1994 |
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qg3
- 2.Rc6#
- 1...Qf4
- 2.Rc6#
- 1...Qe5
- 2.Rc6#
- 1...Qb8
- 2.Rc6#
- 1...Qd8
- 2.Rc6#
- 1...Qc6
- 2.Rxc6#
- 1...Qa7
- 2.Rc6#
- 1...Qe7
- 2.Rc6#
- 1...Rxd3
- 2.Sxd3#
- 1...Rf1
- 2.d4#
- 1...Rf2
- 2.d4#
- 1...Rf3
- 2.d4#
- 1...Rf4
- 2.d4#
- 1...Rf5
- 2.d4#
- 1...Re7
- 2.d4#
- 1...Rg7
- 2.d4#
- 1...Rh7
- 2.d4#
- 1...Rf8
- 2.d4#
- 1...Ba5
- 2.Se6#
- 1...Ba7
- 2.Se6#
- 1...Qg3
- Tries
- 1.Sd5?
- threat
- 2.Bb4#
- 1...Ba5
- 2.Se6#
- 1...Sc3
- 2.Qa3#
- 1...Rf2!
- threat
- 1.Sc6?
- threat
- 2.Bb4#
- 1...Qxc6
- 2.Rxc6#
- 1...Rf2
- 2.d4#
- 1...Sc3
- 2.Qa3#
- 1...Ba5!
- threat
- 1.Re5+?
- 1...Kd4
- 2.Rd5#
- 1...Qxe5!
- 1...Kd4
- 1.Qb7?
- threat
- 2.Sa6#
- 2.Qd5#
- 1...Rxd3
- 2.Sxd3#
- 2.Sa6#
- 1...Rf6
- 2.Qd5#
- 1...Sc3
- 2.Sa6#
- 1...Qe5
- 2.Sa6#
- 2.Rc6#
- 2.Qc6#
- 1...Qd6
- 2.Sa6#
- 1...Qd8
- 2.Sa6#
- 2.Rc6#
- 2.Qc6#
- 1...Qc6
- 2.Sa6#
- 2.Rxc6#
- 2.Qxc6#
- 1...Qd7
- 2.Sa6#
- 1...Rf5
- 2.Sa6#
- 2.d4#
- 1...Rd7
- 2.Sa6#
- 1...Qxb7!
- threat
- 1.Qxb6+?
- 1...Sxb6
- 2.Sa6#
- 1...Qxb6!
- 1...Sxb6
- 1.Qa8?
- threat
- 2.Sa6#
- 2.Qd5#
- 1...Rxd3
- 2.Sxd3#
- 2.Sa6#
- 1...Rf6
- 2.Qd5#
- 1...Sc3
- 2.Sa6#
- 1...Qe5
- 2.Sa6#
- 2.Rc6#
- 2.Qc6#
- 1...Qd6
- 2.Sa6#
- 1...Qd8
- 2.Sa6#
- 2.Rc6#
- 2.Qc6#
- 1...Qc6
- 2.Sa6#
- 2.Rxc6#
- 2.Qxc6#
- 1...Qa7
- 2.Rc6#
- 2.Qd5#
- 2.Qc6#
- 1...Qd7
- 2.Sa6#
- 1...Qc8
- 2.Qd5#
- 1...Rf5
- 2.Sa6#
- 2.d4#
- 1...Rd7
- 2.Sa6#
- 1...Qb7!
- threat
- 1.Sd5?
- Keys
- 1.Sa2!
- threat
- 2.Bb4#
- 1...Rf2
- 2.d4#
- 1...Ba5
- 2.Se6#
- 1...Sc3
- 2.Qa3#
- threat
- 1.Sa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 18
- Sets
- Q(f);N_GUARD::R1(J)
- Q(f);N_GUARD::R1(J),XQ(f)
- R(b);XP(C)::S(D),XR(b)
- R(g);::P(C)
- R(g);P_PINB(B)::P(C)
- B(e);::S(H)
- Tries
- Try
- S(D);
- Threat
- B(B)
- Vars
- B(e);::S(H)
- S(c);OGATE::QAB(I)
- Refutation
- R(g);P_PINB(B)
- Try
- S(D);
- Threat
- B(B)
- Vars
- Q(f);OGATE,XS(D)::R1(J),XQ(f)
- R(g);P_PINB(B)::P(C)
- S(c);OGATE::QAB(I)
- Refutation
- B(e);
- Try
- R(F);CHECK
- Vars
- K(d);P_PINP(E),S_FLIGHT::R1(F)
- Refutation
- Q(f);XR(F)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(g);::QAR1(I)
- S(c);::S(D)
- Q(f);::S(D)
- R(g);::S(D)
- Refutation
- Q(f);XQ(I)
- Try
- Q(I);CHECK,XB(e)
- Vars
- S(c);XQ(I)::S(D)
- Refutation
- Q(f);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(g);::QAR1(I)
- S(c);::S(D)
- Q(f);::S(D)
- Q(f);::QAR1(I)
- R(g);::S(D)
- Refutation
- Q(f);
- Try
- Actual
- S(D);
- Threat
- B(B)
- Vars
- R(g);P_PINB(B)::P(C)
- B(e);::S(H)
- S(c);OGATE::QAB(I)
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