MESON Chess Problem Database
Problem Display
PID: 164028 (1brn4/5r1p/6pK/R2p2QN/R2Pk3/4Np2/b3P3/6BB w - - 0 1)
Ahues, Herbert Siegfried Oskar
stern, 1997
(First published on Thu Mar 13 1997)
#2
10 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Sg3#
- 1...Rf6
- 2.Sxf6#
- 1...Ra7
- 2.Sf6#
- 2.Bxf3#
- 1...Rb7
- 2.Sf6#
- 2.Bxf3#
- 1...Rfc7
- 2.Sg3#
- 2.Sf6#
- 2.Bxf3#
- 2.Qf4#
- 2.Qh4#
- 2.Qg4#
- 2.Qe5#
- 1...Rd7
- 2.Sf6#
- 2.Bxf3#
- 1...Re7
- 2.Sf6#
- 2.Bxf3#
- 1...Rg7
- 2.Sf6#
- 2.Bxf3#
- 1...Rc4
- 2.Qxd5#
- 1...Rcc7
- 2.Sg3#
- 2.Qe5#
- 1...Bb1
- 2.Qxd5#
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Bxf3#
- 1...Be5
- 2.Qxe5#
- 1...Ba7
- 2.Sg3#
- 2.Qe5#
- 1...Rf4
- Tries
- 1.Sf1?
- threat
- 2.Sd2#
- 1...Bf4
- 2.Bxf3#
- 1...Rc2!
- threat
- 1.Sc4?
- threat
- 2.Sd2#
- 2.Qxd5#
- 1...Rxc4
- 2.Qxd5#
- 1...dxc4
- 2.Qe3#
- 2.Qd5#
- 1...gxh5
- 2.Sd2#
- 1...Rf5
- 2.Sd2#
- 2.Qe3#
- 1...Rd7
- 2.Sd2#
- 2.Sf6#
- 2.Bxf3#
- 1...Rc5
- 2.Sd2#
- 1...Bf4
- 2.Bxf3#
- 1...Be5
- 2.Sd2#
- 2.Qxe5#
- 1...Bxc4!
- threat
- 1.Sg4?
- threat
- 2.Sf2#
- 1...Rf4
- 2.Sg3#
- 1...Rc4
- 2.Qxd5#
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Bxf3#
- 1...Bc4!
- threat
- 1.Sf5?
- threat
- 2.Bxf3#
- 1...Rxf5
- 2.Qe3#
- 1...Rc3!
- threat
- 1.Qf4+?
- 1...Rxf4
- 2.Sg3#
- 1...Bxf4+!
- 1...Rxf4
- 1.Qh4+?
- 1...Rf4
- 2.Sg3#
- 2.Sf6#
- 2.Bxf3#
- 1...Bf4+!
- 1...Rf4
- 1.Qe7+?
- 1...Rxe7
- 2.Bxf3#
- 1...Be5
- 2.Qxe5#
- 1...Se6!
- 1...Rxe7
- 1.Qg4+?
- 1...Rf4
- 2.Sg3#
- 2.Sf6#
- 2.Bxf3#
- 1...Bf4+!
- 1...Rf4
- 1.Qf5+?
- 1...gxf5
- 2.Bxf3#
- 1...Rxf5!
- 1...gxf5
- 1.Qxg6+?
- 1...Rf5
- 2.Bxf3#
- 2.Qxf5#
- 1...hxg6!
- 1...Rf5
- 1.Sf1?
- Keys
- 1.Sd1!
- threat
- 2.Sf2#
- 1...Rf4
- 2.Sg3#
- 1...Rc4
- 2.Qxd5#
- 1...Bc4
- 2.Sc3#
- 1...Bg3
- 2.Sxg3#
- 1...Bf4
- 2.Bxf3#
- threat
- 1.Sd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(f);S_CUTB(h)::S(I)
- R(f);N_GUARD::S(I),XR(f)
- R(i);S_CUTB(a)::QAB1(H),XP(d)
- B(a);N_GUARD::QAB1(H),XP(d)
- B(h);N_GUARD::S(I),XB(h)
- B(h);P_PINQ(H),S_CUTR(f)::B(B),XP(b)
- B(h);N_GUARD::QAR1(H),XB(h)
- Tries
- Try
- S(D);
- Threat
- S(D)
- Vars
- B(h);P_PINQ(H),S_CUTR(f)::B(B),XP(b)
- Refutation
- R(i);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(i);XS(D)::QAB1(H),XP(d)
- P(e);XS(I)::S(D)
- R(i);::S(D)
- B(h);P_PINQ(H),S_CUTR(f)::B(B),XP(b)
- Refutation
- B(a);XS(D)
- Try
- S(D);
- Threat
- S(D)
- Vars
- R(f);S_CUTB(h)::S(I)
- R(i);S_CUTB(a)::QAB1(H),XP(d)
- B(h);N_GUARD::S(I),XB(h)
- B(h);P_PINQ(H),S_CUTR(f)::B(B),XP(b)
- Refutation
- B(a);
- Try
- S(D);
- Threat
- B(B),XP(b)
- Vars
- R(f);SBLOCK,XS(D)::QAR1(H)
- Refutation
- R(i);
- Try
- Q(H);CHECK
- Vars
- R(f);SBLOCK,XQ(H)::S(I)
- Refutation
- B(h);CHECK,XQ(H)
- Try
- Q(H);CHECK
- Refutation
- B(h);CHECK,P_SPINB(h)
- Try
- Q(H);CHECK
- Vars
- R(f);XQ(H)::B(B),XP(b)
- B(h);N_GUARD,P_SPINB(h)::QAR1(H),XB(h)
- Refutation
- S(j);P_SPINS(j)
- Try
- Q(H);CHECK
- Refutation
- B(h);CHECK,P_SPINB(h)
- Try
- Q(H);CHECK
- Vars
- P(e);XQ(H)::B(B),XP(b)
- Refutation
- R(f);XQ(H)
- Try
- Q(H);CHECK,XP(e)
- Refutation
- P(g);XQ(H)
- Try
- Actual
- S(D);
- Threat
- S(D)
- Vars
- R(f);S_CUTB(h)::S(I)
- R(i);S_CUTB(a)::QAB1(H),XP(d)
- B(a);S_CUTR(i)::S(D)
- B(h);N_GUARD::S(I),XB(h)
- B(h);P_PINQ(H),S_CUTR(f)::B(B),XP(b)
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