MESON Chess Problem Database
Problem Display
PID: 164219 (4Nq2/1Bn4Q/8/K1p1r3/1pk5/1p1R4/1B4r1/5N2 w - - 0 1)
van Dijk, Nils Gustav Gerard
Landeszeitung fur die Luneburger Heide, 1996
(First published on Sat Nov 2 1996)
#2
7 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qd6
- 2.Sxd6#
- 1...Qg7
- 2.Sd6#
- 1...Qxf1
- 2.Sd6#
- 1...Qf2
- 2.Sd6#
- 1...Qf3
- 2.Sd6#
- 1...Qf4
- 2.Sd6#
- 1...Qf7
- 2.Sd6#
- 1...Qg8
- 2.Sd6#
- 1...Qh8
- 2.Sd6#
- 1...Rg1
- 2.Sd2#
- 1...Rd2
- 2.Sxd2#
- 1...Rg3
- 2.Sd2#
- 1...Rg4
- 2.Sd2#
- 1...Rgg5
- 2.Sd2#
- 1...Rg7
- 2.Sd2#
- 1...Rg8
- 2.Sd2#
- 1...Re3
- 2.Sxe3#
- 1...Re4
- 2.Qxe4#
- 1...Rd5
- 2.Se3#
- 1...Reg5
- 2.Se3#
- 2.Qe4#
- 1...Rh5
- 2.Se3#
- 2.Qe4#
- 1...Re7
- 2.Sd6#
- 1...Sd5
- 2.Ba6#
- 1...Sa6
- 2.Bxa6#
- 1...Se6
- 2.Ba6#
- 1...Sa8
- 2.Ba6#
- 1...Sxe8
- 2.Ba6#
- 1...Qd6
- Tries
- 1.Bd5+?
- 1...Rxd5
- 2.Se3#
- 1...Sxd5!
- 1...Rxd5
- 1.Ba6+?
- 1...Sb5
- 2.Bxb5#
- 1...Sxa6!
- 1...Sb5
- 1.Rd1?
- threat
- 2.Qd3#
- 1...Qxf1
- 2.Sd6#
- 1...Qd6
- 2.Sxd6#
- 1...Qf3
- 2.Sd6#
- 1...Qf5
- 2.Sd6#
- 1...Rd2
- 2.Sxd2#
- 1...Rg3
- 2.Sd2#
- 1...Re3
- 2.Sxe3#
- 1...Re4
- 2.Qxe4#
- 1...Rd5
- 2.Se3#
- 1...Rf5
- 2.Se3#
- 1...Rg6!
- threat
- 1.Rc3+?
- 1...Kd4
- 2.Rc2#
- 2.Qd3#
- 1...bxc3!
- 1...Kd4
- 1.Rf3?
- threat
- 2.Qd3#
- 1...Qxf3
- 2.Sd6#
- 1...Rg6
- 2.Sd2#
- 1...Qd6
- 2.Sxd6#
- 1...Qf5
- 2.Sd6#
- 1...Rd2
- 2.Sxd2#
- 1...Re3
- 2.Sxe3#
- 1...Re4
- 2.Qxe4#
- 1...Rd5
- 2.Se3#
- 1...Rf5!
- threat
- 1.Rg3?
- threat
- 2.Qd3#
- 1...Qxf1
- 2.Sd6#
- 1...Rxg3
- 2.Sd2#
- 1...Qd6
- 2.Sxd6#
- 1...Qf3
- 2.Sd6#
- 1...Qf5
- 2.Sd6#
- 1...Rd2
- 2.Sxd2#
- 1...Re3
- 2.Sxe3#
- 1...Re4
- 2.Qxe4#
- 1...Rd5
- 2.Se3#
- 1...Rf5!
- threat
- 1.Rh3?
- threat
- 2.Qd3#
- 1...Qxf1
- 2.Sd6#
- 1...Qd6
- 2.Sxd6#
- 1...Qf3
- 2.Sd6#
- 1...Qf5
- 2.Sd6#
- 1...Rd2
- 2.Sxd2#
- 1...Rg3
- 2.Sd2#
- 1...Rg6
- 2.Sd2#
- 1...Re3
- 2.Sxe3#
- 1...Re4
- 2.Qxe4#
- 1...Rd5
- 2.Se3#
- 1...Rf5!
- threat
- 1.Rd7?
- threat
- 2.Qd3#
- 1...Qxf1
- 2.Sd6#
- 1...Rf5
- 2.Se3#
- 1...Qd6
- 2.Sxd6#
- 1...Qf3
- 2.Sd6#
- 1...Rd2
- 2.Sxd2#
- 1...Rg3
- 2.Sd2#
- 1...Rg6
- 2.Sd2#
- 1...Re3
- 2.Sxe3#
- 1...Re4
- 2.Qxe4#
- 1...Rd5
- 2.Se3#
- 1...Sd5
- 2.Ba6#
- 1...Qf5!
- threat
- 1.Rd8?
- threat
- 2.Qd3#
- 1...Qxf1
- 2.Sd6#
- 1...Rf5
- 2.Se3#
- 1...Qd6
- 2.Sxd6#
- 1...Qf3
- 2.Sd6#
- 1...Rd2
- 2.Sxd2#
- 1...Rg3
- 2.Sd2#
- 1...Rg6
- 2.Sd2#
- 1...Re3
- 2.Sxe3#
- 1...Re4
- 2.Qxe4#
- 1...Rd5
- 2.Se3#
- 1...Sd5
- 2.Ba6#
- 1...Qf5!
- threat
- 1.Bd5+?
- Keys
- 1.Rd5!
- threat
- 2.Qd3#
- 1...Qxf1
- 2.Sd6#
- 1...Rxd5
- 2.Se3#
- 1...Sxd5
- 2.Ba6#
- 1...Rf5
- 2.Se3#
- 1...Qf3
- 2.Sd6#
- 1...Qf5
- 2.Sd6#
- 1...Rd2
- 2.Sxd2#
- 1...Rg3
- 2.Sd2#
- 1...Rg6
- 2.Sd2#
- 1...Re3
- 2.Sxe3#
- 1...Re4
- 2.Qxe4#
- threat
- 1.Rd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 17
- Sets
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::S(G)
- Q(h);N_GUARD,XS(A)::S(G)
- R(a);N_GUARD::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(f);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::QAR2(F),XR(f)
- R(f);N_GUARD::S(A)
- R(f);S_CUTQ(h)::S(G)
- S(g);N_GUARD::B(E)
- S(g);N_GUARD::B(E),XS(g)
- S(g);N_GUARD,XS(G)::B(E)
- Tries
- Try
- B(E);CHECK
- Vars
- R(f);XB(E)::S(A)
- Refutation
- S(g);XB(E)
- Try
- B(E);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::B(E),XS(g)
- Refutation
- S(g);XB(E)
- Try
- R(C);
- Threat
- QAB1(F)
- Vars
- Q(h);N_GUARD,XS(A)::S(G)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::S(G)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::S(A)
- R(f);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::QAR2(F),XR(f)
- R(f);N_GUARD::S(A)
- Refutation
- R(a);
- Try
- R(C);CHECK
- Refutation
- P(c);XR(C)
- Try
- R(C);
- Threat
- QAB1(F)
- Vars
- Q(h);N_GUARD,XR(C)::S(G)
- R(a);N_GUARD::S(A)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::S(G)
- R(a);N_GUARD::S(A),XR(a)
- R(f);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::QAR2(F),XR(f)
- R(f);N_GUARD::S(A)
- Refutation
- R(f);
- Try
- R(C);
- Threat
- QAB1(F)
- Vars
- Q(h);N_GUARD,XS(A)::S(G)
- R(a);N_GUARD,XR(C)::S(A)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::S(G)
- R(a);N_GUARD::S(A),XR(a)
- R(f);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::QAR2(F),XR(f)
- R(f);N_GUARD::S(A)
- Refutation
- R(f);
- Try
- R(C);
- Threat
- QAB1(F)
- Vars
- Q(h);N_GUARD,XS(A)::S(G)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::S(G)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::S(A)
- R(f);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::QAR2(F),XR(f)
- R(f);N_GUARD::S(A)
- Refutation
- R(f);
- Try
- R(C);
- Threat
- QAB1(F)
- Vars
- Q(h);N_GUARD,XS(A)::S(G)
- R(f);N_GUARD::S(A)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::S(G)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::S(A)
- R(f);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::QAR2(F),XR(f)
- S(g);N_GUARD::B(E)
- Refutation
- Q(h);
- Try
- R(C);
- Threat
- QAB1(F)
- Vars
- Q(h);N_GUARD,XS(A)::S(G)
- R(f);N_GUARD::S(A)
- Q(h);N_GUARD::S(G),XQ(h)
- Q(h);N_GUARD::S(G)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::S(A)
- R(f);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::QAR2(F),XR(f)
- S(g);N_GUARD::B(E)
- Refutation
- Q(h);
- Try
- Actual
- R(C);
- Threat
- QAB1(F)
- Vars
- Q(h);N_GUARD,XS(A)::S(G)
- R(f);N_GUARD,XR(C)::S(A)
- S(g);N_GUARD,SBLOCK,XR(C)::B(E)
- R(f);N_GUARD::S(A)
- Q(h);N_GUARD::S(G)
- R(a);N_GUARD::S(A),XR(a)
- R(a);N_GUARD::S(A)
- R(f);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::QAR2(F),XR(f)
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