MESON Chess Problem Database
Problem Display
PID: 187275 (3r4/2Q1b3/p4p1r/K1p1RB1q/2PkNNn1/2pP4/4bn2/2B5 w - - 0 1)
von Alvensleben, Wichard Udo Reinhard
Die Welt, 2001
(First published on Fri Aug 31 2001)
#2
9 + 12
| 16210 | Problemschach-Jahrbuch (2001) | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Qxc5#
- 1...Ra8
- 2.Rd5#
- 1...Rb8
- 2.Rd5#
- 1...Rc8
- 2.Rd5#
- 1...Re8
- 2.Rd5#
- 1...Rf8
- 2.Rd5#
- 1...Rg8
- 2.Rd5#
- 1...Rh8
- 2.Rd5#
- 1...Bd6
- 2.Rd5#
- 1...Sxe4
- 2.Rxe4#
- 1...Rd5
- Tries
- 1.Sd2?
- threat
- 2.Sb3#
- 2.Sxe2#
- 2.Se6#
- 1...Qxf5
- 2.Sb3#
- 1...Bxd3
- 2.Se6#
- 1...Sxd3
- 2.Sxe2#
- 2.Se6#
- 2.Re4#
- 1...Sxe5
- 2.Sb3#
- 1...cxd2
- 2.Sxe2#
- 2.Bb2#
- 1...fxe5
- 2.Sb3#
- 1...Rd6
- 2.Qxc5#
- 1...Se4
- 2.Sb3#
- 2.Rxe4#
- 1...c2
- 2.Sxe2#
- 2.Bb2#
- 1...Qf7
- 2.Sb3#
- 2.Sxe2#
- 1...Rb8
- 2.Sxe2#
- 2.Se6#
- 1...Bd1
- 2.Se6#
- 1...Bf1
- 2.Sb3#
- 2.Sf3#
- 2.Se6#
- 1...Bf3
- 2.Sb3#
- 2.Sxf3#
- 2.Se6#
- 1...Sh2
- 2.Sb3#
- 2.Se6#
- 1...Se3
- 2.Sb3#
- 2.Se6#
- 1...Bd6!
- threat
- 1.Sxf2?
- threat
- 2.Sxe2#
- 2.Se6#
- 2.Re4#
- 1...Qxf5
- 2.Sxe2#
- 1...Sxf2
- 2.Se6#
- 2.Be3#
- 1...Sxe5
- 2.Se6#
- 1...fxe5
- 2.Sxe2#
- 1...Rd6
- 2.Re4#
- 2.Qxc5#
- 1...Bd6
- 2.Re4#
- 2.Rd5#
- 1...c2
- 2.Sxe2#
- 2.Bb2#
- 1...Qf7
- 2.Sxe2#
- 2.Re4#
- 1...Qh1
- 2.Sxe2#
- 2.Se6#
- 1...Bd1
- 2.Se6#
- 2.Re4#
- 1...Bf1
- 2.Se6#
- 2.Re4#
- 1...Bf3
- 2.Se6#
- 1...Sh2
- 2.Se6#
- 2.Be3#
- 2.Re4#
- 1...Se3
- 2.Se6#
- 2.Bxe3#
- 2.Re4#
- 1...Bxd3!
- threat
- 1.Sg3?
- threat
- 2.Sgxe2#
- 2.Sfxe2#
- 2.Se6#
- 1...Qxf5
- 2.Sgxe2#
- 2.Sxf5#
- 1...Sxd3
- 2.Re4#
- 1...Sxe5
- 2.Se6#
- 1...fxe5
- 2.Sgxe2#
- 2.Sfxe2#
- 1...Rd6
- 2.Qxc5#
- 1...Bd6
- 2.Rd5#
- 1...c2
- 2.Sgxe2#
- 2.Sfxe2#
- 2.Bb2#
- 1...Qf7
- 2.Sgxe2#
- 2.Sfxe2#
- 1...Bd1
- 2.Se6#
- 1...Bf1
- 2.Se6#
- 1...Bf3
- 2.Se6#
- 1...Se4
- 2.Sgxe2#
- 2.Rxe4#
- 1...Sh2
- 2.Se6#
- 2.Be3#
- 1...Se3
- 2.Se6#
- 2.Bxe3#
- 1...Bxd3!
- threat
- 1.Sxc5?
- threat
- 2.Sxe2#
- 2.Sfe6#
- 2.Sb3#
- 2.Sce6#
- 1...Qxf5
- 2.Sxe2#
- 2.Sb3#
- 1...Bxd3
- 2.Sb3#
- 2.Sce6#
- 1...Bxc5
- 2.Sxe2#
- 2.Se6#
- 2.Qxc5#
- 1...Sxd3
- 2.Sb3#
- 2.Sce6#
- 2.Re4#
- 1...Sxe5
- 2.Sfe6#
- 2.Sb3#
- 2.Sce6#
- 1...fxe5
- 2.Sxe2#
- 2.Sb3#
- 1...Bd6
- 2.Rd5#
- 1...c2
- 2.Sxe2#
- 2.Bb2#
- 1...Qf7
- 2.Sxe2#
- 2.Sb3#
- 1...Rd5
- 2.Sxe2#
- 2.Se6#
- 2.Rxd5#
- 1...Rb8
- 2.Sxe2#
- 2.Sfe6#
- 2.Sce6#
- 2.Rd5#
- 1...Bd1
- 2.Sfe6#
- 2.Sce6#
- 1...Bf1
- 2.Sfe6#
- 2.Sb3#
- 2.Sce6#
- 1...Bf3
- 2.Sfe6#
- 2.Sb3#
- 2.Sce6#
- 1...Sh2
- 2.Sfe6#
- 2.Sb3#
- 2.Sce6#
- 2.Be3#
- 1...Se3
- 2.Sfe6#
- 2.Sb3#
- 2.Sce6#
- 2.Bxe3#
- 1...Rd6!
- threat
- 1.Sg5?
- threat
- 2.Sxe2#
- 2.Sfe6#
- 2.Sge6#
- 1...Qxg5
- 2.Sxe2#
- 2.Se6#
- 1...Sxd3
- 2.Re4#
- 1...Sxe5
- 2.Sfe6#
- 2.Sge6#
- 1...fxe5
- 2.Sxe2#
- 1...fxg5
- 2.Sxe2#
- 1...Rd6
- 2.Qxc5#
- 1...Bd6
- 2.Rd5#
- 1...c2
- 2.Sxe2#
- 2.Bb2#
- 1...Qf7
- 2.Sxe2#
- 1...Bd1
- 2.Sfe6#
- 2.Sge6#
- 1...Bf1
- 2.Sfe6#
- 2.Sf3#
- 2.Sge6#
- 1...Bf3
- 2.Sfe6#
- 2.Sxf3#
- 2.Sge6#
- 1...Se4
- 2.Sge6#
- 2.Rxe4#
- 1...Sh2
- 2.Sfe6#
- 2.Sge6#
- 2.Be3#
- 1...Se3
- 2.Sfe6#
- 2.Sge6#
- 2.Bxe3#
- 1...Bxd3!
- threat
- 1.Qd6+?
- 1...Bxd6
- 2.Rd5#
- 1...Rxd6!
- 1...Bxd6
- 1.Qxd8+?
- 1...Kxe5
- 2.Qd5#
- 1...Bd6
- 2.Rd5#
- 2.Qxd6#
- 1...Bxd8+!
- 1...Kxe5
- 1.Qxe7?
- threat
- 2.Qxc5#
- 1...Sxe4
- 2.Rxe4#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Qxd6#
- 1...Rc8
- 2.Rd5#
- 2.Qd6#
- 1...Sxd3!
- threat
- 1.Sd2?
- Keys
- 1.Sd6!
- threat
- 2.Rd5#
- 2.Qxc5#
- 1...Kxe5
- 2.Qxc5#
- 1...Qxf5
- 2.Sxf5#
- 2.Qxc5#
- 1...Rxd6
- 2.Qxc5#
- 1...Bxd6
- 2.Rd5#
- 1...Sxd3
- 2.Re4#
- 2.Rd5#
- 1...Sxe5
- 2.Se6#
- 1...fxe5
- 2.Sxe2#
- 1...c2
- 2.Bb2#
- 1...Qf7
- 2.Qxc5#
- 1...Qh1
- 2.Qxc5#
- 1...Rc8
- 2.Rd5#
- 1...Bf3
- 2.Qxc5#
- 1...Se4
- 2.Rxe4#
- 2.Rd5#
- 1...Se3
- 2.Qxc5#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 8
- Sets
- R(l);N_GUARD::R1(G),XR(l)
- R(l);S_CUTB(k)::QAB1(I),XP(f)
- R(l);N_GUARD::R1(G)
- B(k);S_CUTR(l)::R1(G)
- S(b);OGATE,XS(D)::R1(G),XS(b)
- Tries
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- Q(g);XB(H)::S(D)
- B(a);XP(B)::S(E)
- S(e);XR(G)::S(D)
- P(i);XR(G)::S(D)
- R(l);S_CUTB(k)::QAB1(I),XP(f)
- B(a);::S(E)
- Refutation
- B(k);
- Try
- S(D);XS(b)
- Threat
- DUALS(3)
- Vars
- Q(g);XB(H)::S(E),XB(a)
- S(e);XR(G)::S(E)
- P(i);XR(G)::S(E),XB(a)
- B(a);::S(E)
- Refutation
- B(a);XP(B)
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD,XP(B)::R1(G)
- S(e);XR(G)::S(E)
- R(l);S_CUTB(k)::QAB1(I),XP(f)
- B(k);S_CUTR(l)::R1(G)
- B(a);::S(E)
- Refutation
- B(a);XP(B)
- Try
- S(D);XP(f)
- Threat
- DUALS(4)
- Vars
- B(k);S_CUTR(l)::R1(G)
- Refutation
- R(l);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD,XP(B)::R1(G)
- P(i);XR(G)::S(E),XB(a)
- P(i);XS(D)::S(E),XB(a)
- R(l);S_CUTB(k)::QAB1(I),XP(f)
- B(k);S_CUTR(l)::R1(G)
- Q(g);::S(E),XB(a)
- Refutation
- B(a);XP(B)
- Try
- Q(I);CHECK
- Vars
- B(k);XQ(I)::R1(G)
- Refutation
- R(l);XQ(I)
- Try
- Q(I);CHECK,XR(l)
- Vars
- K(d);S_FLIGHT,XR(G)::QAR1(I)
- Refutation
- B(k);CHECK,XQ(I)
- Try
- Q(I);XB(k)
- Threat
- QAB1(I),XP(f)
- Vars
- S(b);OGATE,XS(D)::R1(G),XS(b)
- R(l);N_GUARD::R1(G),XR(l)
- R(l);N_GUARD::QAR2(I),XR(l)
- Refutation
- S(b);XP(B)
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XR(G)::QAR2(I),XP(f)
- R(l);XS(D)::QAB1(I),XP(f)
- B(k);XS(D)::R1(G)
- S(e);SBLOCK,XR(G)::S(E)
- P(i);SBLOCK,XR(G)::S(E),XB(a)
- P(c);OGATEB::B(A)
- Q(g);::QAB1(I),XP(f)
- R(l);::R1(G)
- B(a);::QAB1(I),XP(f)
- S(e);::QAB1(I),XP(f)
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