MESON Chess Problem Database
Problem Display
PID: 77221 (4R3/8/3B1pr1/3p4/Kn1k1NrR/2p4Q/2n2p2/b2N1B2 w - - 0 1)
Degener, Udo
Neue Osnabrucker Zeitung, 1994
#2
8 + 10
| 6114 | Problemschach-Jahrbuch (1994) | 1995 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Se2#
- 2.Se6#
- 1...Rg2
- 2.Se2#
- 2.Se6#
- 1...Rg3
- 2.Se6#
- 1...Rxf4
- 2.Rxf4#
- 1...R4g5
- 2.Se2#
- 2.Se6#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sa2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa6
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Rg1
- Tries
- 1.Kb5?
- threat
- 2.Se2#
- 2.Bc5#
- 1...Rxf4
- 2.Bc5#
- 2.Rxf4#
- 1...Rg3
- 2.Se6#
- 2.Bc5#
- 1...Se3
- 2.Bc5#
- 2.Qxe3#
- 1...Sd3
- 2.Se2#
- 2.Qxd3#
- 1...Sa6
- 2.Se2#
- 2.Qd3#
- 1...Sa3+!
- threat
- 1.Sxf2?
- threat
- 2.Se6#
- 1...Rxf4
- 2.Rxf4#
- 1...Sd3
- 2.Qxd3#
- 1...Rg3
- 2.Se2#
- 1...f5!
- threat
- 1.Sxc3?
- threat
- 2.Sb5#
- 2.Se6#
- 1...Rxf4
- 2.Sb5#
- 2.Rxf4#
- 1...Rg3
- 2.Sb5#
- 1...Se3
- 2.Sb5#
- 2.Qxe3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa3
- 2.Se6#
- 2.Qe3#
- 1...f5
- 2.Sb5#
- 1...Bxc3!
- threat
- 1.Se3?
- threat
- 2.Sf5#
- 1...Sxe3
- 2.Qxe3#
- 1...R4g5
- 2.Se6#
- 1...Sd3
- 2.Se2#
- 1...f5
- 2.Sxf5#
- 1...R6g5!
- threat
- 1.Bd3?
- threat
- 2.Se2#
- 2.Se6#
- 1...Rxf4
- 2.Rxf4#
- 1...Sxd3
- 2.Qxd3#
- 1...f1Q
- 2.Se6#
- 1...f1B
- 2.Se6#
- 1...Se3
- 2.Qxe3#
- 1...f5
- 2.Se2#
- 1...Rg3!
- threat
- 1.Bxb4?
- threat
- 2.Qd3#
- 1...Sxb4
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Rg3!
- threat
- 1.Rxg4?
- threat
- 2.Se2#
- 2.Se6#
- 2.Sxg6#
- 1...Sd3
- 2.Se2#
- 2.Se6#
- 2.Qxd3#
- 1...Rg5
- 2.Se2#
- 2.Se6#
- 1...Rh6
- 2.Se2#
- 2.Sg2#
- 2.Sd3#
- 2.Sh5#
- 2.Se6#
- 2.Sg6#
- 1...Rg7
- 2.Se2#
- 2.Se6#
- 2.Sg6#
- 1...Rg8
- 2.Se2#
- 2.Se6#
- 2.Sg6#
- 1...Se3
- 2.Se6#
- 2.Qxe3#
- 1...f5
- 2.Se2#
- 2.Se6#
- 1...Rxg4!
- threat
- 1.Qg2?
- threat
- 2.Se6#
- 1...Rxf4
- 2.Rxf4#
- 1...Sd3
- 2.Qxd5#
- 1...f5!
- threat
- 1.Qxg4?
- threat
- 2.Se6#
- 2.Sxg6#
- 1...Sd3
- 2.Se2#
- 2.Se6#
- 1...f5
- 2.Se6#
- 1...Rg5
- 2.Se6#
- 1...Rh6
- 2.Sg2#
- 2.Sd3#
- 2.Sh3#
- 2.Sh5#
- 2.Se6#
- 2.Sg6#
- 1...Rg7
- 2.Se6#
- 2.Sg6#
- 1...Rg8
- 2.Se6#
- 2.Sg6#
- 1...Se3
- 2.Se6#
- 1...Rxg4!
- threat
- 1.Qh1?
- threat
- 2.Se6#
- 1...Rxf4
- 2.Rxf4#
- 1...Sd3
- 2.Qxd5#
- 1...f5!
- threat
- 1.Qf3?
- threat
- 2.Se6#
- 1...Rxf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Sd3
- 2.Qxd5#
- 2.Qxd3#
- 1...f5!
- threat
- 1.Kb5?
- Keys
- 1.Kb3!
- threat
- 2.Se2#
- 1...Rxf4
- 2.Rxf4#
- 1...Rg3
- 2.Se6#
- 1...Se3
- 2.Qxe3#
- threat
- 1.Kb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- R(g);::R(F)+S(E),DCHECK
- R(g);OGATE,P_SPINR(g),XS(E)::R(F),XR(g)
- S(b);N_GUARD::QAB1(C)
- S(b);N_GUARD::QAB1(C),XS(b)
- S(e);N_GUARD::QAR1(C)
- S(e);N_GUARD::QAR1(C),XS(e)
- Tries
- Try
- K(D);S_FLIGHT
- Threat
- DUALS(2)
- Refutation
- S(b);CHECK
- Try
- S(A);XP(c)
- Threat
- S(E)
- Vars
- R(g);OGATE,P_SPINR(g),XS(E)::R(F),XR(g)
- S(e);N_GUARD::QAR1(C),XS(e)
- R(g);::R(F)+S(E),DCHECK
- Refutation
- P(i);
- Try
- S(A);XP(d)
- Threat
- DUALS(2)
- Vars
- R(g);::S(A)
- S(e);N_GUARD::QAR1(C),XS(e)
- P(i);::S(A)
- Refutation
- B(a);XS(A)
- Try
- S(A);
- Threat
- S(A)
- Vars
- S(b);OGATE,XS(A)::QAB1(C),XS(b)
- R(g);::R(F)+S(E),DCHECK
- S(e);SBLOCK::S(E)
- P(i);::S(A),XP(i)
- Refutation
- R(j);
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- R(g);OGATE,P_SPINR(g),XS(E)::R(F),XR(g)
- S(e);OGATE,XB(B)::QAR1(C),XS(e)
- P(c);::S(E)
- S(b);N_GUARD::QAB1(C),XS(b)
- P(i);::S(E)
- Refutation
- R(g);
- Try
- B(G);XS(e)
- Threat
- QAR1(C)
- Vars
- S(b);N_GUARD,XB(G)::QAB1(C)
- S(b);N_GUARD::QAB1(C)
- S(b);N_GUARD::QAB1(C),XS(b)
- Refutation
- R(g);
- Try
- R(F);XR(g)
- Threat
- DUALS(3)
- Refutation
- R(j);XR(F)
- Try
- Q(C);
- Threat
- S(E)
- Vars
- R(g);OGATE,P_SPINR(g),XS(E)::R(F),XR(g)
- S(e);N_GUARD::QAR1(C),XP(h)
- Refutation
- P(i);
- Try
- Q(C);XR(g)
- Threat
- DUALS(2)
- Vars
- P(i);::QAR(C)+S(E),DCHECK
- R(j);::QAR(C)+S(E),DCHECK
- S(b);::QAR(C)+S(E),DCHECK
- Refutation
- R(j);XQ(C)
- Try
- Q(C);
- Threat
- S(E)
- Vars
- R(g);OGATE,P_SPINR(g),XS(E)::R(F),XR(g)
- S(e);N_GUARD::QAR1(C),XP(h)
- Refutation
- P(i);
- Try
- Q(C);
- Threat
- S(E)
- Refutation
- P(i);
- Try
- Actual
- K(D);S_FLIGHT
- Threat
- S(E)
- Vars
- R(g);OGATE,P_SPINR(g),XS(E)::R(F),XR(g)
- R(g);::R(F)+S(E),DCHECK
- S(b);N_GUARD::QAB1(C),XS(b)
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