MESON Chess Problem Database
Problem Display
PID: 10657 (4N1Q1/8/1P2Pp2/KpB5/b1kpB3/3N3R/2nP2rb/1R6 w - - 0 1)
Ahues, Herbert Siegfried Oskar
3rd Prize, Stella Polaris, 1966
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Re2
- 2.e7#
- 1...Rf2
- 2.e7#
- 1...Rg3
- 2.Sd6#
- 1...Bg1
- 2.Sd6#
- 1...Bg3
- 2.e7#
- 1...Bd6
- 2.Sxd6#
- 1...Sa1
- 2.Rb4#
- 1...Se1
- 2.Rb4#
- 1...Sa3
- 2.Rb4#
- 1...Se3
- 2.Rb4#
- 1...Sb4
- 2.Rxb4#
- 1...Re2
- Tries
- 1.Ba3?
- threat
- 2.Sb2#
- 1...Sxa3
- 2.Rb4#
- 1...Rg3
- 2.Sd6#
- 1...Bg3
- 2.e7#
- 1...Se3
- 2.Rb4#
- 1...Sb4
- 2.Rxb4#
- 1...b4!
- threat
- 1.Bb4?
- threat
- 2.Sb2#
- 1...Sxb4
- 2.Rxb4#
- 1...Rg3
- 2.Sd6#
- 1...Bg3
- 2.e7#
- 1...Se3!
- threat
- 1.Bd6?
- threat
- 2.Sb2#
- 1...Bxd6
- 2.Sxd6#
- 1...Bg3
- 2.e7#
- 1...Se3
- 2.Rb4#
- 1...Rg3!
- threat
- 1.Be7?
- threat
- 2.Sb2#
- 1...Rg3
- 2.Sd6#
- 1...Bd6
- 2.Sxd6#
- 1...Se3
- 2.Rb4#
- 1...Bg3!
- threat
- 1.Rg3?
- threat
- 2.Sd6#
- 2.e7#
- 1...Rxg3
- 2.Sd6#
- 1...Bxg3
- 2.e7#
- 1...Se3
- 2.Sd6#
- 2.Rb4#
- 1...Sb4
- 2.Sd6#
- 2.Rxb4#
- 1...Rxd2!
- threat
- 1.Qxg2?
- threat
- 2.Bd5#
- 1...Se3
- 2.Rb4#
- 1...Sb4
- 2.Rxb4#
- 1...Bg3!
- threat
- 1.Qf8?
- threat
- 2.Sb2#
- 1...Rg3
- 2.Sd6#
- 1...Bd6
- 2.Sxd6#
- 1...Se3
- 2.Rb4#
- 1...Bg3!
- threat
- 1.Ba3?
- Keys
- 1.Bf8!
- threat
- 2.Sb2#
- 1...Rg3
- 2.Sd6#
- 1...Bg3
- 2.e7#
- 1...Bd6
- 2.Sxd6#
- 1...Se3
- 2.Rb4#
- threat
- 1.Bf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- R(b);N_GUARD::QAB(K)+P(I)
- R(b);S_CUTB(c)::S(J)
- B(c);N_GUARD::S(J)
- B(c);S_CUTR(b)::QAB(K)+P(I)
- B(c);N_GUARD::S(J),XB(c)
- S(a);N_GUARD::R1(A)
- S(a);N_GUARD::R1(A),XS(a)
- Tries
- Try
- B(G);
- Threat
- S(C)
- Vars
- S(a);N_GUARD,XB(G)::R1(A)
- R(b);S_CUTB(c)::S(J)
- B(c);S_CUTR(b)::QAB(K)+P(I)
- S(a);N_GUARD::R1(A)
- S(a);N_GUARD::R1(A),XS(a)
- Refutation
- P(g);
- Try
- B(G);
- Threat
- S(C)
- Vars
- S(a);OGATE,XB(G)::R1(A),XS(a)
- R(b);S_CUTB(c)::S(J)
- B(c);S_CUTR(b)::QAB(K)+P(I)
- Refutation
- S(a);
- Try
- B(G);
- Threat
- S(C)
- Vars
- B(c);XB(G)::S(J),XB(c)
- B(c);S_CUTR(b)::QAB(K)+P(I)
- S(a);N_GUARD::R1(A)
- Refutation
- R(b);
- Try
- B(G);
- Threat
- S(C)
- Vars
- R(b);S_CUTB(c)::S(J)
- B(c);N_GUARD::S(J),XB(c)
- S(a);N_GUARD::R1(A)
- Refutation
- B(c);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- R(b);XR(D)::S(J)
- B(c);XR(D)::QAB(K)+P(I)
- Refutation
- R(b);XP(B)
- Try
- Q(K);XR(b)
- Threat
- B(E)
- Vars
- S(a);N_GUARD::R1(A)
- S(a);N_GUARD::R1(A),XS(a)
- Refutation
- B(c);
- Try
- Q(K);
- Threat
- S(C)
- Vars
- R(b);S_CUTB(c)::S(J)
- B(c);N_GUARD::S(J),XB(c)
- S(a);N_GUARD::R1(A)
- Refutation
- B(c);
- Try
- Actual
- B(G);
- Threat
- S(C)
- Vars
- R(b);S_CUTB(c)::S(J)
- B(c);S_CUTR(b)::QAB(K)+P(I)
- B(c);N_GUARD::S(J),XB(c)
- S(a);N_GUARD::R1(A)
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