MESON Chess Problem Database
Problem Display
PID: 68434 (Nr1nr2b/8/2pQ4/1pB5/2k5/R1PppB1K/2p5/nq1N4 w - - 0 1)
Ahues, Herbert Siegfried Oskar
1st Prize, Het Belgisch Schaakbord (L'Echiquier Belge), 1962
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Sxb2#
- 1...Rb6
- 2.Sxb6#
- 1...Rc8
- 2.Sb6#
- 1...Re5
- 2.Qd4#
- 1...Rf8
- 2.Sxe3#
- 1...Rg8
- 2.Sxe3#
- 1...Bxc3
- 2.Rxc3#
- 1...Bd4
- 2.Qxd4#
- 1...Be5
- 2.Sxe3#
- 1...Se6
- 2.Sxe3#
- 1...Sb7
- 2.Sb6#
- 1...d2
- 2.Be2#
- 1...Qb2
- Tries
- 1.Bxc6?
- threat
- 2.Bd5#
- 2.Qd5#
- 1...Re5
- 2.Qd4#
- 1...d2
- 2.Qd5#
- 1...b4
- 2.Qd5#
- 1...Sxc6!
- threat
- 1.Bxe3?
- threat
- 2.Qc5#
- 1...Rxe3
- 2.Sxe3#
- 1...Qb4
- 2.Qxb4#
- 1...Re5
- 2.Qd4#
- 1...Bd4
- 2.Qxd4#
- 1...Sb3
- 2.Qb4#
- 1...Sb7
- 2.Sb6#
- 1...d2
- 2.Be2#
- 1...c5
- 2.Bd5#
- 2.Qxc5#
- 2.Qd5#
- 1...Se6!
- threat
- 1.Bb4?
- threat
- 2.Qc5#
- 1...Qxb4
- 2.Qxb4#
- 1...Re5
- 2.Qd4#
- 1...Bd4
- 2.Qxd4#
- 1...Se6
- 2.Sxe3#
- 1...Sb7
- 2.Sb6#
- 1...d2
- 2.Be2#
- 1...c5
- 2.Bd5#
- 2.Qxc5#
- 2.Qd5#
- 1...Sb3!
- threat
- 1.Bd4?
- threat
- 2.Qc5#
- 1...Bxd4
- 2.Qxd4#
- 1...d2
- 2.Be2#
- 1...Qb4
- 2.Qxb4#
- 1...Sb3
- 2.Qb4#
- 1...Se6
- 2.Sxe3#
- 1...Sb7
- 2.Sb6#
- 1...c5
- 2.Bd5#
- 2.Qxc5#
- 2.Qd5#
- 1...Re5!
- threat
- 1.Bb6?
- threat
- 2.Qc5#
- 1...Rxb6
- 2.Sxb6#
- 1...Qb4
- 2.Qxb4#
- 1...Re5
- 2.Qd4#
- 1...Bd4
- 2.Qxd4#
- 1...Sb3
- 2.Qb4#
- 1...Se6
- 2.Sxe3#
- 1...d2
- 2.Be2#
- 1...c5
- 2.Bd5#
- 2.Qxc5#
- 2.Qd5#
- 1...Sb7!
- threat
- 1.Bxc6?
- Keys
- 1.Ba7!
- threat
- 2.Qc5#
- 1...Qb4
- 2.Qxb4#
- 1...Rb6
- 2.Sxb6#
- 1...Re5
- 2.Qd4#
- 1...Bd4
- 2.Qxd4#
- 1...Sb3
- 2.Qb4#
- 1...Se6
- 2.Sxe3#
- 1...Sb7
- 2.Sb6#
- 1...d2
- 2.Be2#
- 1...c5
- 2.Bd5#
- 2.Qxc5#
- 2.Qd5#
- threat
- 1.Ba7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(b);N_GUARD::S(A),XQ(b)
- R(i);N_GUARD::S(H),XR(i)
- R(i);N_GUARD::S(H)
- R(k);S_CUTB(l)::QAR1(G)
- R(k);N_GUARD::S(A),XP(e)
- B(l);OGATE,XP(C)::R1(B),XB(l)
- B(l);N_GUARD::QAR1(G),XB(l)
- B(l);S_CUTR(k)::S(A),XP(e)
- S(j);S_CUTR(k)::S(A),XP(e)
- S(j);S_CUTR(i)::S(H)
- P(d);OGATEB::B(D)
- Tries
- Try
- B(D);XP(h)
- Threat
- DUALS(2)
- Vars
- R(k);S_CUTB(l)::QAR1(G)
- P(d);::QAB1(G)
- P(g);::QAB1(G)
- Refutation
- S(j);XB(D)
- Try
- B(F);XP(e)
- Threat
- QAR1(G)
- Vars
- R(k);P_PINB(D),XB(F)::S(A),XR(k)
- Q(b);N_GUARD::QAR1(G),XQ(b)
- R(k);S_CUTB(l)::QAR1(G)
- B(l);N_GUARD::QAR1(G),XB(l)
- S(a);S_CUTQ(b)::QAR1(G)
- S(j);S_CUTR(i)::S(H)
- P(d);OGATEB::B(D)
- Refutation
- S(j);
- Try
- B(F);
- Threat
- QAR1(G)
- Vars
- Q(b);OGATE,XB(F)::QAR1(G),XQ(b)
- R(k);S_CUTB(l)::QAR1(G)
- B(l);N_GUARD::QAR1(G),XB(l)
- S(j);S_CUTR(k)::S(A),XP(e)
- S(j);S_CUTR(i)::S(H)
- P(d);OGATEB::B(D)
- Refutation
- S(a);
- Try
- B(F);
- Threat
- QAR1(G)
- Vars
- B(l);OGATE,XB(F)::QAR1(G),XB(l)
- P(d);OGATEB::B(D)
- Q(b);N_GUARD::QAR1(G),XQ(b)
- S(a);S_CUTQ(b)::QAR1(G)
- S(j);S_CUTR(k)::S(A),XP(e)
- S(j);S_CUTR(i)::S(H)
- Refutation
- R(k);
- Try
- B(F);
- Threat
- QAR1(G)
- Vars
- R(i);XB(F)::S(H),XR(i)
- Q(b);N_GUARD::QAR1(G),XQ(b)
- R(k);S_CUTB(l)::QAR1(G)
- B(l);N_GUARD::QAR1(G),XB(l)
- S(a);S_CUTQ(b)::QAR1(G)
- S(j);S_CUTR(k)::S(A),XP(e)
- P(d);OGATEB::B(D)
- Refutation
- S(j);
- Try
- Actual
- B(F);
- Threat
- QAR1(G)
- Vars
- Q(b);N_GUARD::QAR1(G),XQ(b)
- R(i);N_GUARD::S(H),XR(i)
- R(k);S_CUTB(l)::QAR1(G)
- B(l);N_GUARD::QAR1(G),XB(l)
- S(a);S_CUTQ(b)::QAR1(G)
- S(j);S_CUTR(k)::S(A),XP(e)
- S(j);S_CUTR(i)::S(H)
- P(d);OGATEB::B(D)
Developed and maintained by Brian Stephenson.
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