MESON Chess Problem Database
Problem Display
PID: 12349 (7K/3R3p/B4Q2/2k2N2/RN5r/2n4r/4PP1b/7b w - - 0 1)
Zajic, Helmut
3rd Prize, Die Schwalbe, 1978
#2
9 + 7
| 3750 | FIDE Album (1977-1979) | 1984 |
| 14730 | Problempalette II (Chlubna/Wenda) | 1991 |
| 5503 | ISC | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Sxd3#
- 1...Rf3
- 2.Qc6#
- 1...Rg3
- 2.Qd6#
- 1...Rd4
- 2.Qxd4#
- 1...Re4
- 2.Qc6#
- 1...Rf4
- 2.Qd6#
- 1...Rh5
- 2.Qd4#
- 1...Rh6
- 2.Qd4#
- 1...Bf3
- 2.Sd3#
- 1...Be4
- 2.Qd4#
- 1...Bc6
- 2.Qxc6#
- 1...Bg1
- 2.Qd6#
- 1...Bg3
- 2.Sd3#
- 1...Bf4
- 2.Qd4#
- 1...Bd6
- 2.Qxd6#
- 1...Se4
- 2.Rd5#
- 2.Qd4#
- 2.Qc6#
- 1...Sd5
- 2.Qc6#
- 1...Rd3
- Tries
- 1.Rd5+?
- 1...Sxd5
- 2.Qc6#
- 1...Bxd5!
- 1...Sxd5
- 1.Rc7+?
- 1...Bc6
- 2.Rxc6#
- 2.Qxc6#
- 1...Bxc7!
- 1...Bc6
- 1.Qe7+?
- 1...Bd6
- 2.Qxd6#
- 1...Kb6!
- 1...Bd6
- 1.Qf8+?
- 1...Bd6
- 2.Qxd6#
- 1...Kb6!
- 1...Bd6
- 1.e4?
- threat
- 2.Qd4#
- 2.Qc6#
- 1...Rxe4
- 2.Qc6#
- 1...Bxe4
- 2.Qd4#
- 1...Sxa4
- 2.Qd4#
- 1...Bd6
- 2.Qd4#
- 2.Qxd6#
- 1...Sb5
- 2.Qc6#
- 1...Rd3
- 2.Sxd3#
- 2.Qc6#
- 1...Rh6
- 2.Qd4#
- 1...Se2
- 2.Rd5#
- 2.Qc6#
- 1...Be5!
- threat
- 1.f3?
- threat
- 2.Sd3#
- 2.Qc6#
- 1...Rxf3
- 2.Qc6#
- 1...Bxf3
- 2.Sd3#
- 1...Sxa4
- 2.Sd3#
- 1...Bd6
- 2.Qxd6#
- 1...Rd4
- 2.Qxd4#
- 2.Qc6#
- 1...Rh6
- 2.Sd3#
- 2.Qd4#
- 1...Be5
- 2.Sd3#
- 1...Rxb4!
- threat
- 1.f4?
- threat
- 2.Qd4#
- 2.Qd6#
- 1...Rxf4
- 2.Qd6#
- 1...Bxf4
- 2.Qd4#
- 1...Sxe2
- 2.Qd6#
- 1...Bc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rd3
- 2.Sxd3#
- 1...Rh6
- 2.Qd4#
- 1...Bg1
- 2.Qd6#
- 1...Se4
- 2.Rd5#
- 2.Rc7#
- 2.Qd4#
- 2.Qc6#
- 1...Sb5!
- threat
- 1.Rd5+?
- Keys
- 1.Sg3!
- threat
- 2.Sd3#
- 2.Qd6#
- 1...Rxg3
- 2.Qd6#
- 1...Rxb4
- 2.Qd6#
- 1...Bxg3
- 2.Sd3#
- 1...Bc6
- 2.Qxc6#
- 1...Sb5
- 2.Sd3#
- 1...Rd4
- 2.Qxd4#
- 1...Rh6
- 2.Sd3#
- 2.Qd4#
- 1...Be4
- 2.Qd4#
- 2.Qd6#
- 1...Bd5
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 2.Rd5#
- 2.Rc7#
- 2.Qd4#
- 2.Qc6#
- 1...Sd5
- 2.Sd3#
- threat
- 1.Sg3!
There are these afters: 253002
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- R(d);N_GUARD::S(D),XR(d)
- R(d);S_CUTB(a)::QAR1(G)
- R(d);S_CUTB(b)::QAB1(G)
- R(e);N_GUARD::QAB1(G),XR(e)
- R(e);S_CUTB(a)::QAR1(G)
- R(e);S_CUTB(b)::QAB1(G)
- R(e);N_GUARD::QAB1(G)
- B(a);S_CUTR(d)::S(D)
- B(a);S_CUTR(e)::QAB1(G)
- B(a);N_GUARD::QAR1(G),XB(a)
- B(b);N_GUARD::QAB1(G)
- B(b);S_CUTR(d)::S(D)
- B(b);S_CUTR(e)::QAB1(G)
- B(b);N_GUARD::QAB1(G),XB(b)
- S(c);S_CUTB(a)::QAR1(G)
- Tries
- Try
- R(H);CHECK
- Vars
- S(c);XR(H)::QAR1(G)
- Refutation
- B(a);XR(H)
- Try
- R(H);CHECK
- Refutation
- B(b);XR(H)
- Try
- Q(G);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB1(G),XB(b)
- Refutation
- K(f);S_FLIGHT
- Try
- Q(G);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB1(G),XB(b)
- Refutation
- K(f);S_FLIGHT
- Try
- P(A);
- Threat
- DUALS(2)
- Vars
- R(e);XP(A)::QAR1(G)
- B(a);XP(A)::QAB1(G)
- S(c);XR(C)::QAB1(G)
- S(c);::QAR1(G)
- R(e);::QAB1(G)
- Refutation
- B(b);P_PINQ(G)
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- R(d);XP(B)::QAR1(G)
- B(a);XP(B)::S(D)
- S(c);XR(C)::S(D)
- B(b);N_GUARD::QAB1(G),XB(b)
- B(b);P_PINQ(G)::S(D)
- Refutation
- R(e);XS(D)
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- R(e);XP(B)::QAB1(G)
- B(b);XP(B)::QAB1(G)
- S(c);XP(A)::QAB1(G)
- R(d);N_GUARD::S(D),XR(d)
- R(e);::QAB1(G)
- B(b);::QAB1(G)
- Refutation
- S(c);
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- R(d);XS(E)::QAB1(G)
- R(e);XS(D)::QAB1(G)
- B(b);XS(E)::S(D)
- B(a);N_GUARD::QAR1(G),XB(a)
- S(c);::S(D)
- R(e);N_GUARD::QAB1(G),XR(e)
- B(a);::S(D)
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