MESON Chess Problem Database
Problem Display
PID: 15866 (4qN2/r1p1P3/P1p1R3/P1k5/KN4n1/2BRb1rb/B4p2/5n2 w - - 0 1)
Hoffmann, Fritz
Schach, 1988
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Qh5
- 2.Sd7#
- 2.Rxc6#
- 1...Qg6
- 2.Sd7#
- 1...Qd7
- 2.Sxd7#
- 1...Qf7
- 2.Sd7#
- 2.Rxc6#
- 1...Qxe7
- 2.Rxc6#
- 1...Qa8
- 2.Sd7#
- 1...Qb8
- 2.Sd7#
- 2.Rxc6#
- 1...Qc8
- 2.Rxc6#
- 1...Qd8
- 2.Rxc6#
- 1...Qxf8
- 2.Rxc6#
- 2.exf8Q#
- 2.exf8B#
- 1...Rxa6
- 2.Sxa6#
- 1...Bc1
- 2.Bd4#
- 1...Bd2
- 2.Bd4#
- 1...Bd4
- 2.Bxd4#
- 1...Bf4
- 2.Bd4#
- 1...Bg5
- 2.Bd4#
- 1...Bh6
- 2.Bd4#
- 1...Sh2
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sh6
- 2.Re5#
- 1...Qh5
- Tries
- 1.Sc2?
- threat
- 2.Bb4#
- 1...Qb8
- 2.Sd7#
- 1...Bd2
- 2.Bd4#
- 1...Rb7!
- threat
- 1.Sxc6?
- threat
- 2.Bb4#
- 2.Rd5#
- 1...Rb7
- 2.Rd5#
- 1...Qh5
- 2.Sd7#
- 2.Bb4#
- 1...Qd7
- 2.Sxd7#
- 2.Bb4#
- 1...Qb8
- 2.Sd7#
- 2.Rd5#
- 1...Qd8
- 2.Bb4#
- 1...Bd2
- 2.Bd4#
- 2.Rd5#
- 1...Bd4
- 2.Bb4#
- 2.Bxd4#
- 1...Bg2
- 2.Bb4#
- 1...Sf6
- 2.Bb4#
- 1...Qxc6+!
- threat
- 1.Be5?
- threat
- 2.Rc3#
- 1...Sxe5
- 2.Rxe5#
- 1...Bc1
- 2.Bd4#
- 1...Bd2
- 2.Bd4#
- 1...Bd4
- 2.Bxd4#
- 1...Bf4
- 2.Bd4#
- 1...Bg5
- 2.Bd4#
- 1...Bh6
- 2.Bd4#
- 1...Sd2!
- threat
- 1.Rd1?
- threat
- 2.Sd3#
- 1...Qg6
- 2.Sd7#
- 1...Qd7
- 2.Sxd7#
- 1...Qd8
- 2.Rxc6#
- 1...Bc1
- 2.Bd4#
- 1...Bd4
- 2.Bxd4#
- 1...Bf4
- 2.Bd4#
- 1...Bg5
- 2.Bd4#
- 1...Bh6
- 2.Bd4#
- 1...Se5
- 2.Rxe5#
- 1...Bd2!
- threat
- 1.Rd2?
- threat
- 2.Sd3#
- 1...Qg6
- 2.Sd7#
- 1...Qd7
- 2.Sxd7#
- 1...Qd8
- 2.Rxc6#
- 1...Bd4
- 2.Bxd4#
- 1...Bf4
- 2.Bd4#
- 1...Bg5
- 2.Bd4#
- 1...Bh6
- 2.Bd4#
- 1...Se5
- 2.Rxe5#
- 1...Bxd2!
- threat
- 1.Rdxe3?
- threat
- 2.Sd3#
- 1...Qg6
- 2.Sd7#
- 1...Qd7
- 2.Sxd7#
- 1...Qd8
- 2.Rxc6#
- 1...Se5
- 2.R3xe5#
- 1...Rxe3!
- threat
- 1.Rd4?
- threat
- 2.Sd3#
- 2.Rc4#
- 1...Qg6
- 2.Sd7#
- 2.Rc4#
- 1...Bc1
- 2.Rc4#
- 1...Bd2
- 2.Rc4#
- 1...Bf4
- 2.Rc4#
- 1...Bg5
- 2.Rc4#
- 1...Bh6
- 2.Rc4#
- 1...Sd2
- 2.Sd3#
- 1...Se5
- 2.Rxe5#
- 1...Bxd4!
- threat
- 1.Rdd6?
- threat
- 2.Sd3#
- 1...Qg6
- 2.Sd7#
- 2.Rxc6#
- 1...Bc1
- 2.Bd4#
- 1...Bd2
- 2.Bd4#
- 1...Bd4
- 2.Bxd4#
- 1...Bf4
- 2.Bd4#
- 1...Bg5
- 2.Bd4#
- 1...Bh6
- 2.Bd4#
- 1...Se5!
- threat
- 1.Rd7?
- threat
- 2.Sd3#
- 2.Rxc6#
- 1...Qxd7
- 2.Sxd7#
- 1...Rxa6
- 2.Sd3#
- 2.Sxa6#
- 1...Qa8
- 2.Sd3#
- 1...Bc1
- 2.Bd4#
- 2.Rxc6#
- 1...Bd2
- 2.Bd4#
- 2.Rxc6#
- 1...Bd4
- 2.Bxd4#
- 2.Rxc6#
- 1...Bf4
- 2.Bd4#
- 2.Rxc6#
- 1...Bg5
- 2.Bd4#
- 2.Rxc6#
- 1...Bh6
- 2.Bd4#
- 2.Rxc6#
- 1...Bg2
- 2.Sd3#
- 1...Se5
- 2.Rxe5#
- 1...Qg6!
- threat
- 1.Re4?
- threat
- 2.Se6#
- 2.Rc4#
- 1...Qxe7
- 2.Rc4#
- 1...Qxf8
- 2.Rc4#
- 2.exf8Q#
- 2.exf8B#
- 1...Qg6
- 2.Sd7#
- 2.Rc4#
- 1...Qd7
- 2.Sxd7#
- 2.Rc4#
- 1...Qf7
- 2.Sd7#
- 1...Qc8
- 2.Rc4#
- 1...Sd2
- 2.Se6#
- 1...Sgh2
- 2.Rc4#
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sf6
- 2.Rc4#
- 1...Sh6
- 2.Rc4#
- 2.Re5#
- 1...Bd4!
- threat
- 1.Sc2?
- Keys
- 1.Rd8!
- threat
- 2.Sd3#
- 1...Qxd8
- 2.Rxc6#
- 1...Qg6
- 2.Sd7#
- 1...Qd7
- 2.Sxd7#
- 1...Bc1
- 2.Bd4#
- 1...Bd2
- 2.Bd4#
- 1...Bd4
- 2.Bxd4#
- 1...Bf4
- 2.Bd4#
- 1...Bg5
- 2.Bd4#
- 1...Bh6
- 2.Bd4#
- 1...Se5
- 2.Rxe5#
- threat
- 1.Rd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(k);N_GUARD::S(J)
- Q(k);N_GUARD::S(J),XQ(k)
- Q(k);N_GUARD,XP(I)::R1(H),XP(h)
- Q(k);N_GUARD::R1(H),XP(h)
- R(i);P_PINP(F),XP(G)::S(E),XR(i)
- B(c);N_GUARD::B(B)
- B(c);N_GUARD::B(B),XB(c)
- S(f);N_GUARD::R(H)
- S(f);N_GUARD::R(H),XS(f)
- Tries
- Try
- S(E);
- Threat
- B(B)
- Vars
- Q(k);N_GUARD::S(J)
- B(c);N_GUARD::B(B)
- Refutation
- R(i);
- Try
- S(E);P_SPINS(E),XP(h)
- Threat
- DUALS(2)
- Vars
- R(i);::R1(C)
- Q(k);N_PINS(E)::B(B)
- B(e);::B(B)
- S(f);::B(B)
- Refutation
- Q(k);CHECK,XS(E)
- Try
- B(B);
- Threat
- R(C)
- Vars
- S(f);OGATE,XB(B)::R(H),XS(f)
- B(c);N_GUARD::B(B)
- B(c);N_GUARD::B(B),XB(c)
- Refutation
- S(a);
- Try
- R(C);
- Threat
- S(E)
- Vars
- Q(k);N_GUARD::S(J)
- Q(k);N_GUARD::S(J),XQ(k)
- Q(k);N_GUARD::R1(H),XP(h)
- B(c);N_GUARD::B(B)
- B(c);N_GUARD::B(B),XB(c)
- S(f);N_GUARD::R(H),XS(f)
- Refutation
- B(c);
- Try
- R(C);
- Threat
- S(E)
- Vars
- Q(k);N_GUARD::S(J)
- Q(k);N_GUARD::S(J),XQ(k)
- Q(k);N_GUARD::R1(H),XP(h)
- B(c);N_GUARD::B(B),XB(c)
- B(c);N_GUARD::B(B)
- S(f);N_GUARD::R(H),XS(f)
- Refutation
- B(c);XR(C)
- Try
- R(C);XB(c)
- Threat
- S(E)
- Vars
- Q(k);N_GUARD::S(J)
- Q(k);N_GUARD::S(J),XQ(k)
- Q(k);N_GUARD::R1(H),XP(h)
- S(f);N_GUARD::R(C),XS(f)
- Refutation
- R(d);XR(C)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- B(c);::R1(C)
- S(a);::S(E)
- S(f);N_GUARD::R(H),XS(f)
- Refutation
- B(c);XR(C)
- Try
- R(C);
- Threat
- S(E)
- Vars
- B(c);N_GUARD::B(B)
- B(c);N_GUARD::B(B),XB(c)
- Refutation
- S(f);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- Q(k);XR(C)::S(J),XQ(k)
- Q(k);::S(E)
- B(e);::S(E)
- S(f);N_GUARD::R(H),XS(f)
- Refutation
- Q(k);
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- Q(k);XP(I)::R1(H)
- Q(k);N_GUARD::S(J)
- Q(k);::R1(H)
- S(a);::S(J)
- S(f);N_GUARD::R(H),XS(f)
- S(f);::R1(H)
- Refutation
- B(c);
- Try
- Actual
- R(C);
- Threat
- S(E)
- Vars
- Q(k);N_GUARD,XR(C)::R1(H),XP(h)
- Q(k);N_GUARD::S(J)
- Q(k);N_GUARD::S(J),XQ(k)
- B(c);N_GUARD::B(B)
- B(c);N_GUARD::B(B),XB(c)
- S(f);N_GUARD::R(H),XS(f)
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