MESON Chess Problem Database
Problem Display
PID: 216869 (KnN1Q3/1N2b2r/p4p2/1p3p2/3k4/4RP2/B3b3/4R1B1 w - - 0 1)
Hoffmann, Fritz
Sachova skladba, 1988
#2
9 + 9
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Rxd1#
- 2.Ra3#
- 1...Bf1
- 2.Ra3#
- 1...Bxf3
- 2.Ra3#
- 2.Rxf3#
- 1...Ba3
- 2.Rxa3#
- 1...Bb4
- 2.Ra3#
- 1...Bc5
- 2.Ra3#
- 1...Bd6
- 2.Ra3#
- 1...Bd8
- 2.Ra3#
- 1...Bf8
- 2.Ra3#
- 1...Bd1
- Tries
- 1.Rd1+?
- 1...Bd3
- 2.Rdxd3#
- 1...Bxd1!
- 1...Bd3
- 1.R1xe2?
- threat
- 2.Rd2#
- 2.Ra3#
- 1...Rh1
- 2.Rd2#
- 1...Rg7
- 2.Rd2#
- 1...Ba3
- 2.Rd2#
- 2.Rxa3#
- 1...Bb4
- 2.Ra3#
- 1...Rh2!
- threat
- 1.Rb3+?
- 1...Kc4
- 2.Sb6#
- 1...Kd5
- 2.Rxb5#
- 1...Ke5!
- 1...Kc4
- 1.Qxb5?
- threat
- 2.Ra3#
- 2.Rb3#
- 2.Rd3#
- 2.Qb2#
- 2.Qd5#
- 1...Bxf3
- 2.Ra3#
- 2.Rb3#
- 2.Rd3#
- 2.Rxf3#
- 2.Qd3#
- 2.Qc4#
- 2.Qb2#
- 1...Bxb5
- 2.Ra3#
- 1...Bd3
- 2.Rxd3#
- 2.Qxd3#
- 2.Qb2#
- 1...Rh1
- 2.Rd3#
- 2.Qb2#
- 2.Qd5#
- 1...Rh2
- 2.Rd3#
- 2.Qb2#
- 2.Qd5#
- 1...Rg7
- 2.Rd3#
- 2.Qb2#
- 2.Qd5#
- 1...Bc4
- 2.Ra3#
- 2.Rb3#
- 2.Qxc4#
- 1...Ba3
- 2.Rxa3#
- 2.Rb3#
- 2.Rd3#
- 2.Qd5#
- 1...Bb4
- 2.Ra3#
- 2.Rb3#
- 2.Rd3#
- 2.Qd5#
- 1...Bc5
- 2.Qb2#
- 2.Qxc5#
- 1...axb5!
- threat
- 1.Qc6?
- threat
- 2.Qd5#
- 2.Qc3#
- 1...Bxf3
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Rxf3#
- 2.Qc3#
- 1...Bd3
- 2.R3e2#
- 2.Re4#
- 2.Re5#
- 2.Re6#
- 2.Rxe7#
- 1...Bc4
- 2.Ra3#
- 2.Rb3#
- 1...Bb4
- 2.Qd5#
- 2.Qxf6#
- 1...Bc5
- 2.Qd5#
- 2.Qxc5#
- 2.Qxf6#
- 1...b4
- 2.Qd5#
- 1...Sxc6!
- threat
- 1.Qd7+?
- 1...Bd6
- 2.Qxd6#
- 1...Sxd7!
- 1...Bd6
- 1.Qxe7?
- threat
- 2.Ra3#
- 2.Qc5#
- 2.Qd6#
- 2.Qxf6#
- 1...Bxf3
- 2.Ra3#
- 2.Rxf3#
- 2.Qb4#
- 2.Qc5#
- 2.Qxf6#
- 1...Bd3
- 2.Qc5#
- 2.Qxf6#
- 1...Bc4
- 2.Qc5#
- 1...Rh1
- 2.Qc5#
- 2.Qd6#
- 2.Qxf6#
- 1...Rh2
- 2.Qc5#
- 2.Qd6#
- 2.Qxf6#
- 1...Rh6
- 2.Ra3#
- 2.Qc5#
- 2.Qd6#
- 1...Rf7
- 2.Ra3#
- 2.Qc5#
- 2.Qd6#
- 1...Rg7
- 2.Qc5#
- 2.Qd6#
- 2.Qxf6#
- 1...Sc6
- 2.Ra3#
- 2.Qc5#
- 2.Qd6#
- 1...Sd7
- 2.Ra3#
- 2.Qd6#
- 1...Rxe7!
- threat
- 1.Rd1+?
- Keys
- 1.Sc5!
- threat
- 2.Se6#
- 1...Bxf3+
- 2.Rxf3#
- 1...Kxc5
- 2.Re4#
- 1...Bxc5
- 2.Ra3#
- 1...Bd3
- 2.Rxd3#
- 1...Bc4
- 2.Rd3#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- B(a);::B(B)+R(D)
- B(g);::B(B)+R(D),XB(g)
- B(g);::B(B)+R(D)
- Tries
- Try
- R(A);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::R1(A),XB(a)
- Refutation
- B(a);XR(A)
- Try
- R(A);XB(a)
- Threat
- DUALS(2)
- Vars
- R(h);::R(A)
- B(g);::B(B)+R(D)
- Refutation
- R(h);
- Try
- R(D);CHECK
- Vars
- K(b);P-FLIGHT::S(H)
- K(b);P-FLIGHT::B(C)+R(D),DCHECK,XP(c)
- Refutation
- K(b);P_SPINB(a),S_FLIGHT
- Try
- Q(I);XP(c)
- Threat
- DUALS(5)
- Vars
- B(a);XQ(I)::B(B)+R(D)
- Refutation
- P(e);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- P(c);::QAR1(I)
- Refutation
- S(i);XQ(I)
- Try
- Q(I);CHECK
- Vars
- B(g);N_GUARD,P_SPINB(g)::QAR2(I),XB(g)
- Refutation
- S(i);XQ(I)
- Try
- Q(I);XB(g)
- Threat
- DUALS(4)
- Vars
- B(a);::QAB1(I)
- Refutation
- R(h);XQ(I)
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- B(a);CHECK,OGATE,XP(E)::B(B)+R(D),XB(a)
- K(b);S_FLIGHT,XS(F)::B(B)+R(D)
- B(g);SBLOCK,XS(F)::B(B)+R(D)
- B(a);::B(B)+R(D),DCHECK,XB(a)
- B(a);::B(B)+R(D),DCHECK
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