MESON Chess Problem Database
Problem Display
PID: 176376 (4B3/4r1Pp/2q2p1k/r4R2/5N2/5p1K/b2N4/2B3R1 w - - 0 1)
Haring, Jacobus
Comm., Schach-Echo, 1981
#2
8 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qa4
- 2.Rxf6#
- 1...Qb5
- 2.Rxf6#
- 1...Qd5
- 2.Rxf6#
- 1...Qb7
- 2.Rxf6#
- 1...Qa8
- 2.Rxf6#
- 1...Qxc1
- 2.Rxf6#
- 1...Qc4
- 2.Rxf6#
- 1...Qc5
- 2.Rxf6#
- 1...Qc7
- 2.Rxf6#
- 1...Ra3
- 2.Rh5#
- 1...Ra4
- 2.Rh5#
- 1...Rd5
- 2.g8S#
- 1...Ra6
- 2.Rh5#
- 1...Raa7
- 2.Rh5#
- 1...Ra8
- 2.Rh5#
- 1...Re6
- 2.g8S#
- 1...Rf7
- 2.g8S#
- 1...Bb1
- 2.g8S#
- 1...Bd5
- 2.Rh5#
- 1...Qa4
- Tries
- 1.Sd5?
- threat
- 2.Rh5#
- 2.g8S#
- 1...Qxd5
- 2.Rxf6#
- 1...Qxe8
- 2.Se4#
- 1...Rxd5
- 2.g8S#
- 1...Rxg7
- 2.Rh5#
- 1...Bxd5
- 2.Rh5#
- 1...Qd7
- 2.Se4#
- 2.g8S#
- 1...Qe6
- 2.Se4#
- 1...Qc8
- 2.g8S#
- 1...Re5
- 2.g8S#
- 1...Rf7
- 2.Sc4#
- 2.g8S#
- 1...Rxe8!
- threat
- 1.Se6?
- threat
- 2.Sc4#
- 2.Rxf6#
- 2.g8S#
- 1...Qxe8
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sc4#
- 2.Se4#
- 1...Qxc1
- 2.Rxf6#
- 2.g8S#
- 1...Qxe6
- 2.Se4#
- 1...Rxf5
- 2.g8S#
- 1...Rxe6
- 2.g8S#
- 1...Rxe8
- 2.Sc4#
- 1...Bxe6
- 2.Sc4#
- 1...Qe4
- 2.Sxe4#
- 2.g8S#
- 1...Qd5
- 2.Rxf6#
- 2.g8S#
- 1...Qd7
- 2.Rxf6#
- 2.g8S#
- 1...Qc2
- 2.g8S#
- 1...Qc3
- 2.g8S#
- 1...Qc4
- 2.Sxc4#
- 2.Rxf6#
- 2.g8S#
- 1...Qc5
- 2.Rxf6#
- 2.g8S#
- 1...Qb6
- 2.Rxf6#
- 2.g8S#
- 1...Qd6
- 2.Rxf6#
- 2.g8S#
- 1...Qc7
- 2.Rxf6#
- 2.g8S#
- 1...Ra3
- 2.Rh5#
- 2.Rxf6#
- 2.g8S#
- 1...Rd5
- 2.Rxf6#
- 2.g8S#
- 1...Re5
- 2.Rxf6#
- 2.g8S#
- 1...Rd7
- 2.Rxf6#
- 2.g8S#
- 1...Rf7
- 2.Sc4#
- 2.g8S#
- 1...Bb1
- 2.Sc4#
- 2.g8S#
- 1...Bc4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxc4#
- 2.Se4#
- 2.Rxf6#
- 2.g8S#
- 1...Rxg7!
- threat
- 1.Sd5?
- Keys
- 1.Sc4!
- threat
- 2.Se6#
- 2.g8S#
- 1...Qxe8
- 2.Se6#
- 1...Qxc4
- 2.Rxf6#
- 1...Rxf5
- 2.g8S#
- 1...Rxg7
- 2.Sg6#
- 1...Rxe8
- 2.Se6#
- 1...Bxc4
- 2.Se6#
- 1...Qe4
- 2.g8S#
- 1...Qd5
- 2.Rxf6#
- 1...Qd7
- 2.g8S#
- 1...Qc5
- 2.Rxf6#
- 2.g8S#
- 1...Qb6
- 2.g8S#
- 1...Qd6
- 2.g8S#
- 1...Qe6
- 2.Sxe6#
- 1...Qc7
- 2.Rxf6#
- 2.g8S#
- 1...Ra3
- 2.Rh5#
- 2.g8S#
- 1...Rd5
- 2.g8S#
- 1...Rae5
- 2.g8S#
- 1...Re1
- 2.g8S#
- 1...Re2
- 2.Sxe2#
- 2.g8S#
- 1...Re3
- 2.g8S#
- 1...Re4
- 2.g8S#
- 1...Ree5
- 2.g8S#
- 1...Re6
- 2.Sxe6#
- 2.g8S#
- 1...Rd7
- 2.Sd3#
- 2.Sd5#
- 2.g8S#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 15
- REMOVED MATES = 16
- Sets
- Q(d);N_GUARD::R(F),XP(e)
- Q(d);N_GUARD,SBLOCK::R(F),XP(e)
- Q(d);N_GUARD,XB(A)::R(F),XP(e)
- R(c);N_GUARD::R1(F)
- R(c);S_CUTB(a)::P=S
- R(c);N_GUARD,SBLOCK::R1(F)
- R(g);S_CUTB(a)::P=S
- B(a);N_GUARD::P=S
- B(a);S_CUTR(c)::R1(F)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(d);N_GUARD,XS(E)::R(F),XP(e)
- Q(d);N_GUARD,XB(H)::B(A)+S(C)
- R(c);XS(E)::P=S
- R(g);XP(G)::R1(F)
- B(a);XS(E)::R1(F)
- Q(d);N_GUARD,P_PINR(F)::B(A)+S(C)
- Q(d);P_PINR(F)::P=S
- R(g);::P=S
- Refutation
- R(g);XB(H)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(d);N_GUARD,P_PINR(F),XS(E)::B(A)+S(C)
- R(c);XR(F)::P=S
- R(g);XS(E)::P=S
- R(g);XB(H)::B(A)+S(C)
- B(a);P_PINR(F),XS(E)::B(A)+S(C)
- Q(d);::P=S
- Refutation
- R(g);XP(G)
- Try
- Actual
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(d);XB(H)::B(A)+S(E)
- Q(d);N_GUARD,XS(C)::R(F),XP(e)
- R(c);XR(F)::P=S
- R(g);N_GUARD,SBLOCK,XP(G)::B(A)+S(E)
- R(g);XB(H)::B(A)+S(E)
- B(a);XS(C)::B(A)+S(E)
- Q(d);::P=S
- Q(d);N_GUARD::R(F),XP(e)
- Q(d);P_PINR(F)::P=S
- Q(d);P_PINR(F)::B(A)+S(E),XQ(d)
- R(c);::P=S
- R(g);::P=S
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