MESON Chess Problem Database
Problem Display
PID: 267819 (3K4/2p2R2/3p1Qn1/2B1N3/1N2k3/b2p1p1b/r4Pq1/1Bn5 w - - 0 1)
Gross, Erwin
diagrammes, 1976
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Bf5
- 2.Qxf5#
- 1...Se2
- 2.Bxd3#
- 1...Sb3
- 2.Bxd3#
- 1...Sf4
- 2.Qxf4#
- 1...Sh4
- 2.Qf4#
- 1...Sxe5
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sh8
- 2.Qf4#
- 1...dxe5
- 2.Qc6#
- 1...Bf5
- Tries
- 1.Sexd3?
- threat
- 2.Qd4#
- 1...Qxf2
- 2.Sxf2#
- 1...dxc5
- 2.Sxc5#
- 1...Bb2
- 2.Sxc1#
- 1...Se2
- 2.Sb2#
- 1...Sb3
- 2.Sb2#
- 1...Se5
- 2.Qf4#
- 1...Qg5!
- threat
- 1.Sg4?
- threat
- 2.Qd4#
- 2.Qf5#
- 2.Qxg6#
- 1...Qxf2
- 2.Qf5#
- 2.Qxg6#
- 1...Qxg4
- 2.Qd4#
- 1...Bxb4
- 2.Qd4#
- 2.Qf5#
- 1...Bxg4
- 2.Qd4#
- 1...Bb2
- 2.Qf5#
- 2.Qxg6#
- 1...Se2
- 2.Bxd3#
- 2.Qf5#
- 2.Qxg6#
- 1...Sb3
- 2.Bxd3#
- 2.Qf5#
- 2.Qxg6#
- 1...Sf4
- 2.Qd4#
- 2.Qxf4#
- 2.Qf5#
- 1...Sh4
- 2.Re7#
- 2.Qd4#
- 2.Qe7#
- 2.Qf4#
- 2.Qe6#
- 1...Se5
- 2.Qf4#
- 2.Qf5#
- 1...Se7
- 2.Rxe7#
- 2.Qd4#
- 2.Qxe7#
- 2.Qf4#
- 2.Qe6#
- 1...Sf8
- 2.Qd4#
- 2.Qf4#
- 2.Qf5#
- 1...Sh8
- 2.Re7#
- 2.Qd4#
- 2.Qe7#
- 2.Qf4#
- 2.Qf5#
- 2.Qe6#
- 1...dxc5!
- threat
- 1.Sxg6?
- threat
- 2.Qd4#
- 2.Qf4#
- 1...Qxf2
- 2.Qf4#
- 1...Bxb4
- 2.Qd4#
- 1...dxc5
- 2.Qe5#
- 2.Qf4#
- 1...Qh2
- 2.Qd4#
- 2.Qxf3#
- 1...Qg3
- 2.Qd4#
- 1...Qg4
- 2.Qd4#
- 1...Bb2
- 2.Qf4#
- 1...Bf5
- 2.Qd4#
- 2.Qxf5#
- 1...Se2
- 2.Bxd3#
- 1...Sb3
- 2.Bxd3#
- 2.Qf4#
- 1...Qg5!
- threat
- 1.Sexd3?
- Keys
- 1.Sxf3!
- threat
- 2.Qd4#
- 1...Qxf2
- 2.Sg5#
- 1...dxc5
- 2.Qc6#
- 1...Bf5
- 2.Qxf5#
- 1...Sf4
- 2.Qxf4#
- 1...Qg5
- 2.Sxg5#
- 1...Bb2
- 2.Sd2#
- 1...Se2
- 2.Bxd3#
- 1...Sb3
- 2.Bxd3#
- 1...Se5
- 2.Qf4#
- threat
- 1.Sxf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- B(g);N_GUARD::QAB1(F),XB(g)
- S(a);N_GUARD::B(A),XP(e)
- S(j);N_GUARD::QAR1(F),XS(j)
- S(j);N_GUARD::QAR1(F)
- S(j);N_GUARD,XS(E)::QAR1(F)
- P(i);OGATE,SBLOCK,XS(E)::QAB(F)
- Tries
- Try
- S(E);XP(e)
- Threat
- QAR1(F)
- Vars
- Q(c);XP(B)::B(A)+S(E),DCHECK,XQ(c)
- P(i);XB(D)::B(A)+S(E),DCHECK,XP(i)
- B(d);S_CUTR(b)::B(A)+S(E),XS(a)
- S(a);N_GUARD::B(A)+S(E)
- S(j);N_GUARD::QAR1(F)
- Refutation
- Q(c);P_PINQ(F)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(c);XS(E)::QAR1(F)
- B(g);XS(E)::QAR1(F)
- Refutation
- P(i);XB(D)
- Try
- S(E);XS(j)
- Threat
- DUALS(2)
- Vars
- Q(c);XP(B)::QAR1(F)
- B(d);XS(C)::QAR1(F)
- Q(c);::QAR1(F)
- B(d);::QAR1(F)
- S(a);N_GUARD::B(A),XP(e)
- Refutation
- Q(c);P_PINQ(F)
- Try
- Actual
- S(E);XP(f)
- Threat
- QAR1(F)
- Vars
- Q(c);N_GUARD,XP(B)::S(E)
- P(i);OGATE,XB(D)::QAB(F)
- B(g);N_GUARD::QAB1(F),XB(g)
- S(j);N_GUARD::QAR1(F),XS(j)
- Q(c);N_GUARD,P_PINQ(F)::S(E),XQ(c)
- B(d);S_CUTR(b)::S(E)
- S(a);N_GUARD::B(A),XP(e)
- S(j);N_GUARD::QAR1(F)
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