MESON Chess Problem Database
Problem Display
PID: 194039 (8/1Bn1pP2/b2N2q1/4k3/3R1R2/1Q1p4/K5n1/B7 w - - 0 1)
Guarini, Carlo
L'Italia Scacchistica, 1917
#2
8 + 7
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Rxf5#
- 1...Qxf7
- 2.Sxf7#
- 1...Qg3
- 2.Rf5#
- 1...Qxd6
- 2.Rde4#
- 1...Qf6
- 2.Rfe4#
- 1...Qh6
- 2.Rf5#
- 1...Qg7
- 2.Rf5#
- 1...Qg8
- 2.Rf5#
- 1...Sxf4
- 2.Rxd3#
- 1...Sb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...exd6
- 2.Ra4#
- 2.Rb4#
- 2.Rde4#
- 1...Qf5
- Tries
- 1.Sc4+?
- 1...Ke6
- 2.Qb6#
- 2.f8S#
- 1...Bxc4!
- 1...Ke6
- 1.Sc8?
- threat
- 2.Ra4#
- 2.Rb4#
- 2.Rde4#
- 1...Qe4
- 2.Rdxe4#
- 1...Bc4
- 2.Rde4#
- 1...Sd5
- 2.Rde4#
- 2.Qxd5#
- 1...Qb6
- 2.Rde4#
- 1...Qc6
- 2.Rde4#
- 1...Qd6
- 2.Rde4#
- 1...Sb5
- 2.Rde4#
- 2.Qd5#
- 1...Se6
- 2.Rde4#
- 2.Qd5#
- 1...Sxf4!
- threat
- 1.Se8?
- threat
- 2.Ra4#
- 2.Rb4#
- 2.Rde4#
- 1...Sxe8
- 2.Qd5#
- 1...Qe4
- 2.Rdxe4#
- 1...Bc4
- 2.Rde4#
- 1...Sd5
- 2.Rde4#
- 2.Qxd5#
- 1...Qb6
- 2.Rde4#
- 1...Qc6
- 2.Rde4#
- 1...Qd6
- 2.Rde4#
- 1...Sb5
- 2.Rde4#
- 2.Qd5#
- 1...Se6
- 2.Rde4#
- 2.Qd5#
- 1...Sxf4!
- threat
- 1.Rd5+?
- 1...Ke6
- 2.f8S#
- 1...Kxf4!
- 1...Ke6
- 1.f8Q?
- threat
- 2.Rxd3#
- 1...Qxd6
- 2.Rde4#
- 2.Rfe4#
- 2.Rf5#
- 2.Qf5#
- 1...Sd5
- 2.Qxd5#
- 1...Qe4
- 2.Rfxe4#
- 1...Qf5
- 2.Rxf5#
- 2.Qxf5#
- 1...Qf7
- 2.Sxf7#
- 1...Qf6
- 2.Rfe4#
- 1...Sb5
- 2.Qd5#
- 1...Se6
- 2.Rd5#
- 2.Qd5#
- 1...d2
- 2.Rxd2#
- 2.Rd3#
- 1...Bc4!
- threat
- 1.f8R?
- threat
- 2.Rxd3#
- 1...Qxd6
- 2.Rde4#
- 2.Rfe4#
- 2.R4f5#
- 2.R8f5#
- 1...Sd5
- 2.Qxd5#
- 1...Qe4
- 2.Rfxe4#
- 1...Qf5
- 2.R4xf5#
- 2.R8xf5#
- 1...Qf7
- 2.Sxf7#
- 1...Qf6
- 2.Rfe4#
- 1...Sb5
- 2.Qd5#
- 1...Se6
- 2.Rd5#
- 2.Qd5#
- 1...d2
- 2.Rxd2#
- 2.Rd3#
- 1...Bc4!
- threat
- 1.Sc4+?
- Keys
- 1.Qb6!
- threat
- 2.Rde4#
- 1...Qxf7+
- 2.Sxf7#
- 1...Qe6+
- 2.Rc4#
- 1...Bc4+
- 2.Sxc4#
- 1...Ke6
- 2.Sc4#
- 1...Bxb7
- 2.Sc4#
- 1...Qe4
- 2.Rdxe4#
- threat
- 1.Qb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 13
- Sets
- Q(e);N_GUARD::R1(E),XQ(e)
- Q(e);P_PINQ(C),XP(H)::S(F),XQ(e)
- Q(e);N_GUARD::R1(E)
- Q(e);SBLOCK,XS(F)::B(A)+R(D),DCHECK
- Q(e);N_GUARD,SBLOCK::R1(E)
- S(a);SBLOCK,XR(E)::B(A)+R(D),XP(b)
- S(f);N_GUARD::QAR1(C)
- S(f);N_GUARD::QAR1(C),XS(f)
- Tries
- Try
- S(F);CHECK
- Refutation
- B(d);P_PINQ(C),XS(F)
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- Q(e);::B(A)+R(D),DCHECK,XQ(e)
- B(d);P_PINQ(C)::B(A)+R(D),DCHECK
- Q(e);::B(A)+R(D),DCHECK
- Refutation
- S(a);XR(E)
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- S(f);N_GUARD,XS(F)::QAR1(C)
- Q(e);::B(A)+R(D),DCHECK,XQ(e)
- B(d);P_PINQ(C)::B(A)+R(D),DCHECK
- Q(e);::B(A)+R(D),DCHECK
- Refutation
- S(a);XR(E)
- Try
- R(D);CHECK
- Vars
- K(c);P-FLIGHT::P=S
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- P(H);
- Threat
- B(A)+R(D),XP(b)
- Vars
- S(f);N_GUARD::QAR1(C),XS(f)
- Q(e);N_GUARD::R1(E),XQ(e)
- Q(e);N_GUARD,P_PINQ(C)::S(F),XQ(e)
- Q(e);N_GUARD::R1(E)
- S(f);N_GUARD::QAR1(C)
- Refutation
- B(d);P_PINQ(C)
- Try
- P(H);
- Threat
- B(A)+R(D),XP(b)
- Vars
- S(f);N_GUARD::QAR1(C),XS(f)
- Q(e);N_GUARD::R1(E),XQ(e)
- Q(e);N_GUARD,P_PINQ(C)::S(F),XQ(e)
- Q(e);N_GUARD::R1(E)
- S(f);N_GUARD::QAR1(C)
- Refutation
- B(d);P_PINQ(C)
- Try
- Actual
- Q(C);
- Threat
- B(A)+R(D),DCHECK
- Vars
- Q(e);CHECK,XP(H)::S(F),XQ(e)
- Q(e);CHECK,SBLOCK::B(A)+R(D)
- B(d);CHECK,N_GUARD::S(F),XB(d)
- K(c);P-FLIGHT::QAR(C)+S(F)
- B(d);N_GUARD,XB(G)::S(F)
- Q(e);::B(A)+R(D),DCHECK,XQ(e)
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