MESON Chess Problem Database
Problem Display
PID: 228936 (8/1NQ1Pr2/4Bb1p/Rb2P1pK/Rn1qk1P1/6P1/3P4/B3N3 w - - 0 1)
Ferrari, Aristide
Ferrari, Marco
Il Secolo, 1926
#2
13 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Sd6#
- 1...Qf2
- 2.Sd6#
- 1...Qe3
- 2.Sd6#
- 1...Qc5
- 2.Sxc5#
- 1...Qa7
- 2.Sd6#
- 1...Qd3
- 2.Sc5#
- 1...Qc4
- 2.Sd6#
- 1...Qd5
- 2.Bf5#
- 1...Qd6
- 2.Sxd6#
- 1...Qd7
- 2.Sc5#
- 1...Qd8
- 2.Sc5#
- 1...Bf1
- 2.Bf5#
- 1...Be2
- 2.Bf5#
- 1...Bd3
- 2.Bf5#
- 1...Bxa4
- 2.Bf5#
- 1...Bc4
- 2.Bf5#
- 1...Ba6
- 2.Bf5#
- 1...Bc6
- 2.Bf5#
- 1...Be8
- 2.Bf5#
- 1...Sa2
- 2.Sc5#
- 2.Rxd4#
- 1...Sc2
- 2.Sc5#
- 1...Sd3
- 2.Rxd4#
- 1...Sd5
- 2.Sc5#
- 2.Bf5#
- 2.Rxd4#
- 1...Sa6
- 2.Rxd4#
- 1...Sc6
- 2.Sc5#
- 1...Qg1
- Tries
- 1.Rxb4?
- threat
- 2.Sc5#
- 2.Rxd4#
- 1...Bxe5
- 2.Sc5#
- 1...Bxe7
- 2.Rxd4#
- 1...Qc4
- 2.Sc5#
- 2.Sd6#
- 1...Bc4
- 2.Bf5#
- 1...Qxb4!
- threat
- 1.Qc5?
- threat
- 2.Bf5#
- 2.Qxd4#
- 1...Qxa1
- 2.Sd6#
- 2.Bf5#
- 2.Qe3#
- 2.Qd5#
- 1...Qxc5
- 2.Sxc5#
- 1...Qxe5
- 2.Qe3#
- 1...Qxd2
- 2.Bf5#
- 1...Bxe7
- 2.Qxd4#
- 1...Sd5
- 2.Qxd4#
- 2.Qxd5#
- 1...Qg1
- 2.Sd6#
- 2.Bd5#
- 2.Bf5#
- 2.Qd5#
- 1...Qb2
- 2.Sd6#
- 2.Bf5#
- 2.Qe3#
- 2.Qd5#
- 1...Qf2
- 2.Sd6#
- 2.Bd5#
- 2.Qd5#
- 1...Qc3
- 2.Sd6#
- 2.Bf5#
- 2.Qd5#
- 1...Qe3
- 2.Sd6#
- 2.Bd5#
- 2.Bf5#
- 2.Qxe3#
- 2.Qd5#
- 1...Qd3
- 2.Bf5#
- 1...Qc4
- 2.Sd6#
- 2.Bf5#
- 2.Qe3#
- 1...Qd5
- 2.Bxd5#
- 2.Bf5#
- 2.Qe3#
- 2.Qxd5#
- 1...Qd6
- 2.Sxd6#
- 2.Bf5#
- 2.Qe3#
- 1...Qd7
- 2.Qe3#
- 1...Qd8
- 2.Bf5#
- 2.Qe3#
- 1...Bd7
- 2.Qxd4#
- 1...Bg7
- 2.Qxd4#
- 1...Bh8
- 2.Qxd4#
- 1...Sc2
- 2.Sd6#
- 2.Bf5#
- 2.Qd5#
- 1...Sc6
- 2.Sd6#
- 2.Bf5#
- 2.Qd5#
- 1...Bxe5!
- threat
- 1.Qc6+?
- 1...Kxe5
- 2.Sf3#
- 1...Qd5
- 2.Sc5#
- 2.Sd6#
- 2.Bxd5#
- 2.Bf5#
- 2.Qxd5#
- 1...Bxc6
- 2.Bf5#
- 1...Sd5
- 2.Qxd5#
- 1...Sxc6!
- 1...Kxe5
- 1.Rxb4?
- Keys
- 1.Qc4!
- threat
- 2.Qxd4#
- 1...Kxe5
- 2.Qe2#
- 1...Qxc4
- 2.Sd6#
- 1...Bxc4
- 2.Bf5#
- 1...Bxe5
- 2.Sc5#
- 1...Sc2
- 2.Qd5#
- 1...Sc6
- 2.Qd5#
- threat
- 1.Qc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 19
- Sets
- Q(b);N_GUARD,P_SPINS(a)::S(K)
- Q(b);N_GUARD,P_SPINS(a)::S(K),XQ(b)
- Q(b);N_GUARD::S(K)
- Q(b);P_SPINS(a),SBLOCK::B(J)
- B(d);::B(J)
- B(d);P_PINP(F)::B(J)
- B(d);XR(E)::B(J)
- S(a);P_SPINQ(b)::S(K)
- S(a);OGATE,P_SPINQ(b)::R1(E),XQ(b)
- Tries
- Try
- R(E);P_PINQ(b),XS(a)
- Threat
- DUALS(2)
- Vars
- B(f);XP(H)::S(K)
- B(f);XP(M)::R1(E),XQ(b)
- B(d);N_SPINQ(b)::B(J)
- Refutation
- Q(b);N_SPINQ(b),XR(E)
- Try
- Q(L);
- Threat
- DUALS(2)
- Vars
- Q(b);P_SPINS(a),XQ(L)::S(K),XQ(b)
- Q(b);OGATE,P_SPINS(a),XP(H)::QAR1(L)
- Q(b);P_SPINS(a),XP(C)::B(J)
- B(f);XP(M)::QAR1(L),XQ(b)
- Q(b);P_SPINS(a)::B(J)
- Q(b);OGATE,P_SPINS(a)::QAR1(L)
- B(d);::QAR1(L),XQ(b)
- B(f);::QAR1(L),XQ(b)
- Refutation
- B(f);XP(H)
- Try
- Q(L);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINB(d),P_SPINQ(b),XP(H)::S(B)
- B(d);XQ(L)::B(J)
- S(a);N_GUARD,P_SPINQ(b),P_SPINS(a)::QAB1(L),XS(a)
- Refutation
- S(a);P_SPINQ(b),XQ(L)
- Try
- Actual
- Q(L);P_PINQ(b)
- Threat
- QAR1(L),XQ(b)
- Vars
- K(c);P-FLIGHT,P_SPINB(d),XP(H)::QAR(L)
- Q(b);N_SPINQ(b),XQ(L)::S(K)
- B(d);N_SPINQ(b),XQ(L)::B(J)
- B(f);SBLOCK,XP(H)::S(K)
- S(a);N_GUARD::QAB1(L)
Developed and maintained by Brian Stephenson.
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