MESON Chess Problem Database
Problem Display
PID: 32376 (2n1r1B1/4PN1p/5Rb1/1Ppk1N1R/Q7/4B2p/1p6/1K6 w - - 0 1)
Mari, Alberto
1st Prize, De Problemist, 1927
#2
10 + 8
| 20 | De Problemist | 1928 |
SOLUTION
- SOUND
- Sets
- 1...Bxf5+
- 2.Rhxf5#
- 1...Bxf7
- 2.Sg3#
- 2.Sh4#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...Sb6
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sa7
- 2.Rd6#
- 1...Sxe7
- 2.Rd6#
- 1...c4
- 2.Qa8#
- 1...Bxf5+
- Tries
- 1.Sg5+?
- 1...Rxg8
- 2.Qe4#
- 1...Bf7
- 2.Qe4#
- 1...Ke5!
- 1...Rxg8
- 1.Sd6+?
- 1...Rxg8
- 2.Qe4#
- 1...Bf7
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sh6#
- 2.Sg7#
- 2.Qe4#
- 1...Ke5!
- 1...Rxg8
- 1.Sh6+?
- 1...Ke5
- 2.Sg4#
- 1...Bf7
- 2.Sg3#
- 2.Sh4#
- 2.Sd6#
- 2.Sg7#
- 1...Rxg8!
- 1...Ke5
- 1.Bxc5?
- threat
- 2.Qd4#
- 1...Bxf5+
- 2.Rhxf5#
- 1...Kxc5!
- threat
- 1.Rh4?
- threat
- 2.Qd1#
- 2.Qc4#
- 2.Qe4#
- 2.Qa8#
- 1...Rxe7
- 2.Qd1#
- 2.Qc4#
- 1...Bxf7
- 2.Qe4#
- 1...Sxe7
- 2.Rd6#
- 2.Qd1#
- 2.Qc4#
- 2.Qe4#
- 1...Bh5
- 2.Qc4#
- 2.Qe4#
- 2.Qa8#
- 1...Sb6
- 2.Rd6#
- 2.Qd1#
- 2.Qe4#
- 1...Sd6
- 2.Rxd6#
- 2.Qd1#
- 1...Sa7
- 2.Rd6#
- 2.Qd1#
- 2.Qc4#
- 2.Qe4#
- 1...c4
- 2.Qd1#
- 2.Qxc4#
- 2.Qa8#
- 1...Bxf5+!
- threat
- 1.Re6?
- threat
- 2.Re5#
- 2.Qe4#
- 1...Bxf5+
- 2.Qe4#
- 1...Rxe7
- 2.Qe4#
- 1...Bxf7
- 2.Qe4#
- 1...Sd6
- 2.Re5#
- 2.Rxd6#
- 1...c4
- 2.Re5#
- 1...Kxe6!
- threat
- 1.Rxg6?
- threat
- 2.Sg3#
- 2.Sh4#
- 2.S5d6#
- 2.S5h6#
- 2.Sg7#
- 1...Rxe7
- 2.Sxe7#
- 1...Sxe7
- 2.Sxe7#
- 2.Rd6#
- 1...c4
- 2.Sg3#
- 2.S5d6#
- 2.Qa8#
- 1...Sd6
- 2.S5xd6#
- 2.Rxd6#
- 1...h6
- 2.Sg3#
- 2.Sh4#
- 2.S5d6#
- 2.S5xh6#
- 2.Sg7#
- 1...hxg6!
- threat
- 1.Qd1+?
- 1...Ke4
- 2.Rh4#
- 2.Re6#
- 1...Kc4!
- 1...Ke4
- 1.Qc2?
- threat
- 2.Qd3#
- 1...Bxf7
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Sh6#
- 2.Sg7#
- 1...c4!
- threat
- 1.Qb3+?
- 1...Ke4
- 2.Sg3#
- 1...c4!
- 1...Ke4
- 1.Qa2+?
- 1...c4
- 2.Qa8#
- 1...Ke4!
- 1...c4
- 1.Sg5+?
- Keys
- 1.Qa3!
- threat
- 2.Qd3#
- 1...Kc4
- 2.Sd6#
- 1...Ke4
- 2.Sg3#
- 1...Bxf7
- 2.Sd6#
- 1...c4
- 2.Qa8#
- threat
- 1.Qa3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- B(e);CHECK,OGATE,P_SPINB(e),XS(E)::R(F),XB(e)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- S(g);N_GUARD,XP(H)::R1(G)
- P(c);SBLOCK::QAB(C)
- Tries
- Try
- S(I);CHECK
- Vars
- R(h);XB(J)::QAB1(C)
- B(e);N_PINS(E),P_SPINB(e)::QAB1(C)
- Refutation
- K(d);P-FLIGHT
- Try
- S(I);CHECK
- Vars
- R(h);XB(J)::QAB1(C)
- Refutation
- K(d);P-FLIGHT
- Try
- S(I);CHECK
- Vars
- K(d);P-FLIGHT::S(I)
- Refutation
- R(h);XB(J)
- Try
- B(B);XP(c)
- Threat
- QAR1(C)
- Vars
- B(e);CHECK,OGATE,P_SPINB(e),XS(E)::R(F),XB(e)
- Refutation
- K(d);P-FLIGHT,XB(B)
- Try
- R(F);
- Threat
- DUALS(4)
- Vars
- B(e);N_PINS(E),P_SPINB(e),XS(I)::QAB1(C)
- Refutation
- B(e);CHECK,XS(E)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- B(e);CHECK,P_SPINB(e),XS(E)::QAB1(C)
- R(h);XP(H)::QAB1(C)
- B(e);N_PINS(E),XS(I)::QAB1(C)
- P(c);::R1(G)
- Refutation
- K(d);S_FLIGHT,XR(G)
- Try
- R(G);N_SPINS(E),XB(e)
- Threat
- DUALS(5)
- Vars
- R(h);XP(H)::R(F)+S(E),DCHECK,XR(h)
- Refutation
- P(f);XR(G)
- Try
- Q(C);CHECK
- Refutation
- K(d);S_FLIGHT
- Try
- Q(C);N_SPINS(E)
- Threat
- QAR2(C)
- Refutation
- P(c);
- Try
- Q(C);CHECK
- Vars
- K(d);N_PINS(E),S_FLIGHT::S(E)
- Refutation
- P(c);P_SPINP(c)
- Try
- Q(C);CHECK
- Vars
- P(c);P_SPINP(c),SBLOCK::QAB(C)
- Refutation
- K(d);N_PINS(E),S_FLIGHT
- Try
- Actual
- Q(C);
- Threat
- QAR2(C)
- Vars
- K(d);S_FLIGHT::B(J)+S(I),DCHECK
- K(d);N_PINS(E),S_FLIGHT::S(E)
- B(e);N_PINS(E),P_SPINB(e),XS(I)::R(F)+S(E)
- P(c);SBLOCK::QAB(C)
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