MESON Chess Problem Database
Problem Display
PID: 147259 (8/1Q6/Kn6/B4N2/P1R1pp2/N2kqb1R/4np2/5B2 w - - 0 1)
Ceriani, Luigi
Grantham Journal, 1927
(First published on Wed Jul 20 1927)
#2
9 + 8
| 14868 | Pirnie Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Rd4#
- 2.Qxe4#
- 1...Qd2
- 2.Rd4#
- 2.Qxe4#
- 1...Qd4
- 2.Rxd4#
- 1...Qc5
- 2.Qxe4#
- 1...Bh1
- 2.Rd4#
- 1...Bg2
- 2.Rd4#
- 1...Bg4
- 2.Rd4#
- 2.Qxe4#
- 1...Bh5
- 2.Rd4#
- 2.Qxe4#
- 1...Sxa4
- 2.Qb1#
- 1...Sxc4
- 2.Qb1#
- 2.Qb3#
- 1...Sd5
- 2.Qb1#
- 1...Sd7
- 2.Qb1#
- 2.Qb3#
- 1...Sa8
- 2.Qb1#
- 2.Qb3#
- 1...Sc8
- 2.Qb1#
- 2.Qb3#
- 1...Qc1
- Tries
- 1.Bxe2+?
- 1...Qxe2
- 2.Rd4#
- 1...Bxe2
- 2.Rd4#
- 2.Qxe4#
- 1...Kxe2!
- 1...Qxe2
- 1.Rxf3?
- threat
- 2.Rd4#
- 2.Qxe4#
- 1...Qxf3
- 2.Rd4#
- 1...Sxc4
- 2.Qd5#
- 2.Qb1#
- 2.Qb3#
- 1...Sd5
- 2.Rd4#
- 2.Qxd5#
- 2.Qb1#
- 1...exf3!
- threat
- 1.Rg3?
- 1...Sxa4
- 2.Qb1#
- 1...Sxc4
- 2.Qb1#
- 2.Qb3#
- 1...Qc5
- 2.Qxe4#
- 1...Qc1
- 2.Rd4#
- 2.Qxe4#
- 1...Qd2
- 2.Rd4#
- 2.Qxe4#
- 1...Qd4
- 2.Rxd4#
- 1...Bh1
- 2.Rd4#
- 1...Bg2
- 2.Rd4#
- 1...Bg4
- 2.Rd4#
- 2.Qxe4#
- 1...Bh5
- 2.Rd4#
- 2.Qxe4#
- 1...Sd5
- 2.Qb1#
- 1...Sd7
- 2.Qb1#
- 2.Qb3#
- 1...Sa8
- 2.Qb1#
- 2.Qb3#
- 1...Sc8
- 2.Qb1#
- 2.Qb3#
- 1...fxg3!
- 1...Sxa4
- 1.Qxe4+?
- 1...Bxe4
- 2.Rd4#
- 1...Qxe4!
- 1...Bxe4
- 1.Qd5+?
- 1...Qd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Sxd5!
- 1...Qd4
- 1.Qxb6?
- threat
- 2.Qb1#
- 2.Qb3#
- 1...Qc1
- 2.Rd4#
- 2.Qd4#
- 2.Qd8#
- 2.Qd6#
- 1...Qd2
- 2.Rd4#
- 2.Qd4#
- 2.Qd8#
- 2.Qd6#
- 1...Qd4
- 2.Rxd4#
- 2.Qxd4#
- 2.Qb1#
- 1...Qxb6+!
- threat
- 1.Qb8?
- 1...Sxa4
- 2.Qb1#
- 1...Sxc4
- 2.Qb1#
- 2.Qb3#
- 1...Qc1
- 2.Rd4#
- 1...Qd2
- 2.Rd4#
- 1...Qd4
- 2.Rxd4#
- 1...Bh1
- 2.Rd4#
- 1...Bg2
- 2.Rd4#
- 1...Bg4
- 2.Rd4#
- 1...Bh5
- 2.Rd4#
- 1...Sd5
- 2.Qb1#
- 1...Sd7
- 2.Qb1#
- 2.Qb3#
- 1...Sa8
- 2.Qb1#
- 2.Qb3#
- 1...Sc8
- 2.Qb1#
- 2.Qb3#
- 1...Qc5!
- 1...Sxa4
- 1.Bxe2+?
- Keys
- 1.Rc2!
- 1...Sxa4
- 2.Qb5#
- 1...Qc5
- 2.Bxe2#
- 2.Rd2#
- 1...Qc1
- 2.Bxe2#
- 1...Qd2
- 2.Rxd2#
- 1...Qd4
- 2.Bxe2#
- 2.Rd2#
- 1...Bh1
- 2.Bxe2#
- 2.Rd2#
- 1...Bg2
- 2.Bxe2#
- 2.Rd2#
- 1...Bg4
- 2.Rd2#
- 1...Bh5
- 2.Rd2#
- 1...Sc4
- 2.Qb3#
- 1...Sd5
- 2.Qb5#
- 1...Sd7
- 2.Qb3#
- 2.Qb5#
- 1...Sa8
- 2.Qb3#
- 2.Qb5#
- 1...Sc8
- 2.Qb3#
- 2.Qb5#
- 1...Sxa4
- 1.Rc2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- Q(d);N_GUARD,P_SPINB(e)::R1(E),XQ(d)
- Q(d);N_GUARD,P_SPINB(e)::QAB1(I),XP(f)
- B(e);P_SPINQ(d)::R1(E)
- S(h);OGATE,XP(D)::QAB(I)
- S(h);OGATE::QAB(I)
- Tries
- Try
- B(A);CHECK,XS(a)
- Vars
- Q(d);P_SPINB(e),SBLOCK,XB(A)::R1(E)
- Refutation
- K(c);S_FLIGHT,XB(A)
- Try
- R(C);P_PINQ(d),XB(e)
- Threat
- DUALS(2)
- Vars
- Q(d);N_SPINQ(d),XR(C)::R1(E)
- Refutation
- P(f);N_SPINQ(d),XR(C)
- Try
- R(C);
- Vars
- S(h);OGATE,XP(D)::QAB(I)
- Q(d);N_GUARD,P_SPINB(e)::QAB1(I),XP(f)
- Q(d);N_GUARD,P_SPINB(e)::R1(E),XQ(d)
- B(e);P_SPINQ(d)::R1(E)
- S(h);OGATE::QAB(I)
- Refutation
- P(g);XR(C)
- Try
- Q(I);CHECK,XP(f)
- Vars
- B(e);P_SPINQ(d),XQ(I)::R1(E)
- Refutation
- Q(d);P_SPINB(e),XQ(I)
- Try
- Q(I);CHECK
- Refutation
- S(h);XQ(I)
- Try
- Q(I);XS(h)
- Threat
- DUALS(2)
- Refutation
- Q(d);CHECK,P_SPINB(e),XQ(I)
- Try
- Q(I);
- Vars
- S(h);OGATE,XP(D)::QAB(I)
- Q(d);N_GUARD,P_SPINB(e)::R1(E)
- Q(d);N_GUARD,P_SPINB(e)::R1(E),XQ(d)
- B(e);P_SPINQ(d)::R1(E)
- S(h);OGATE::QAB(I)
- Refutation
- Q(d);P_SPINB(e)
- Try
- Actual
- R(E);
- Vars
- S(h);OGATE,XP(D)::QAB(I)
- Q(d);N_GUARD,P_SPINB(e)::B(A),XS(a)
- Q(d);N_GUARD,P_SPINB(e)::R1(E),XQ(d)
- B(e);P_SPINQ(d)::R1(E)
- S(h);OGATE::QAR2(I)
- S(h);OGATE::QAB(I)
Developed and maintained by Brian Stephenson.
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