MESON Chess Problem Database
Problem Display
PID: 78076 (brn1QK2/1kP5/4N3/R7/7p/6nP/7B/8 w - - 0 1)
Lazard, Frederic
La Strategie, 1926
#2
7 + 6
| 6315 | Mes problemes et etudes d'echecs (Lazard) | 1929 |
SOLUTION
- SOUND
- Sets
- 1...Kb6
- 2.Qb5#
- 1...Sf1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sb6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sd6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sa7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Kb6
- Tries
- 1.Kf7?
- 1...Kb6
- 2.Qb5#
- 1...Sf1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sb6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sa7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sd6+!
- 1...Kb6
- 1.Kg8?
- 1...Kb6
- 2.Qb5#
- 1...Sf1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sb6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sd6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sa7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se7+!
- 1...Kb6
- 1.Bxg3?
- threat
- 2.cxb8Q#
- 2.cxb8R#
- 1...Kb6
- 2.Qb5#
- 1...Sb6
- 2.Sc5#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sd6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sa7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se7
- 2.cxb8Q#
- 2.cxb8R#
- 1...hxg3!
- threat
- 1.Ra1?
- 1...Sf1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sb6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sd6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sa7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Kb6!
- 1...Sf1
- 1.Ra2?
- 1...Sf1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sb6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sd6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sa7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Kb6!
- 1...Sf1
- 1.Ra3?
- 1...Sf1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sb6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sd6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sa7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Kb6!
- 1...Sf1
- 1.Ra4?
- 1...Sf1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sb6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sd6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sa7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Kb6!
- 1...Sf1
- 1.Kf7?
- Keys
- 1.Qd7!
- 1...Sb6+
- 2.c8Q#
- 2.c8B#
- 1...Sd6+
- 2.c8S#
- 1...Sa7+
- 2.c8S#
- 1...Se7+
- 2.c8S#
- 1...Kb6
- 2.Qb5#
- 1...Sf1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh1
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Se4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sh5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sb6+
- 1.Qd7!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(c);P-FLIGHT::QAR1(F)
- S(a);::PXR(e)=Q
- S(f);P_PINQ(F),SBLOCK::PXR(e)=Q
- S(f);P_PINQ(F)::PXR(e)=Q
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- K(c);P-FLIGHT::QAR1(F)
- S(a);::PXR(e)=Q
- S(f);SBLOCK::PXR(e)=Q
- S(f);::PXR(e)=Q
- Refutation
- S(f);CHECK
- Try
- K(G);P-FLIGHT
- Vars
- K(c);P-FLIGHT::QAR1(F)
- S(a);::PXR(e)=Q
- S(f);P_PINQ(F),SBLOCK::PXR(e)=Q
- S(f);P_PINQ(F)::PXR(e)=Q
- Refutation
- S(f);CHECK,P_PINQ(F)
- Try
- B(A);XS(a)
- Threat
- PXR(e)=Q
- Vars
- K(c);P-FLIGHT::QAR1(F)
- S(f);P_PINQ(F)::PXR(e)=Q
- Refutation
- P(b);XB(A)
- Try
- R(C);
- Vars
- S(a);::PXR(e)=Q
- S(f);P_PINQ(F),SBLOCK::PXR(e)=Q
- S(f);P_PINQ(F)::PXR(e)=Q
- Refutation
- K(c);P-FLIGHT
- Try
- R(C);
- Vars
- S(a);::PXR(e)=Q
- S(f);P_PINQ(F),SBLOCK::PXR(e)=Q
- S(f);P_PINQ(F)::PXR(e)=Q
- Refutation
- K(c);P-FLIGHT
- Try
- R(C);
- Vars
- S(a);::PXR(e)=Q
- S(f);P_PINQ(F),SBLOCK::PXR(e)=Q
- S(f);P_PINQ(F)::PXR(e)=Q
- Refutation
- K(c);P-FLIGHT
- Try
- R(C);
- Vars
- S(a);::PXR(e)=Q
- S(f);P_PINQ(F),SBLOCK::PXR(e)=Q
- S(f);P_PINQ(F)::PXR(e)=Q
- Refutation
- K(c);P-FLIGHT
- Try
- Actual
- Q(F);
- Vars
- S(f);CHECK,OGATE,SBLOCK::P=Q
- S(f);CHECK,OGATE::P=S
- K(c);P-FLIGHT::QAR1(F)
- S(a);::PXR(e)=Q
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