MESON Chess Problem Database
Problem Display
PID: 78082 (3KR3/2p5/b1P5/8/2Pk4/Q3N3/1P3r2/4N3 w - - 0 1)
Lazard, Frederic
Source?, 1928
#2
8 + 4
| 6315 | Mes problemes et etudes d'echecs (Lazard) | 1929 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.S1c2#
- 1...Rxb2
- 2.Sf3#
- 1...Rc2
- 2.S1xc2#
- 2.Sf3#
- 1...Rd2
- 2.Sf3#
- 1...Re2
- 2.Sf3#
- 1...Rg2
- 2.Sf3#
- 1...Rh2
- 2.Sf3#
- 1...Rf3
- 2.S1c2#
- 2.Sxf3#
- 1...Rf4
- 2.S1c2#
- 1...Rf5
- 2.S1c2#
- 1...Rf6
- 2.S1c2#
- 1...Rf7
- 2.S1c2#
- 1...Rf8
- 2.S1c2#
- 1...Bxc4
- 2.Qa7#
- 1...Bb5
- 2.Qa7#
- 1...Bb7
- 2.Qa7#
- 1...Bc8
- 2.Qa7#
- 1...Rf1
- Tries
- 1.Kxc7?
- threat
- 2.Qd6#
- 1...Rxb2
- 2.Sf3#
- 1...Bxc4
- 2.Qa7#
- 1...Rf5
- 2.S1c2#
- 1...Rf6
- 2.S1c2#
- 1...Rf7+!
- threat
- 1.Re6?
- 1...Rxb2
- 2.Sf3#
- 1...Bxc4
- 2.Qa7#
- 1...Rf1
- 2.S1c2#
- 1...Rc2
- 2.S1xc2#
- 2.Sf3#
- 1...Rd2
- 2.Sf3#
- 1...Re2
- 2.Sf3#
- 1...Rg2
- 2.Sf3#
- 1...Rh2
- 2.Sf3#
- 1...Rf3
- 2.S1c2#
- 2.Sxf3#
- 1...Rf4
- 2.S1c2#
- 1...Rf5
- 2.S1c2#
- 1...Rf6
- 2.S1c2#
- 1...Rf7
- 2.S1c2#
- 1...Bb5
- 2.Qa7#
- 1...Bb7
- 2.Qa7#
- 1...Bc8
- 2.Qa7#
- 1...Rf8+!
- 1...Rxb2
- 1.Re7?
- 1...Rxb2
- 2.Sf3#
- 1...Bxc4
- 2.Qa7#
- 1...Rf1
- 2.S1c2#
- 1...Rc2
- 2.S1xc2#
- 2.Sf3#
- 1...Rd2
- 2.Sf3#
- 1...Re2
- 2.Sf3#
- 1...Rg2
- 2.Sf3#
- 1...Rh2
- 2.Sf3#
- 1...Rf3
- 2.S1c2#
- 2.Sxf3#
- 1...Rf4
- 2.S1c2#
- 1...Rf5
- 2.S1c2#
- 1...Rf6
- 2.S1c2#
- 1...Rf7
- 2.S1c2#
- 1...Bb5
- 2.Qa7#
- 1...Bb7
- 2.Qa7#
- 1...Bc8
- 2.Qa7#
- 1...Rf8+!
- 1...Rxb2
- 1.Qa5?
- threat
- 2.Qd5#
- 2.Qe5#
- 1...Rxb2
- 2.Qe5#
- 1...Bxc4
- 2.Qe5#
- 2.Qa7#
- 1...Bb5
- 2.Qa7#
- 1...Rf5!
- threat
- 1.b4?
- threat
- 2.Qd3#
- 1...Rd2
- 2.Sf3#
- 1...Bxc4!
- threat
- 1.c5?
- threat
- 2.Qc3#
- 1...Rxb2
- 2.Sf3#
- 1...Rc2
- 2.S1xc2#
- 2.Sf3#
- 1...Bc4!
- threat
- 1.Kxc7?
- Keys
- 1.Qb4!
- 1...Rxb2
- 2.Sf5#
- 1...Bxc4
- 2.Qxc4#
- 1...Rf1
- 2.S3c2#
- 1...Rc2
- 2.S3xc2#
- 2.Sf5#
- 1...Rd2
- 2.Sf5#
- 1...Re2
- 2.Sf5#
- 1...Rg2
- 2.Sf5#
- 1...Rh2
- 2.Sf5#
- 1...Rf3
- 2.S3c2#
- 1...Rf4
- 2.S3c2#
- 1...Rf5
- 2.S3c2#
- 2.Sxf5#
- 1...Rf6
- 2.S3c2#
- 1...Rf7
- 2.S3c2#
- 1...Rf8
- 2.S3c2#
- 1...Bb5
- 2.cxb5#
- 1...Bb7
- 2.c5#
- 1...Bc8
- 2.c5#
- 1...Rxb2
- 1.Qb4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 14
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::S(A)
- R(a);N_GUARD,XP(B)::S(A)
- R(a);N_GUARD,P_PINR(H)::S(A)
- B(c);OGATE,XP(E)::QAB(C)
- B(c);OGATE::QAB(C)
- Tries
- Try
- K(G);S_FLIGHT,XP(d)
- Threat
- QAR2(C)
- Vars
- R(a);N_GUARD,XP(B)::S(A)
- B(c);OGATE,XP(E)::QAB(C)
- R(a);N_GUARD::S(A)
- Refutation
- R(a);CHECK
- Try
- R(H);
- Vars
- R(a);N_GUARD,XP(B)::S(A)
- B(c);OGATE,XP(E)::QAB(C)
- R(a);N_GUARD::S(A)
- B(c);OGATE::QAB(C)
- Refutation
- R(a);CHECK
- Try
- R(H);
- Vars
- R(a);N_GUARD,XP(B)::S(A)
- B(c);OGATE,XP(E)::QAB(C)
- R(a);N_GUARD::S(A)
- B(c);OGATE::QAB(C)
- Refutation
- R(a);CHECK
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- R(a);XP(B)::QAB1(C)
- B(c);OGATE::QAB(C)
- Refutation
- R(a);
- Try
- P(B);
- Threat
- QAR1(C)
- Vars
- R(a);N_GUARD::S(A)
- Refutation
- B(c);XP(E)
- Try
- P(E);
- Threat
- QAB1(C)
- Vars
- R(a);N_GUARD,XP(B)::S(A)
- Refutation
- B(c);
- Try
- Actual
- Q(C);
- Vars
- R(a);N_GUARD,XP(B)::S(D)
- B(c);OGATE,P_SPINB(c),XP(E)::QAR1(C),XB(c)
- R(a);N_GUARD::S(D)
- R(a);N_GUARD,P_PINR(H)::S(D)
- B(c);OGATE::QAR(C)+P(E),XB(c)
- B(c);N_GUARD::QAR(C)+P(E)
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