MESON Chess Problem Database
Problem Display
PID: 102470 (6B1/3r4/5p1B/1N3k1K/qb1rb1N1/3PRp2/8/2Q5 w - - 0 1)
Authier, Gabriel
L'Echiquier de Paris, 1951
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...R4d5
- 2.dxe4#
- 1...R4d6
- 2.dxe4#
- 1...Ra7
- 2.Sxd4#
- 1...Rb7
- 2.Sxd4#
- 1...Rc7
- 2.Sxd4#
- 1...Re7
- 2.Sxd4#
- 1...Rf7
- 2.Sxd4#
- 1...Rg7
- 2.Sxd4#
- 1...Rh7
- 2.Sxd4#
- 1...Bxd3
- 2.Be6#
- 1...Bd5
- 2.Sxd4#
- 1...Bc6
- 2.Be6#
- 1...Bb7
- 2.Be6#
- 1...Ba8
- 2.Be6#
- 1...R4d5
- Tries
- 1.Bh7+?
- 1...Rxh7
- 2.Sxd4#
- 1...Ke6!
- 1...Rxh7
- 1.Rxe4?
- threat
- 2.Se3#
- 2.Be6#
- 2.Qf4#
- 1...Rxd3
- 2.Rf4#
- 2.Qf4#
- 1...Bd2
- 2.Be6#
- 1...Qb3
- 2.Se3#
- 2.Qf4#
- 1...Qa2
- 2.Se3#
- 2.Qf4#
- 1...Qa6
- 2.Se3#
- 2.Qf4#
- 1...R4d6
- 2.Se3#
- 2.Rf4#
- 2.Qf4#
- 1...R7d6
- 2.Se3#
- 2.Bh7#
- 2.Qf4#
- 1...Re7
- 2.Se3#
- 2.Sxd4#
- 2.Qf4#
- 1...Rf7
- 2.Se3#
- 2.Sxd4#
- 2.Qf4#
- 1...Bd6
- 2.Se3#
- 2.Be6#
- 1...Rxe4!
- threat
- 1.Qc5+?
- 1...R4d5
- 2.Sd4#
- 2.dxe4#
- 1...R7d5
- 2.Sxd4#
- 2.Sd6#
- 1...Bd5
- 2.Sxd4#
- 2.Be6#
- 1...Bxc5!
- 1...R4d5
- 1.Qc6?
- threat
- 2.Be6#
- 2.Qe6#
- 2.Qxf6#
- 1...Bxc6
- 2.Be6#
- 1...Qb3
- 2.Qxf6#
- 1...Qa2
- 2.Qxf6#
- 1...Qa6
- 2.Be6#
- 1...R4d6
- 2.Qxe4#
- 2.dxe4#
- 1...Re7
- 2.Sxd4#
- 2.Qxf6#
- 1...Rf7
- 2.Sxd4#
- 1...Bd6
- 2.Qxd7#
- 1...Be7
- 2.Be6#
- 2.Bh7#
- 2.Qe6#
- 1...Bd5
- 2.Sxd4#
- 2.Qxf6#
- 1...R7d6!
- threat
- 1.Bh7+?
- Keys
- 1.Qc7!
- threat
- 2.Qf4#
- 1...Rxc7
- 2.Sxd4#
- 1...Bxd3
- 2.Be6#
- 1...Rf7
- 2.Sxd4#
- 1...R4d6
- 2.dxe4#
- 1...R7d6
- 2.Qh7#
- 1...Bd6
- 2.Qxd7#
- 1...Bd5
- 2.Sxd4#
- 1...Bc6
- 2.Be6#
- 1...Bb7
- 2.Be6#
- 1...Ba8
- 2.Be6#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(d);N_GUARD::P(B),XB(e)
- R(h);N_GUARD::S(E),XR(d)
- R(h);N_GUARD,P_PINB(G)::S(E),XR(d)
- B(e);XP(B)::B(H)
- B(e);S_CUTR(h)::S(E),XR(d)
- B(e);::B(H)
- Tries
- Try
- B(H);CHECK
- Vars
- R(h);P_PINB(G),XB(H)::S(E),XR(d)
- Refutation
- K(f);P_SPINB(e),S_FLIGHT
- Try
- R(C);XB(e)
- Threat
- DUALS(3)
- Vars
- B(c);::B(H)
- Refutation
- R(d);XR(C)
- Try
- Q(A);CHECK
- Refutation
- B(c);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- B(e);XQ(A)::B(H)
- Q(b);::QAR1(A),XP(g)
- Q(b);::B(H)
- R(h);N_GUARD::S(E),XR(d)
- B(c);S_CUTR(d)::QAB(A),XR(h)
- Refutation
- R(h);
- Try
- Actual
- Q(A);
- Threat
- QAR1(A)
- Vars
- R(h);N_GUARD,XQ(A)::S(E),XR(d)
- B(e);XP(B)::B(H)
- R(h);N_GUARD::S(E),XR(d)
- R(d);N_GUARD::P(B),XB(e)
- R(h);OGATE::QAB(A)
- B(c);S_CUTR(d)::QAB(A),XR(h)
- B(e);S_CUTR(h)::S(E),XR(d)
- B(e);::B(H)
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