MESON Chess Problem Database
Problem Display
PID: 214924 (1Q1BKN1n/p2PNpb1/2P3p1/R2p1pR1/3k4/1b1P1r2/3P1p2/5B2 w - - 0 1)
Lansquenet, Alfred
Prize, La Strategie, 1878
#2
12 + 11
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxd3
- 2.Qf4#
- 1...Rg3
- 2.Qf4#
- 1...Rh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Bd1
- 2.Rxd5#
- 2.Qb2#
- 1...Ba2
- 2.Qb2#
- 1...Bc2
- 2.Rxd5#
- 2.Qb2#
- 1...Ba4
- 2.Rxd5#
- 2.Qb2#
- 1...Bc4
- 2.Qb2#
- 1...Be5
- 2.Qxa7#
- 1...f4
- 2.Qxa7#
- 1...a6
- 2.Bb6#
- 1...f6
- 2.Se6#
- 1...Rxd3
- Tries
- 1.Sc8?
- 1...Rxd3
- 2.Qf4#
- 1...Bxf8
- 2.Bf6#
- 1...Rg3
- 2.Qf4#
- 1...Rh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Bd1
- 2.Qb2#
- 1...Ba2
- 2.Qb2#
- 1...Bc2
- 2.Qb2#
- 1...Ba4
- 2.Qb2#
- 1...Bc4
- 2.Qb2#
- 1...Be5
- 2.Qxa7#
- 1...Bf6
- 2.Bxf6#
- 1...Bh6
- 2.Bf6#
- 1...f4
- 2.Qxa7#
- 1...a6
- 2.Bb6#
- 1...f6
- 2.Se6#
- 1...Re3+!
- 1...Rxd3
- 1.Sg8?
- 1...Rxd3
- 2.Qf4#
- 1...Bxf8
- 2.Bf6#
- 1...Rg3
- 2.Qf4#
- 1...Rh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Bd1
- 2.Qb2#
- 1...Ba2
- 2.Qb2#
- 1...Bc2
- 2.Qb2#
- 1...Ba4
- 2.Qb2#
- 1...Bc4
- 2.Qb2#
- 1...Be5
- 2.Qxa7#
- 1...Bf6
- 2.Bxf6#
- 1...Bh6
- 2.Bf6#
- 1...f4
- 2.Qxa7#
- 1...a6
- 2.Bb6#
- 1...f6
- 2.Se6#
- 1...Re3+!
- 1...Rxd3
- 1.Bc7?
- threat
- 2.Qxa7#
- 1...a6
- 2.Bb6#
- 2.Qa7#
- 2.Qb6#
- 1...Rxd3!
- threat
- 1.Qxb3?
- threat
- 2.Rxd5#
- 2.Qxd5#
- 2.Qb2#
- 2.Qc3#
- 1...Rxd3
- 2.Qxd5#
- 1...Ke5!
- threat
- 1.Qb4+?
- 1...Bc4
- 2.Rxd5#
- 2.Qc3#
- 2.Qb2#
- 1...Ke5!
- 1...Bc4
- 1.Sc8?
- Keys
- 1.Sxd5!
- 1...Re3+
- 2.dxe3#
- 1...Rxd3
- 2.Qf4#
- 1...Bxd5
- 2.Qb2#
- 1...Bxf8
- 2.Bf6#
- 1...Rg3
- 2.Qf4#
- 1...Rh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Bd1
- 2.Qb2#
- 1...Ba2
- 2.Qb2#
- 1...Bc2
- 2.Qb2#
- 1...Ba4
- 2.Qb2#
- 1...Bc4
- 2.Qb2#
- 1...Be5
- 2.Qxa7#
- 1...Bf6
- 2.Bxf6#
- 1...Bh6
- 2.Bf6#
- 1...f4
- 2.Qxa7#
- 1...a6
- 2.Bb6#
- 1...f6
- 2.Se6#
- 1...Re3+
- 1.Sxd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD,XP(C)::QAR2(I)
- R(c);N_GUARD::QAR2(I)
- R(c);N_GUARD::QAR2(I),XR(c)
- B(b);OGATE::QAB(I)
- B(j);SBLOCK::QAB(I),XP(h)
- P(f);::QAB(I),XP(h)
- P(h);N_GUARD::B(J)
- P(i);N_GUARD::S(L)
- Tries
- Try
- S(H);
- Vars
- R(c);N_GUARD,XP(C)::QAR2(I)
- B(j);N_GUARD,XS(L)::B(J)
- R(c);N_GUARD::QAR2(I)
- R(c);N_GUARD::QAR2(I),XR(c)
- B(b);OGATE::QAB(I)
- B(j);SBLOCK::QAB(I),XP(h)
- B(j);N_GUARD::B(J),XB(j)
- B(j);N_GUARD::B(J)
- P(f);::QAB(I),XP(h)
- P(h);N_GUARD::B(J)
- P(i);N_GUARD::S(L)
- Refutation
- R(c);CHECK
- Try
- S(H);
- Vars
- R(c);N_GUARD,XP(C)::QAR2(I)
- B(j);N_GUARD,XS(L)::B(J)
- R(c);N_GUARD::QAR2(I)
- R(c);N_GUARD::QAR2(I),XR(c)
- B(b);OGATE::QAB(I)
- B(j);SBLOCK::QAB(I),XP(h)
- B(j);N_GUARD::B(J),XB(j)
- B(j);N_GUARD::B(J)
- P(f);::QAB(I),XP(h)
- P(h);N_GUARD::B(J)
- P(i);N_GUARD::S(L)
- Refutation
- R(c);CHECK
- Try
- B(J);
- Threat
- QAB(I),XP(h)
- Refutation
- R(c);XP(C)
- Try
- Q(I);XB(b)
- Threat
- DUALS(4)
- Vars
- R(c);XP(C)::QAR1(I),XP(e)
- Refutation
- K(d);P_SPINP(e),S_FLIGHT
- Try
- Q(I);CHECK
- Refutation
- K(d);P_SPINP(e),S_FLIGHT
- Try
- Actual
- S(H);XP(e)
- Vars
- R(c);CHECK,OGATE::P(B),XR(c)
- R(c);N_GUARD,XP(C)::QAR2(I)
- B(b);OGATE,XS(H)::QAB(I)
- B(j);N_GUARD,XS(L)::B(J)
- R(c);N_GUARD::QAR2(I)
- R(c);N_GUARD::QAR2(I),XR(c)
- B(b);OGATE::QAB(I)
- B(j);SBLOCK::QAB(I),XP(h)
- B(j);N_GUARD::B(J),XB(j)
- B(j);N_GUARD::B(J)
- P(f);::QAB(I),XP(h)
- P(h);N_GUARD::B(J)
- P(i);N_GUARD::S(L)
Developed and maintained by Brian Stephenson.
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