MESON Chess Problem Database
Problem Display
PID: 185046 (8/8/3R4/4p3/3PkpPb/p2p3N/B3P1N1/K4R2 w - - 0 1)
Andrade, Barry Jack da Costa
The Observer, 1930
(First published on Sun Feb 23 1930)
#2
9 + 6
| 1189 | The Tablet | 1958 |
| 5454 | Near Snap | 2018 |
| 15239 | Valois Notebooks | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Sg5#
- 1...Bf2
- 2.Sxf2#
- 2.Sg5#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sf2#
- 2.Sxg5#
- 1...Bf6
- 2.Sf2#
- 1...Be7
- 2.Sf2#
- 1...Bd8
- 2.Sf2#
- 1...dxe2
- 2.Bb1#
- 1...d2
- 2.Bb1#
- 1...f3
- 2.exf3#
- 1...exd4
- 2.Re6#
- 1...Be1
- Tries
- 1.Shxf4?
- threat
- 2.exd3#
- 1...dxe2
- 2.Bb1#
- 1...exd4
- 2.Re6#
- 1...exf4
- 2.Rxf4#
- 1...d2
- 2.Bb1#
- 1...Bf2!
- threat
- 1.Bb1?
- threat
- 2.Bxd3#
- 2.exd3#
- 1...Bf2
- 2.Sxf2#
- 2.Sg5#
- 2.Bxd3#
- 1...exd4!
- threat
- 1.Bb3?
- 1...dxe2
- 2.Bc2#
- 1...exd4
- 2.Re6#
- 1...Bf2
- 2.Sxf2#
- 2.Sg5#
- 1...Be1
- 2.Sg5#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sf2#
- 2.Sxg5#
- 1...Bf6
- 2.Sf2#
- 1...Be7
- 2.Sf2#
- 1...Bd8
- 2.Sf2#
- 1...d2
- 2.Bc2#
- 1...f3
- 2.exf3#
- 1...a2!
- 1...dxe2
- 1.Bc4?
- threat
- 2.Bxd3#
- 2.exd3#
- 1...exd4
- 2.Re6#
- 1...Bf2
- 2.Sxf2#
- 2.Sg5#
- 2.Bxd3#
- 1...d2
- 2.Bd3#
- 1...dxe2!
- threat
- 1.Rf3?
- 1...exd4
- 2.Re6#
- 1...Be1
- 2.Sg5#
- 1...Bf2
- 2.Sxf2#
- 2.Sg5#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sf2#
- 2.Sxg5#
- 1...Bf6
- 2.Sf2#
- 1...Be7
- 2.Sf2#
- 1...Bd8
- 2.Sf2#
- 1...d2
- 2.Bb1#
- 1...dxe2!
- 1...exd4
- 1.Rd7?
- 1...dxe2
- 2.Bb1#
- 1...f3
- 2.exf3#
- 1...Be1
- 2.Sg5#
- 1...Bf2
- 2.Sxf2#
- 2.Sg5#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sf2#
- 2.Sxg5#
- 1...Bf6
- 2.Sf2#
- 1...Be7
- 2.Sf2#
- 1...Bd8
- 2.Sf2#
- 1...d2
- 2.Bb1#
- 1...exd4!
- 1...dxe2
- 1.e3?
- threat
- 2.Bd5#
- 1...exd4
- 2.Re6#
- 1...d2
- 2.Bb1#
- 1...fxe3!
- threat
- 1.Shxf4?
- Keys
- 1.Rd1!
- 1...dxe2
- 2.Bd5#
- 1...exd4
- 2.Re6#
- 1...d2
- 2.Bb1#
- 1...Be1
- 2.Sg5#
- 1...Bf2
- 2.Sxf2#
- 2.Sg5#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sf2#
- 2.Sxg5#
- 1...Bf6
- 2.Sf2#
- 1...Be7
- 2.Sf2#
- 1...Bd8
- 2.Sf2#
- 1...f3
- 2.exd3#
- 1...dxe2
- 1.Rd1!
Anticipated by 99974(1924)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD::S(F)
- P(b);OGATEB,XP(D)::B(C)
- P(b);OGATEB::B(C)
- P(d);OGATE::P(D),XP(d)
- P(f);OGATEB,SBLOCK,XP(G)::R(I)
- Tries
- Try
- S(F);XP(d)
- Threat
- P(D),XP(b)
- Vars
- P(b);OGATEB,XP(D)::B(C)
- P(f);OGATEB,SBLOCK,XP(G)::R(I)
- P(f);OGATE,XS(F)::R1(B),XP(f)
- P(b);OGATEB::B(C)
- Refutation
- B(e);
- Try
- B(C);P_PINP(b)
- Threat
- DUALS(2)
- Refutation
- P(f);XP(G)
- Try
- B(C);
- Vars
- P(b);OGATEB,XP(D)::B(C)
- P(f);OGATEB,SBLOCK,XP(G)::R(I)
- B(e);N_GUARD::S(F)
- P(b);OGATEB::B(C)
- P(d);OGATE::P(D),XP(d)
- Refutation
- P(a);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- P(f);OGATEB,SBLOCK,XP(G)::R(I)
- P(b);::B(C)
- Refutation
- P(b);XP(D)
- Try
- R(B);
- Vars
- P(f);OGATEB,SBLOCK,XP(G)::R(I)
- B(e);N_GUARD::S(F)
- P(b);OGATEB::B(C)
- Refutation
- P(b);XP(D)
- Try
- R(I);
- Vars
- P(b);OGATEB,XP(D)::B(C)
- P(d);OGATE::P(D),XP(d)
- B(e);N_GUARD::S(F)
- P(b);OGATEB::B(C)
- Refutation
- P(f);XP(G)
- Try
- P(D);
- Threat
- B(C)
- Vars
- P(f);OGATEB,XP(G)::R(I)
- P(b);OGATEB::B(C)
- Refutation
- P(d);XP(D)
- Try
- Actual
- R(B);
- Vars
- P(b);XP(D)::B(C)
- P(f);OGATEB,SBLOCK,XP(G)::R(I)
- P(b);OGATEB::B(C)
- B(e);N_GUARD::S(F)
- P(d);SBLOCK::P(D),XP(b)
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