MESON Chess Problem Database
Problem Display
PID: 180542 (8/7B/2N2b2/1K3P2/2P1k2p/1Q5N/3P2n1/8 w - - 0 1)
Colpa, Johannes J
De Amsterdammer Weekblad voor Nederland, 1901
#2
8 + 4
| 15 | British Chess Magazine | 1910 |
| 5454 | Near Snap | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.f6#
- 1...Bb2
- 2.f6#
- 1...Bd4
- 2.f6#
- 1...Be5
- 2.f6#
- 1...Bg5
- 2.f6#
- 1...Be7
- 2.f6#
- 1...Bg7
- 2.f6#
- 1...Bd8
- 2.f6#
- 1...Bh8
- 2.f6#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Sf2#
- 2.Qe3#
- 1...Ba1
- Tries
- 1.Ka4?
- 1...Se3
- 2.Qxe3#
- 1...Ba1
- 2.f6#
- 1...Bb2
- 2.f6#
- 1...Bd4
- 2.f6#
- 1...Be5
- 2.f6#
- 1...Bg5
- 2.f6#
- 1...Be7
- 2.f6#
- 1...Bg7
- 2.f6#
- 1...Bd8
- 2.f6#
- 1...Bh8
- 2.f6#
- 1...Se1
- 2.Qe3#
- 1...Sf4
- 2.Sf2#
- 2.Qe3#
- 1...Bc3!
- 1...Se3
- 1.Ka6?
- 1...Se3
- 2.Qxe3#
- 1...Ba1
- 2.f6#
- 1...Bb2
- 2.f6#
- 1...Bd4
- 2.f6#
- 1...Be5
- 2.f6#
- 1...Bg5
- 2.f6#
- 1...Be7
- 2.f6#
- 1...Bg7
- 2.f6#
- 1...Bd8
- 2.f6#
- 1...Bh8
- 2.f6#
- 1...Se1
- 2.Qe3#
- 1...Sf4
- 2.Sf2#
- 2.Qe3#
- 1...Bc3!
- 1...Se3
- 1.Bg6?
- 1...Se3
- 2.Qxe3#
- 1...Ba1
- 2.f6#
- 1...Bb2
- 2.f6#
- 1...Bd4
- 2.f6#
- 1...Be5
- 2.f6#
- 1...Bg5
- 2.f6#
- 1...Be7
- 2.f6#
- 1...Bg7
- 2.f6#
- 1...Bd8
- 2.f6#
- 1...Bh8
- 2.f6#
- 1...Se1
- 2.Qe3#
- 1...Sf4
- 2.Sf2#
- 2.Qe3#
- 1...Bc3!
- 1...Se3
- 1.Qa3?
- 1...Se3
- 2.Qxe3#
- 1...Ba1
- 2.f6#
- 1...Bb2
- 2.f6#
- 1...Bd4
- 2.f6#
- 1...Be5
- 2.f6#
- 1...Bg5
- 2.f6#
- 1...Be7
- 2.f6#
- 1...Bg7
- 2.f6#
- 1...Bd8
- 2.f6#
- 1...Bh8
- 2.f6#
- 1...Se1
- 2.Qe3#
- 1...Sf4
- 2.Sf2#
- 2.Qe3#
- 1...Bc3!
- 1...Se3
- 1.Qc3?
- 1...Se3
- 2.Qxe3#
- 1...Bd4
- 2.f6#
- 1...Be5
- 2.f6#
- 1...Bg5
- 2.f6#
- 1...Be7
- 2.f6#
- 1...Bg7
- 2.f6#
- 1...Bd8
- 2.f6#
- 1...Bh8
- 2.f6#
- 1...Se1
- 2.Qe3#
- 1...Sf4
- 2.Sf2#
- 2.Qe3#
- 1...Bxc3!
- 1...Se3
- 1.Qg3?
- threat
- 2.Sf2#
- 2.d3#
- 1...Se3
- 2.Sf2#
- 2.Qxe3#
- 1...Bd4
- 2.Sg5#
- 2.d3#
- 2.f6#
- 1...Se1
- 2.Sf2#
- 2.Qe3#
- 1...Sf4
- 2.Sf2#
- 2.Qe3#
- 1...hxg3!
- threat
- 1.Ka4?
- Keys
- 1.Qd1!
- 1...Kd3
- 2.Sf2#
- 1...Ba1
- 2.f6#
- 1...Bb2
- 2.f6#
- 1...Bc3
- 2.f6#
- 1...Bd4
- 2.f6#
- 1...Be5
- 2.f6#
- 1...Bg5
- 2.f6#
- 1...Be7
- 2.f6#
- 1...Bg7
- 2.f6#
- 1...Bd8
- 2.f6#
- 1...Bh8
- 2.f6#
- 1...Se1
- 2.Qe2#
- 1...Se3
- 2.d3#
- 1...Sf4
- 2.Sf2#
- 1...Kd3
- 1.Qd1!
Anticipated by 5085(1899)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(d);OGATE::B(H)+P(F)
- S(a);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR1(B),XS(a)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- B(d);OGATE::B(H)+P(F)
- S(a);N_GUARD::QAR1(B)
- Refutation
- B(d);
- Try
- K(E);S_FLIGHT
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- B(d);OGATE::B(H)+P(F)
- S(a);N_GUARD::QAR1(B)
- Refutation
- B(d);
- Try
- B(H);
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- B(d);OGATE::B(H)+P(F)
- S(a);N_GUARD::QAR1(B)
- Refutation
- B(d);
- Try
- Q(B);
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- B(d);OGATE::B(H)+P(F)
- S(a);N_GUARD::QAR1(B)
- Refutation
- B(d);
- Try
- Q(B);
- Vars
- S(a);N_GUARD::QAR1(B),XS(a)
- B(d);OGATE::B(H)+P(F)
- S(a);N_GUARD::QAR1(B)
- Refutation
- B(d);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Refutation
- P(c);XQ(B)
- Try
- Actual
- Q(B);
- Vars
- K(b);S_FLIGHT::S(C)
- B(d);OGATE::B(H)+P(F)
- S(a);N_GUARD::QAR2(B)
- S(a);SBLOCK::P(A)
- S(a);SBLOCK::S(C)
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