MESON Chess Problem Database
Problem Display
PID: 78489 (8/2Q5/4P1p1/1N1p4/8/1Kbk2N1/5P2/3nB3 w - - 0 1)
Hartong, Jan
Grantham Journal, 1929
#2
7 + 5
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Qc2#
- 1...Bxe1
- 2.Qc2#
- 1...Bb2
- 2.Qc2#
- 1...Bd2
- 2.Qc2#
- 1...Bb4
- 2.Qc2#
- 1...Bd4
- 2.Qc2#
- 1...Ba5
- 2.Qc2#
- 1...Be5
- 2.Qc2#
- 1...Bf6
- 2.Qc2#
- 1...Bg7
- 2.Qc2#
- 1...Bh8
- 2.Qc2#
- 1...Sb2
- 2.Qxc3#
- 1...Sxf2
- 2.Qxc3#
- 1...Se3
- 2.Qxc3#
- 1...d4
- 2.Qc4#
- 1...g5
- 2.Qh7#
- 1...Ba1
- Tries
- 1.Qe5?
- threat
- 2.Qe2#
- 1...Se3
- 2.Qxc3#
- 2.Qxe3#
- 1...Bxe5!
- threat
- 1.Qc5?
- 1...Bxe1
- 2.Qd4#
- 2.Qc2#
- 2.Qxd5#
- 1...Sxf2
- 2.Qxc3#
- 1...Ba1
- 2.Qc2#
- 1...Bb2
- 2.Qc2#
- 1...Bd2
- 2.Qd4#
- 2.Qc2#
- 2.Qxd5#
- 1...Bb4
- 2.Qd4#
- 2.Qc2#
- 2.Qxd5#
- 1...Bd4
- 2.Qxd4#
- 2.Qc2#
- 1...Ba5
- 2.Qd4#
- 2.Qc2#
- 2.Qxd5#
- 1...Be5
- 2.Qc2#
- 1...Bf6
- 2.Qc2#
- 1...Bg7
- 2.Qc2#
- 1...Bh8
- 2.Qc2#
- 1...Sb2
- 2.Qe3#
- 2.Qxc3#
- 1...Se3
- 2.Qxe3#
- 2.Qxc3#
- 1...d4
- 2.Qc4#
- 1...g5!
- 1...Bxe1
- 1.Qc6?
- 1...Bxe1
- 2.Qxd5#
- 2.Qc2#
- 1...Sxf2
- 2.Qxc3#
- 1...Ba1
- 2.Qc2#
- 1...Bb2
- 2.Qc2#
- 1...Bd2
- 2.Qxd5#
- 2.Qc2#
- 1...Bb4
- 2.Qxd5#
- 2.Qc2#
- 1...Bd4
- 2.Qc2#
- 1...Ba5
- 2.Qxd5#
- 2.Qc2#
- 1...Be5
- 2.Qc2#
- 1...Bf6
- 2.Qc2#
- 1...Bg7
- 2.Qc2#
- 1...Bh8
- 2.Qc2#
- 1...Sb2
- 2.Qxc3#
- 1...Se3
- 2.Qxc3#
- 1...d4
- 2.Qe4#
- 2.Qc4#
- 1...g5!
- 1...Bxe1
- 1.Qg7?
- threat
- 2.Qxg6#
- 1...Bxe1
- 2.Qd4#
- 1...Sxf2
- 2.Qxc3#
- 1...Se3
- 2.Qxc3#
- 1...g5
- 2.Qg6#
- 2.Qh7#
- 1...Bxg7!
- threat
- 1.Qc8?
- 1...Bxe1
- 2.Qc2#
- 1...Sxf2
- 2.Qxc3#
- 1...Ba1
- 2.Qc2#
- 1...Bb2
- 2.Qc2#
- 1...Bd2
- 2.Qc2#
- 1...Bb4
- 2.Qc2#
- 1...Bd4
- 2.Qc2#
- 1...Ba5
- 2.Qc2#
- 1...Be5
- 2.Qc2#
- 1...Bf6
- 2.Qc2#
- 1...Bg7
- 2.Qc2#
- 1...Bh8
- 2.Qc2#
- 1...Sb2
- 2.Qxc3#
- 1...Se3
- 2.Qxc3#
- 1...d4
- 2.Qc4#
- 1...g5!
- 1...Bxe1
- 1.e7?
- 1...Bxe1
- 2.Qc2#
- 1...Sxf2
- 2.Qxc3#
- 1...Ba1
- 2.Qc2#
- 1...Bb2
- 2.Qc2#
- 1...Bd2
- 2.Qc2#
- 1...Bb4
- 2.Qc2#
- 1...Bd4
- 2.Qc2#
- 1...Ba5
- 2.Qc2#
- 1...Be5
- 2.Qc2#
- 1...Bf6
- 2.Qc2#
- 1...Bg7
- 2.Qc2#
- 1...Bh8
- 2.Qc2#
- 1...Sb2
- 2.Qxc3#
- 1...Se3
- 2.Qxc3#
- 1...d4
- 2.Qc4#
- 1...g5!
- 1...Bxe1
- 1.Qe5?
- Keys
- 1.Qf4!
- 1...Bxe1
- 2.Qd4#
- 1...Sxf2
- 2.Qf3#
- 1...Ba1
- 2.Qd2#
- 1...Bb2
- 2.Qd2#
- 1...Bd2
- 2.Qxd2#
- 2.Qd4#
- 1...Bb4
- 2.Qd4#
- 1...Bd4
- 2.Qd2#
- 2.Qxd4#
- 1...Ba5
- 2.Qd4#
- 1...Be5
- 2.Qd2#
- 1...Bf6
- 2.Qd2#
- 1...Bg7
- 2.Qd2#
- 1...Bh8
- 2.Qd2#
- 1...Sb2
- 2.Qe3#
- 2.Qf3#
- 1...Se3
- 2.Qxe3#
- 1...d4
- 2.Qe4#
- 1...g5
- 2.Qf5#
- 1...Bxe1
- 1.Qf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 13
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- B(b);OGATE::QAB1(G)
- B(b);OGATE,XB(A)::QAB1(G)
- S(a);N_GUARD::QAR1(G),XB(b)
- S(a);N_GUARD,XP(B)::QAR1(G),XB(b)
- P(d);N_GUARD::QAB1(G)
- P(e);OGATEB::QAB(G)
- Tries
- Try
- Q(G);
- Threat
- QAB1(G)
- Refutation
- B(b);XQ(G)
- Try
- Q(G);
- Vars
- S(a);N_GUARD,XP(B)::QAR1(G),XB(b)
- B(b);OGATE::QAB1(G)
- P(d);N_GUARD::QAB1(G)
- Refutation
- P(e);
- Try
- Q(G);
- Vars
- S(a);N_GUARD,XP(B)::QAR1(G),XB(b)
- B(b);OGATE::QAB1(G)
- S(a);N_GUARD::QAR1(G),XB(b)
- Refutation
- P(e);
- Try
- Q(G);
- Threat
- QAB(G),XP(e)
- Vars
- B(b);N_GUARD,XB(A)::QAR1(G)
- S(a);N_GUARD,XP(B)::QAR1(G),XB(b)
- S(a);N_GUARD::QAR1(G),XB(b)
- Refutation
- B(b);XQ(G)
- Try
- Q(G);
- Vars
- B(b);OGATE,XB(A)::QAB1(G)
- S(a);N_GUARD,XP(B)::QAR1(G),XB(b)
- B(b);OGATE::QAB1(G)
- S(a);N_GUARD::QAR1(G),XB(b)
- P(d);N_GUARD::QAB1(G)
- Refutation
- P(e);
- Try
- P(F);
- Vars
- B(b);OGATE,XB(A)::QAB1(G)
- S(a);N_GUARD,XP(B)::QAR1(G),XB(b)
- B(b);OGATE::QAB1(G)
- S(a);N_GUARD::QAR1(G),XB(b)
- P(d);N_GUARD::QAB1(G)
- Refutation
- P(e);
- Try
- Actual
- Q(G);
- Vars
- B(b);N_GUARD,XB(A)::QAR1(G)
- S(a);N_GUARD,XP(B)::QAR2(G)
- B(b);N_GUARD::QAR1(G)
- S(a);N_GUARD::QAR1(G),XS(a)
- P(d);N_GUARD::QAB1(G)
- P(e);N_GUARD::QAB(G)
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