MESON Chess Problem Database
Problem Display
PID: 35617 (6bN/6N1/3p2RK/3nk3/8/5P2/3Q4/8 w - - 0 1)
Knoppel, Jan Heribert
Tidskrift for Schack, 1947
#2
6 + 4
| 3680 | Jan Knoppel Udvalgte Skakproblemer | 1955 |
SOLUTION
- SOUND
- Sets
- 1...Be6
- 2.Rxe6#
- 1...Bf7
- 2.Sxf7#
- 1...Bh7
- 2.Sf7#
- 2.Re6#
- 1...Sc3
- 2.Qxd6#
- 1...Se3
- 2.Qxd6#
- 1...Sb4
- 2.Qxd6#
- 1...Sf4
- 2.Qxd6#
- 1...Sb6
- 2.Qxd6#
- 1...Sf6
- 2.Rg5#
- 1...Sc7
- 2.Qxd6#
- 1...Se7
- 2.Qxd6#
- 1...Be6
- Tries
- 1.Kg5?
- 1...Be6
- 2.Rxe6#
- 1...Bf7
- 2.Sxf7#
- 1...Bh7
- 2.Sf7#
- 2.Re6#
- 1...Sc3
- 2.Qxd6#
- 1...Se3
- 2.Qxd6#
- 1...Sb4
- 2.Qxd6#
- 1...Sf4
- 2.Qxd6#
- 1...Sb6
- 2.Qxd6#
- 1...Sc7
- 2.Qxd6#
- 1...Se7
- 2.Qxd6#
- 1...Sf6!
- 1...Be6
- 1.Rg4?
- threat
- 2.Qg5#
- 2.Qd4#
- 1...Kf6
- 2.Qg5#
- 1...Be6
- 2.Qd4#
- 1...Bh7
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sf4!
- threat
- 1.Rxd6?
- 1...Be6
- 2.Rxe6#
- 1...Bf7
- 2.Sxf7#
- 1...Bh7
- 2.Sf7#
- 2.Re6#
- 1...Sc3
- 2.Sg6#
- 2.Qh2#
- 2.Qd4#
- 1...Se3
- 2.Sg6#
- 2.Qh2#
- 2.Qd4#
- 1...Sb4
- 2.Sg6#
- 2.Qh2#
- 2.Qd4#
- 1...Sf4
- 2.Qd4#
- 1...Sb6
- 2.Sg6#
- 2.Qh2#
- 2.Qd4#
- 1...Sf6
- 2.Sg6#
- 2.Qh2#
- 2.Qd4#
- 1...Sc7
- 2.Sg6#
- 2.Qh2#
- 2.Qd4#
- 1...Se7
- 2.Qh2#
- 2.Qd4#
- 1...Kxd6!
- 1...Be6
- 1.Qc3+?
- 1...Kf4
- 2.Rg4#
- 1...Sxc3!
- 1...Kf4
- 1.Qb4?
- threat
- 2.Qe4#
- 1...Sc3
- 2.Qxd6#
- 1...Sf6
- 2.Rg5#
- 1...Sxb4!
- threat
- 1.Qd3?
- threat
- 2.Qe4#
- 1...Kf4
- 2.Qe4#
- 1...Sc3
- 2.Qxd6#
- 1...Sf6!
- threat
- 1.Kg5?
- Keys
- 1.Rf6!
- threat
- 2.Rf5#
- 1...Kxf6
- 2.Qg5#
- 1...Sxf6
- 2.Sg6#
- 1...Be6
- 2.Rxe6#
- 1...Bh7
- 2.Re6#
- 1...Se3
- 2.Qxd6#
- 1...Se7
- 2.Qxd6#
- threat
- 1.Rf6!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- B(d);N_GUARD::R1(C),XB(d)
- B(d);N_GUARD::S(F),XB(d)
- S(a);OGATE::QAB1(A),XP(c)
- S(a);OGATE,SBLOCK::QAB1(A),XP(c)
- S(a);SBLOCK::R(C)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- B(d);N_GUARD::R1(C),XB(d)
- B(d);N_GUARD::S(F),XB(d)
- S(a);OGATE::QAB1(A),XP(c)
- Refutation
- S(a);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- K(b);S_FLIGHT::QAB1(A)
- B(d);::QAB1(A)
- S(a);::QAB1(A)
- Refutation
- S(a);
- Try
- R(C);XP(c)
- Vars
- B(d);N_GUARD::R1(C),XB(d)
- B(d);N_GUARD::S(F),XB(d)
- S(a);::QAB1(A)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(C)
- Try
- Q(A);CHECK
- Vars
- K(b);S_FLIGHT::R1(C)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- S(a);::QAB1(A),XP(c)
- S(a);SBLOCK::R(C)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- K(b);S_FLIGHT::QAR1(A)
- S(a);OGATE::QAB1(A),XP(c)
- Refutation
- S(a);
- Try
- Actual
- R(C);
- Threat
- R1(C)
- Vars
- K(b);S_FLIGHT,XR(C)::QAB1(A)
- S(a);SBLOCK,XR(C)::S(F)
- B(d);N_GUARD::R1(C),XB(d)
- B(d);N_GUARD::R1(C)
- S(a);OGATE::QAB1(A),XP(c)
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