MESON Chess Problem Database
Problem Display
PID: 58599 (1N4bK/1R1r2rp/QN6/1pk1B3/1p6/8/8/7B w - - 0 1)
Haring, Jacobus
Het Belgisch Schaakbord (L'Echiquier Belge), 1955
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.S8xd7#
- 1...Rg3
- 2.S8xd7#
- 1...Rg4
- 2.S8xd7#
- 1...Rg5
- 2.S8xd7#
- 1...Rg6
- 2.S8xd7#
- 1...Bf7
- 2.S8xd7#
- 1...Rg1
- Tries
- 1.Sa4+?
- 1...bxa4
- 2.Qb5#
- 2.Qc6#
- 1...Kc4!
- 1...bxa4
- 1.Sc4?
- threat
- 2.Qxb5#
- 2.Qc6#
- 1...Rxb7
- 2.Qc6#
- 1...Bxc4
- 2.Qb6#
- 2.Qc6#
- 2.Qa7#
- 1...bxc4
- 2.Rb5#
- 2.Qb5#
- 2.Qa5#
- 2.Qb6#
- 2.Qc6#
- 2.Qa7#
- 1...b3
- 2.Qxb5#
- 1...Rd6
- 2.Qxb5#
- 1...Rc7
- 2.Qxb5#
- 1...Rg6
- 2.Qxb5#
- 1...Bd5
- 2.Qxb5#
- 1...Kxc4!
- threat
- 1.Sd5?
- threat
- 2.Qxb5#
- 2.Qc6#
- 1...Rxb7
- 2.Qc6#
- 1...Bxd5
- 2.Qxb5#
- 1...Rd6
- 2.Qxb5#
- 1...Rc7
- 2.Qxb5#
- 1...Rg6
- 2.Qxb5#
- 1...Kc4!
- threat
- 1.S6xd7+?
- 1...Rxd7
- 2.Qxb5#
- 2.Qc6#
- 1...Kc4!
- 1...Rxd7
- 1.Sa8?
- threat
- 2.Qxb5#
- 2.Qc6#
- 1...Rxb7
- 2.Qc6#
- 1...b3
- 2.Qxb5#
- 1...Rd6
- 2.Qxb5#
- 1...Rc7
- 2.Qxb5#
- 1...Rg6
- 2.Qxb5#
- 1...Bc4
- 2.Qb6#
- 2.Qc6#
- 2.Qa7#
- 1...Bd5
- 2.Qxb5#
- 1...Kc4!
- threat
- 1.Sc8?
- threat
- 2.Qxb5#
- 2.Qc6#
- 1...Rxb7
- 2.Qc6#
- 1...b3
- 2.Qxb5#
- 1...Rd6
- 2.Qxb5#
- 1...Rc7
- 2.Qxb5#
- 1...Rg6
- 2.Qxb5#
- 1...Bc4
- 2.Qb6#
- 2.Qc6#
- 2.Qa7#
- 1...Bd5
- 2.Qxb5#
- 1...Kc4!
- threat
- 1.Rxd7?
- threat
- 2.Bd4#
- 1...Rxd7
- 2.S8xd7#
- 1...Rg4
- 2.Rc7#
- 1...Bd5
- 2.Rxd5#
- 1...b3!
- threat
- 1.Qa1?
- threat
- 2.Sa6#
- 1...Rxb7
- 2.Qd4#
- 1...Rd5
- 2.Qc1#
- 1...Bd5
- 2.Qd4#
- 1...Rg2!
- threat
- 1.Qa3?
- threat
- 2.Sa6#
- 1...Rxb7
- 2.Qe3#
- 1...Rd5
- 2.Qc1#
- 1...Bd5
- 2.Qe3#
- 1...Rg2!
- threat
- 1.Sa4+?
- Keys
- 1.Qa2!
- threat
- 2.Sa6#
- 1...Rxb7
- 2.Qf2#
- 1...Rd5
- 2.Qc2#
- 1...Rg2
- 2.S6xd7#
- 1...Bd5
- 2.Qf2#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- R(e);N_GUARD::S(F),XR(d)
- B(g);S_CUTR(e)::S(F),XR(d)
- Tries
- Try
- S(D);CHECK
- Refutation
- K(c);P-FLIGHT,P_SPINP(b)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::QAR1(C)
- P(a);::QAR1(C),XP(b)
- R(d);::QAR1(C),XP(b)
- R(e);::QAR1(C),XP(b)
- B(g);::QAR1(C),XP(b)
- Refutation
- K(c);P-FLIGHT,P_SPINP(b),XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::QAR1(C)
- B(g);XS(D)::QAR1(C),XP(b)
- R(d);::QAR1(C),XP(b)
- R(e);::QAR1(C),XP(b)
- Refutation
- K(c);P-FLIGHT,P_SPINP(b)
- Try
- S(D);CHECK,XR(d)
- Refutation
- K(c);P-FLIGHT,P_SPINP(b)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::QAR1(C)
- P(a);::QAR1(C),XP(b)
- R(d);::QAR1(C),XP(b)
- R(e);::QAR1(C),XP(b)
- B(g);::QAR1(C),XP(b)
- Refutation
- K(c);P-FLIGHT,P_SPINP(b)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::QAR1(C)
- P(a);::QAR1(C),XP(b)
- R(d);::QAR1(C),XP(b)
- R(e);::QAR1(C),XP(b)
- B(g);::QAR1(C),XP(b)
- Refutation
- K(c);P-FLIGHT,P_SPINP(b)
- Try
- R(E);XR(d)
- Threat
- B(B)
- Vars
- R(e);XR(E)::S(F),XR(e)
- R(e);N_GUARD::R(E)
- B(g);N_GUARD::R1(E),XB(g)
- Refutation
- P(a);
- Try
- Q(C);
- Threat
- S(F)
- Vars
- R(d);N_GUARD,XR(E)::QAB1(C)
- R(d);S_CUTB(g)::QAR(C)
- B(g);S_CUTR(d)::QAB1(C)
- Refutation
- R(e);
- Try
- Q(C);P_PINP(a)
- Threat
- S(F)
- Vars
- R(d);N_GUARD,XR(E)::QAB(C)
- R(d);S_CUTB(g)::QAR(C)
- B(g);S_CUTR(d)::QAB(C)
- Refutation
- R(e);
- Try
- Actual
- Q(C);
- Threat
- S(F)
- Vars
- R(d);N_GUARD,XR(E)::QAB(C)
- R(d);S_CUTB(g)::QAR(C)
- R(e);N_GUARD::S(D),XR(d)
- B(g);S_CUTR(d)::QAB(C)
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