MESON Chess Problem Database
Problem Display
PID: 61061 (2B1R3/4b3/2N5/r3B2r/4k2p/pQ2NpP1/Kn1P1n2/5R2 w - - 0 1)
Haring, Jacobus
2nd Prize, SEPA, 1972
#2
10 + 9
| 3753 | FIDE Album (1971-1973) | 1978 |
| 133 | The Problemist Supplement | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Ra6
- 2.Qd5#
- 1...Ra7
- 2.Qd5#
- 1...Ra8
- 2.Qd5#
- 1...Rf5
- 2.Bxf5#
- 1...Rh6
- 2.Bf5#
- 1...Rh7
- 2.Bf5#
- 1...Rh8
- 2.Bf5#
- 1...Bc5
- 2.Qd5#
- 1...Bg5
- 2.Bf5#
- 1...Sbd1
- 2.Qc4#
- 1...Sbd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Ra4
- Tries
- 1.Sd1?
- threat
- 2.Sxf2#
- 2.Re1#
- 1...Sbxd1
- 2.Qc4#
- 1...Sfxd1
- 2.Qxf3#
- 1...hxg3
- 2.Re1#
- 1...Sc4
- 2.Qxc4#
- 1...Bg5
- 2.Sxf2#
- 1...Sbd3
- 2.Sc3#
- 2.Qc4#
- 1...Sh1
- 2.Re1#
- 2.Qxf3#
- 1...Sfd3
- 2.Sc3#
- 1...Sh3
- 2.Re1#
- 2.Qxf3#
- 1...Sg4
- 2.Qxf3#
- 1...Bc5!
- threat
- 1.Sg4?
- threat
- 2.Sxf2#
- 2.Re1#
- 1...Sxg4
- 2.Qxf3#
- 1...hxg3
- 2.Re1#
- 1...Sc4
- 2.Qxc4#
- 1...Bc5
- 2.Sf6#
- 1...Bg5
- 2.Sxf2#
- 1...Sbd1
- 2.Qc4#
- 1...Sbd3
- 2.Qc4#
- 1...Sfd1
- 2.Qxf3#
- 1...Sh1
- 2.Re1#
- 2.Qxf3#
- 1...Sh3
- 2.Re1#
- 2.Qxf3#
- 1...Sfd3!
- threat
- 1.Sf5?
- threat
- 2.Re1#
- 1...Sc4
- 2.Qxc4#
- 1...Bc5
- 2.Bd6#
- 1...Bg5
- 2.Sd6#
- 1...Sbd1
- 2.Qc4#
- 1...Sbd3
- 2.Qc4#
- 1...Sfd1
- 2.Qxf3#
- 1...Sg4
- 2.Qxf3#
- 1...Sfd3!
- threat
- 1.Re1?
- threat
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sg4#
- 2.Sd5#
- 2.Sf5#
- 1...Rd5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sxd5#
- 2.Sf5#
- 2.Qxd5#
- 1...Rf5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sg4#
- 2.Sd5#
- 2.Sxf5#
- 2.Bxf5#
- 1...Bc5
- 2.Qd5#
- 1...Bg5
- 2.Bf5#
- 1...Sbd1
- 2.Sxd1#
- 2.Qc4#
- 1...Sbd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sfd1
- 2.Sxd1#
- 1...Sg4
- 2.Sxg4#
- 1...Sfd3!
- threat
- 1.Qc2+?
- 1...Sbd3
- 2.Qc4#
- 1...Sfd3!
- 1...Sbd3
- 1.Sd1?
- Keys
- 1.Sd5!
- threat
- 2.Re1#
- 1...Sc4
- 2.Qxc4#
- 1...Bc5
- 2.Sf6#
- 1...Bg5
- 2.Bf6#
- 1...Sbd1
- 2.Qc4#
- 1...Sbd3
- 2.Sc3#
- 2.Qc4#
- 1...Sfd1
- 2.Qxf3#
- 1...Sfd3
- 2.Sc3#
- 1...Sg4
- 2.Qxf3#
- threat
- 1.Sd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- R(g);N_GUARD::QAB1(D)
- R(g);N_GUARD::QAB1(D),XR(g)
- R(h);N_GUARD::B(I),XR(h)
- R(h);N_GUARD::B(I)
- B(i);S_CUTR(g)::QAB1(D)
- B(i);S_CUTR(h)::B(I)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD,XS(E)::QAR2(D)
- S(b);XS(E)::QAB1(D),XP(d)
- P(f);XP(F)::R(A)
- S(a);N_GUARD::QAR2(D),XS(a)
- B(i);::S(E),XS(b)
- S(b);SBLOCK::S(E)
- S(b);::QAB1(D),XP(d)
- Refutation
- B(i);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(b);XS(E)::QAB1(D),XP(d)
- P(f);XP(F)::R(A)
- S(a);N_GUARD::QAR2(D),XS(a)
- B(i);N_GUARD::S(E)
- B(i);::S(E),XS(b)
- S(a);N_GUARD::QAR2(D)
- S(b);::QAB1(D),XP(d)
- Refutation
- S(b);
- Try
- S(E);
- Threat
- R(A)
- Vars
- S(a);N_GUARD::QAR2(D),XS(a)
- B(i);OGATEB::R(J)+B(G)
- B(i);N_GUARD::S(E)
- S(a);N_GUARD::QAR2(D)
- S(b);::QAB1(D),XP(d)
- Refutation
- S(b);
- Try
- R(A);
- Threat
- DUALS(7)
- Vars
- B(i);S_CUTR(g)::QAB1(D)
- B(i);S_CUTR(h)::B(I)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(b);::R(A)+S(E),XS(b)
- Refutation
- S(b);
- Try
- Q(D);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR2(D)
- Refutation
- S(b);P_SPINS(b)
- Try
- Actual
- S(E);
- Threat
- R(A)
- Vars
- S(a);N_GUARD::QAR2(D),XS(a)
- B(i);N_GUARD::S(E)
- B(i);OGATEB::R(J)+B(G)
- S(a);N_GUARD::QAR2(D)
- S(b);::QAB1(D),XP(d)
- S(b);SBLOCK::S(E)
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