MESON Chess Problem Database
Problem Display
PID: 262475 (4R3/1p1P4/nKp2p2/Q2N2Br/3k4/1P4nr/2b4q/2N2Bb1 w - - 0 1)
Haring, Jacobus
Europe Echecs, 1970
#2
9 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rh4
- 2.Bxf6#
- 1...Rh7
- 2.Bxf6#
- 1...Rh8
- 2.Bxf6#
- 1...Be3
- 2.Bxe3#
- 1...Bxb3
- 2.Sxb3#
- 1...Bf5
- 2.Bxf6#
- 1...Sb4
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...cxd5
- 2.Qa1#
- 1...f5
- 2.Bf6#
- 1...Rh4
- Tries
- 1.Se3?
- threat
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Rxg5
- 2.Qa1#
- 1...Bxe3
- 2.Bxe3#
- 2.d8Q#
- 2.d8R#
- 1...Bxb3
- 2.Sxb3#
- 1...Sxf1
- 2.Qa1#
- 1...fxg5
- 2.Qa1#
- 2.Qe5#
- 2.d8Q#
- 2.d8R#
- 1...Sb4
- 2.Qxb4#
- 2.Qa1#
- 2.Qc5#
- 1...Qh1
- 2.Sxc2#
- 2.Qa1#
- 1...Qd2
- 2.d8Q#
- 2.d8R#
- 1...Qe2
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Qf2
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Qg2
- 2.Qa1#
- 1...R3h4
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...R5h4
- 2.Bxf6#
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Rh6
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Rh7
- 2.Bxf6#
- 2.Qa1#
- 1...Rh8
- 2.Bxf6#
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Bf2
- 2.Sxc2#
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Bb1
- 2.d8Q#
- 2.d8R#
- 1...Bd1
- 2.d8Q#
- 2.d8R#
- 1...Bd3
- 2.d8Q#
- 2.d8R#
- 1...Bf5
- 2.Bxf6#
- 1...Bg6
- 2.d8Q#
- 2.d8R#
- 1...Bh7
- 2.d8Q#
- 2.d8R#
- 1...Sh1
- 2.Qa1#
- 1...Se2
- 2.Sxc2#
- 1...Se4
- 2.Sf5#
- 1...Sf5
- 2.Qa1#
- 1...Sc5
- 2.Qb4#
- 2.Qa1#
- 2.Qxc5#
- 1...Sc7
- 2.Qb4#
- 2.Qa1#
- 2.Qc5#
- 1...Sb8
- 2.Qb4#
- 2.Qa1#
- 2.Qc5#
- 1...c5
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...f5
- 2.Bf6#
- 2.Qa1#
- 2.Qe5#
- 2.d8Q#
- 2.d8R#
- 1...Be4!
- threat
- 1.Bxa6?
- threat
- 2.Qc5#
- 1...c5
- 2.Qxc5#
- 1...Se4!
- threat
- 1.Qd2+?
- 1...Bd3
- 2.Qxd3#
- 1...Qxd2!
- 1...Bd3
- 1.Se3?
- Keys
- 1.Sf4!
- threat
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Rxg5
- 2.Qa1#
- 1...Bxb3
- 2.Sxb3#
- 1...Sxf1
- 2.d8Q#
- 2.d8R#
- 1...fxg5
- 2.Qa1#
- 2.Qe5#
- 2.d8Q#
- 2.d8R#
- 1...Be4
- 2.Se6#
- 1...Se4
- 2.Se6#
- 1...Sb4
- 2.Qxb4#
- 2.Qa1#
- 2.Qc5#
- 1...Qh1
- 2.Qa1#
- 1...Qd2
- 2.d8Q#
- 2.d8R#
- 1...Qe2
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Qf2
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Qg2
- 2.Qa1#
- 1...R3h4
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...R5h4
- 2.Bxf6#
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Rh6
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Rh7
- 2.Bxf6#
- 2.Qa1#
- 1...Rh8
- 2.Bxf6#
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Bf2
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Be3
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...Bb1
- 2.d8Q#
- 2.d8R#
- 1...Bd1
- 2.d8Q#
- 2.d8R#
- 1...Bd3
- 2.d8Q#
- 2.d8R#
- 1...Bf5
- 2.Bxf6#
- 1...Bg6
- 2.d8Q#
- 2.d8R#
- 1...Bh7
- 2.d8Q#
- 2.d8R#
- 1...Sh1
- 2.d8Q#
- 2.d8R#
- 1...Se2
- 2.d8Q#
- 2.d8R#
- 1...Sf5
- 2.Bxf6#
- 1...Sc5
- 2.Qb4#
- 2.Qa1#
- 2.Qxc5#
- 1...Sc7
- 2.Qb4#
- 2.Qa1#
- 2.Qc5#
- 1...Sb8
- 2.Qb4#
- 2.Qa1#
- 2.Qc5#
- 1...c5
- 2.Qa1#
- 2.d8Q#
- 2.d8R#
- 1...f5
- 2.Bf6#
- 2.Qa1#
- 2.Qe5#
- 2.d8Q#
- 2.d8R#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 10
- Sets
- R(g);N_GUARD::B(F),XP(j)
- B(a);N_GUARD::B(F),XB(a)
- B(b);XP(C)::S(A),XB(b)
- B(b);S_CUTR(g)::B(F),XP(j)
- S(h);N_GUARD::QAB1(D)
- S(h);N_GUARD::QAB1(D),XS(h)
- P(i);SBLOCK,XS(E)::QAB(D)
- P(j);S_CUTR(g)::B(F)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(g);XB(F)::QAB(D)
- B(b);XP(C)::S(A),XB(b)
- S(d);XB(B)::QAB(D)
- Q(c);::P=Q
- Q(c);::QAB(D)
- B(b);::P=Q
- B(b);S_CUTR(g)::B(F),XP(j)
- S(d);::QAB(D)
- S(d);S_CUTQ(c)::S(E),XB(b)
- S(d);N_GUARD,S_CUTB(b)::S(E)
- Refutation
- B(b);
- Try
- B(B);XS(h)
- Threat
- QAB1(D)
- Vars
- P(i);::QAB1(D),XP(i)
- Refutation
- S(d);
- Try
- Q(D);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR1(D),XB(b)
- Refutation
- Q(c);XQ(D)
- Try
- Actual
- S(E);
- Threat
- DUALS(3)
- Vars
- R(g);XB(F)::QAB(D)
- B(b);XP(C)::S(A),XB(b)
- S(d);XB(B)::P=Q
- B(b);SBLOCK::S(E)
- S(d);SBLOCK::S(E)
- Q(c);::QAB(D)
- Q(c);::P=Q
- B(b);::P=Q
- B(b);S_CUTR(g)::B(F),XP(j)
- S(d);::P=Q
- S(d);S_CUTR(g)::B(F),XP(j)
Developed and maintained by Brian Stephenson.
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