MESON Chess Problem Database
Problem Display
PID: 206398 (3R2B1/1PP1k3/pn3pK1/Q5p1/2p5/4b3/1Bn5/5r2 w - - 0 1)
Eerkes, Allard Pieter
Els Escacs a Catalunya, 1925
#2
7 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Bxf6#
- 1...Rb1
- 2.Bxf6#
- 1...Rc1
- 2.Bxf6#
- 1...Rd1
- 2.Bxf6#
- 1...Re1
- 2.Bxf6#
- 1...Rg1
- 2.Bxf6#
- 1...Rh1
- 2.Bxf6#
- 1...Bc1
- 2.Qc5#
- 1...Bd2
- 2.Qc5#
- 1...Bf2
- 2.Bxf6#
- 1...Bf4
- 2.Bxf6#
- 1...Bc5
- 2.Qxc5#
- 1...Sd4
- 2.Ba3#
- 2.Qb4#
- 2.Qa3#
- 2.Qc5#
- 1...Sa4
- 2.c8S#
- 1...Sd5
- 2.c8S#
- 1...Sd7
- 2.c8S#
- 1...Sa8
- 2.c8S#
- 1...Sc8
- 2.bxc8S#
- 1...f5
- 2.Bf6#
- 2.Qe5#
- 1...Ra1
- Tries
- 1.Qb4+?
- 1...Bc5
- 2.Qxc5#
- 1...Sxb4!
- 1...Bc5
- 1.Qxb6?
- threat
- 2.Qd6#
- 2.Qe6#
- 2.c8S#
- 1...Rd1
- 2.Bxf6#
- 2.Qe6#
- 2.Qxf6#
- 2.c8S#
- 1...Bf4
- 2.Bxf6#
- 2.Qe6#
- 2.Qxf6#
- 2.c8S#
- 1...Bc5
- 2.Qxc5#
- 2.Qe6#
- 2.c8S#
- 1...Sd4
- 2.Ba3#
- 2.Qc5#
- 2.Qb4#
- 2.Qd6#
- 2.c8S#
- 1...Bxb6!
- threat
- 1.Qa3+?
- 1...Bc5
- 2.Qxc5#
- 1...Sb4
- 2.Qxe3#
- 1...Sxa3!
- 1...Bc5
- 1.Qa4?
- threat
- 2.Qe8#
- 1...Sd7
- 2.Qxd7#
- 1...Sxa4!
- threat
- 1.Qb5?
- threat
- 2.Qe8#
- 1...Sd7
- 2.Qxd7#
- 1...axb5!
- threat
- 1.Qd5?
- threat
- 2.Qe4#
- 2.Qe6#
- 2.Qf7#
- 2.Qd6#
- 1...Rd1
- 2.Bxf6#
- 2.Qe4#
- 2.Qe6#
- 2.Qf7#
- 1...Rf4
- 2.Qe6#
- 2.Qf7#
- 2.Qd6#
- 1...Rf5
- 2.Qe6#
- 2.Qf7#
- 2.Qd6#
- 1...Bd4
- 2.Qe6#
- 2.Qf7#
- 2.Qd6#
- 1...Bf4
- 2.Bxf6#
- 2.Qe6#
- 2.Qf7#
- 1...Bc5
- 2.Qe4#
- 2.Qe6#
- 2.Qf7#
- 2.Qxc5#
- 1...Sd4
- 2.Ba3#
- 2.Qf7#
- 2.Qc5#
- 2.Qd6#
- 1...Sd7
- 2.Qe6#
- 2.Qxd7#
- 1...Sc8
- 2.Qe4#
- 2.Qe6#
- 2.Qf7#
- 2.Qd7#
- 2.bxc8S#
- 1...f5
- 2.Bf6#
- 2.Qe6#
- 2.Qf7#
- 2.Qe5#
- 2.Qd6#
- 1...Sxd5!
- threat
- 1.Qf5?
- threat
- 2.Bxf6#
- 2.Qe4#
- 2.Qe6#
- 1...Sd7
- 2.Qe6#
- 2.Qxd7#
- 1...Rf4
- 2.Bxf6#
- 2.Qe6#
- 1...Bd4
- 2.Qe6#
- 1...Bf4
- 2.Bxf6#
- 2.Qe6#
- 2.Qxf6#
- 1...Sd4
- 2.Ba3#
- 2.Qc5#
- 1...Sd5
- 2.Qe4#
- 2.Qe6#
- 2.Qd7#
- 1...c3
- 2.Qe4#
- 2.Qe6#
- 1...Rxf5!
- threat
- 1.b8S?
- threat
- 2.Sc6#
- 1...Sd7
- 2.c8S#
- 1...Sd4
- 2.Ba3#
- 2.Qb4#
- 2.Qa3#
- 2.Qc5#
- 1...Sb4!
- threat
- 1.c8S+?
- 1...Sxc8
- 2.Qc7#
- 2.bxc8S#
- 1...Kxd8!
- 1...Sxc8
- 1.Qb4+?
- Keys
- 1.Be5!
- threat
- 2.Bd6#
- 1...fxe5
- 2.Qxe5#
- 1...Rd1
- 2.Bxf6#
- 1...Bf4
- 2.Bxf6#
- 2.Qc5#
- 1...Bc5
- 2.Qxc5#
- 1...Sd7
- 2.c8S#
- 1...Sc8
- 2.bxc8S#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- R(a);N_GUARD::B(A),XP(h)
- B(c);N_GUARD::QAB(B)
- B(c);S_CUTR(a)::B(A),XP(h)
- B(c);N_GUARD::QAB(B),XB(c)
- S(g);N_GUARD::P=S
- S(g);OGATE::PXS(g)=S
- Tries
- Try
- Q(B);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAB(B),XB(c)
- Refutation
- S(b);XQ(B)
- Try
- Q(B);XS(g)
- Threat
- DUALS(3)
- Refutation
- B(c);XQ(B)
- Try
- Q(B);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAB(B),XB(c)
- S(b);N_GUARD,P_SPINS(b)::QAR(B),XB(c)
- Refutation
- S(b);XQ(B)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- S(g);N_GUARD::QAR1(B),XS(g)
- Refutation
- S(g);XQ(B)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- S(g);N_GUARD::QAR1(B),XS(g)
- Refutation
- P(f);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(4)
- Refutation
- S(g);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(c);::QAR1(B)
- Refutation
- R(a);XQ(B)
- Try
- P(D);
- Threat
- S(D)
- Vars
- S(g);N_GUARD::P=S
- Refutation
- S(b);
- Try
- P(E);CHECK
- Refutation
- K(i);P_SPINS(g),S_FLIGHT,XR(F)
- Try
- Actual
- B(A);
- Threat
- B(A)
- Vars
- P(h);OGATE,XB(A)::QAR2(B),XP(h)
- R(a);N_GUARD::B(A),XP(h)
- B(c);N_GUARD::QAB(B),XB(c)
- S(g);N_GUARD::P=S
- S(g);OGATE::PXS(g)=S
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