MESON Chess Problem Database
Problem Display
PID: 238742 (1b6/q1p3R1/n1p5/4P2r/r2k4/1P2NB1b/1P2KNPB/2R5 w - - 0 1)
Groeneveld, Cornelis
idee & form, 1999
#2
11 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc5
- 2.Rd1#
- 1...Ra1
- 2.Rc4#
- 1...Ra2
- 2.Rc4#
- 1...Ra3
- 2.Rc4#
- 1...Rc4
- 2.Rxc4#
- 1...Ra5
- 2.Rc4#
- 1...Rf5
- 2.Rd7#
- 1...Bxg2
- 2.Rg4#
- 2.Rd7#
- 1...Bg4
- 2.Rxg4#
- 1...Bd7
- 2.Rxd7#
- 1...Sb4
- 2.Rc4#
- 1...Sc5
- 2.Sc2#
- 1...c5
- 2.Sc2#
- 2.Rd1#
- 1...Qc5
- Tries
- 1.Sd3?
- threat
- 2.Sc2#
- 1...Rxe5
- 2.Bxe5#
- 1...Rc4
- 2.Rxc4#
- 1...Sb4
- 2.Rc4#
- 1...Qc5!
- threat
- 1.Sxh3?
- threat
- 2.Rg4#
- 2.Rd7#
- 1...Rc4
- 2.Rxc4#
- 1...Qc5
- 2.Rd1#
- 2.Rg4#
- 1...Ra5
- 2.Rc4#
- 2.Rg4#
- 1...Rh4
- 2.Sf5#
- 2.Rd7#
- 1...Rf5
- 2.Sxf5#
- 2.Rd7#
- 1...Rg5
- 2.Rd7#
- 1...Rh6
- 2.Sf5#
- 2.Rg4#
- 1...Rh7
- 2.Sf5#
- 2.Rg4#
- 1...Sb4
- 2.Rc4#
- 2.Rg4#
- 1...Sc5
- 2.Sc2#
- 1...Rxe5!
- threat
- 1.Se4?
- threat
- 2.Rd1#
- 1...Ra1
- 2.Rc4#
- 1...Sb4
- 2.Rc4#
- 1...Sc5!
- threat
- 1.Sf5+?
- 1...Rxf5
- 2.Rd7#
- 1...Bxf5!
- 1...Rxf5
- 1.gxh3?
- threat
- 2.Rg4#
- 2.Rd7#
- 1...Rc4
- 2.Rxc4#
- 1...Qc5
- 2.Rd1#
- 2.Rg4#
- 1...Ra5
- 2.Rc4#
- 2.Rg4#
- 1...Rh4
- 2.Sf5#
- 2.Rd7#
- 1...Rf5
- 2.Sxf5#
- 2.Rd7#
- 1...Rg5
- 2.Rd7#
- 1...Rh6
- 2.Sf5#
- 2.Rg4#
- 1...Rh7
- 2.Sf5#
- 2.Rg4#
- 1...Sb4
- 2.Rc4#
- 2.Rg4#
- 1...Sc5
- 2.Sc2#
- 1...Rxe5!
- threat
- 1.bxa4?
- threat
- 2.Rc4#
- 1...Qc5
- 2.Rd1#
- 1...Be6!
- threat
- 1.b4?
- threat
- 2.Rd1#
- 2.Rc4#
- 1...Sxb4
- 2.Rc4#
- 1...Qc5
- 2.Rd1#
- 1...Ra1
- 2.Rc4#
- 1...Ra3
- 2.Rc4#
- 1...Bf5
- 2.Rc4#
- 1...Be6
- 2.Rd1#
- 1...Sc5
- 2.Rc4#
- 1...Rxb4!
- threat
- 1.Sd3?
- Keys
- 1.Sfg4!
- threat
- 2.Rd7#
- 1...Rxe5
- 2.Bxe5#
- 1...Bxg4
- 2.Rxg4#
- 1...Rc4
- 2.Rxc4#
- 1...Qc5
- 2.Rd1#
- 1...Ra5
- 2.Rc4#
- 1...Rh6
- 2.Sf5#
- 1...Rh7
- 2.Sf5#
- 1...Sb4
- 2.Rc4#
- 1...Sc5
- 2.Sc2#
- threat
- 1.Sfg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- Q(g);SBLOCK::R(A)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD,P_PINP(B)::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- R(d);S_CUTB(a)::R(K)
- B(a);N_GUARD,P_PINB(I)::R(K),XB(a)
- B(a);N_GUARD::R(K),XB(a)
- S(e);S_CUTR(b)::R1(A)
- S(e);SBLOCK::S(H)
- Tries
- Try
- S(D);
- Threat
- S(H)
- Vars
- R(d);OGATE,P_PINS(H),XP(J)::B(F),XR(d)
- R(b);N_GUARD::R1(A),XR(b)
- S(e);S_CUTR(b)::R1(A)
- Refutation
- Q(g);
- Try
- S(D);XB(a)
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD::R1(A),XR(b)
- R(d);::R(K)
- S(e);SBLOCK::S(H)
- Refutation
- R(d);P_PINS(H),XP(J)
- Try
- S(D);
- Threat
- R(A)
- Vars
- R(b);N_GUARD::R1(A)
- S(e);S_CUTR(b)::R1(A)
- Refutation
- S(e);
- Try
- S(H);CHECK
- Vars
- R(d);XS(H)::R(K)
- Refutation
- B(a);XS(H)
- Try
- P(E);XB(a)
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD::R1(A),XR(b)
- R(d);::R(K)
- S(e);SBLOCK::S(H)
- Refutation
- R(d);P_PINS(H),XP(J)
- Try
- P(G);XR(b)
- Threat
- R1(A)
- Vars
- Q(g);SBLOCK::R(A)
- Refutation
- B(a);
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- S(e);XP(G)::R1(A)
- Q(g);::R(A)
- R(b);::R1(A)
- B(a);::R1(A)
- B(a);::R(A)
- S(e);::R1(A)
- Refutation
- R(b);XP(G)
- Try
- Actual
- S(D);
- Threat
- R(K)
- Vars
- R(d);OGATE,P_PINS(H),XP(J)::B(F),XR(d)
- B(a);OGATE,P_PINB(I),XS(D)::R(K),XB(a)
- R(b);N_GUARD::R1(A),XR(b)
- Q(g);SBLOCK::R(A)
- R(b);N_GUARD::R1(A)
- R(d);N_GUARD::S(H)
- S(e);S_CUTR(b)::R1(A)
- S(e);SBLOCK::S(H)
Developed and maintained by Brian Stephenson.
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