MESON Chess Problem Database
Problem Display
PID: 234850 (4N2n/4p3/3r4/1pQpk1N1/3p4/8/B2R2P1/q1n2RK1 w - - 0 1)
Groeneveld, Cornelis
Revista Romana de Sah, 1985
#2
8 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qxd4#
- 1...Qxa2
- 2.Qxd4#
- 1...Ra6
- 2.Qxd5#
- 1...Rb6
- 2.Qxd5#
- 1...Rc6
- 2.Qxd5#
- 1...Re6
- 2.Qxd5#
- 1...Rf6
- 2.Qxd5#
- 1...Rg6
- 2.Qxd5#
- 1...Rh6
- 2.Qxd5#
- 1...Rd8
- 2.Qxe7#
- 1...Sxa2
- 2.Re2#
- 1...Se2+
- 2.Rxe2#
- 1...Sb3
- 2.Re2#
- 1...Sd3
- 2.Re2#
- 1...d3
- 2.Qe3#
- 1...e6
- 2.Qxd6#
- 1...Qb1
- Tries
- 1.Sxd6?
- threat
- 2.Rf5#
- 2.Qxd5#
- 1...Se2+
- 2.Rxe2#
- 1...Qxa2
- 2.Rf5#
- 1...Sxa2
- 2.Re2#
- 1...exd6
- 2.Qxd5#
- 1...Qb1
- 2.Qxd5#
- 1...Sb3
- 2.Re2#
- 1...Sd3
- 2.Re2#
- 2.Qxd5#
- 1...e6!
- threat
- 1.Sf6?
- threat
- 2.Sg4#
- 1...Se2+
- 2.Rxe2#
- 1...Rxf6
- 2.Qxd5#
- 1...exf6!
- threat
- 1.Sg7?
- threat
- 2.Rf5#
- 1...Se2+
- 2.Rxe2#
- 1...Sxa2
- 2.Re2#
- 1...Qb1
- 2.Qxd4#
- 1...Rf6
- 2.Qxd5#
- 1...Sb3
- 2.Re2#
- 1...Sd3
- 2.Re2#
- 1...e6!
- threat
- 1.Bb1?
- threat
- 2.Rf5#
- 1...Se2+
- 2.Rxe2#
- 1...Qxb1
- 2.Qxd4#
- 1...Sd3
- 2.Re2#
- 1...d3
- 2.Qe3#
- 1...e6
- 2.Qxd6#
- 1...Rf6!
- threat
- 1.Rdf2?
- threat
- 2.Rf5#
- 1...Se2+
- 2.Rxe2#
- 1...Rf6
- 2.Qxd5#
- 1...e6
- 2.Qxd6#
- 1...Qb1!
- threat
- 1.Sxd6?
- Keys
- 1.g4!
- threat
- 2.Rf5#
- 1...Se2+
- 2.Rxe2#
- 1...Sxa2
- 2.Re2#
- 1...Qb1
- 2.Qxd4#
- 1...Rf6
- 2.Qxd5#
- 1...Sb3
- 2.Re2#
- 1...Sd3
- 2.Re2#
- 1...e6
- 2.Qxd6#
- threat
- 1.g4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::QAB1(F),XP(c)
- Q(a);N_GUARD,XB(C)::QAB1(F),XP(c)
- R(g);N_GUARD::QAR1(F),XP(e)
- R(g);OGATE::QAR2(F),XP(h)
- S(b);N_GUARD,P_PINR(A),XB(C)::R(D)
- S(b);CHECK,N_GUARD,P_PINR(A)::R(D),XS(b)
- S(b);N_GUARD,P_PINR(A)::R(D)
- P(c);OGATE::QAR2(F)
- P(h);N_GUARD::QAB1(F),XR(g)
- Tries
- Try
- S(H);XR(g)
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,N_GUARD,P_PINR(A)::R(D),XS(b)
- Q(a);XB(C)::R1(A)
- S(b);N_GUARD,P_PINR(A),XB(C)::R(D)
- P(h);XS(H)::QAR1(F),XP(e)
- Q(a);::QAR1(F),XP(e)
- S(b);N_GUARD,P_PINR(A)::R(D)
- Refutation
- P(h);
- Try
- S(H);
- Threat
- S(H)
- Vars
- S(b);CHECK,N_GUARD,P_PINR(A)::R(D),XS(b)
- R(g);N_GUARD,XS(H)::QAR1(F),XP(e)
- Refutation
- P(h);XS(H)
- Try
- S(H);
- Threat
- R1(A)
- Vars
- S(b);CHECK,N_GUARD,P_PINR(A)::R(D),XS(b)
- S(b);N_GUARD,P_PINR(A),XB(C)::R(D)
- Q(a);N_GUARD::QAB1(F),XP(c)
- R(g);N_GUARD::QAR1(F),XP(e)
- S(b);N_GUARD,P_PINR(A)::R(D)
- Refutation
- P(h);
- Try
- B(C);
- Threat
- R1(A)
- Vars
- S(b);CHECK,N_GUARD::R(D),XS(b)
- Q(a);N_GUARD,XB(C)::QAB1(F),XP(c)
- S(b);N_GUARD::R(D)
- P(c);OGATE::QAR2(F)
- P(h);N_GUARD::QAB1(F),XR(g)
- Refutation
- R(g);
- Try
- R(D);
- Threat
- R1(D)
- Vars
- S(b);CHECK,N_GUARD,P_PINR(A)::R(D),XS(b)
- R(g);N_GUARD::QAR1(F),XP(e)
- P(h);N_GUARD::QAB1(F),XR(g)
- Refutation
- Q(a);
- Try
- Actual
- P(E);
- Threat
- R1(A)
- Vars
- S(b);CHECK,N_GUARD,P_PINR(A)::R(D),XS(b)
- S(b);N_GUARD,P_PINR(A),XB(C)::R(D)
- Q(a);N_GUARD::QAB1(F),XP(c)
- R(g);N_GUARD::QAR1(F),XP(e)
- S(b);N_GUARD,P_PINR(A)::R(D)
- P(h);N_GUARD::QAB1(F),XR(g)
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