MESON Chess Problem Database
Problem Display
PID: 1038 (6B1/nn1R2p1/3r2N1/4p3/2pkP3/2bN4/2Q4K/2B1R2b w - - 0 1)
Groeneveld, Cornelis
The Problemist Supplement, 1998
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Rxd5#
- 1...Bxe4
- 2.Be3#
- 1...Ba1
- 2.Qxc4#
- 1...Bxe1
- 2.Qxc4#
- 1...Bb2
- 2.Qxc4#
- 1...Bd2
- 2.Qxc4#
- 1...Bb4
- 2.Qxc4#
- 1...Ba5
- 2.Qxc4#
- 1...Sa5
- 2.Rxd6#
- 1...Sc5
- 2.Rxd6#
- 1...Sd8
- 2.Rxd6#
- 1...cxd3
- 2.Qf2#
- 1...Rd5
- Tries
- 1.Sb2?
- threat
- 2.Be3#
- 2.Qf2#
- 1...Bxe1
- 2.Qxc4#
- 1...Bxb2
- 2.Be3#
- 2.Qxc4#
- 1...Bd2
- 2.Qxc4#
- 1...Bb4
- 2.Be3#
- 2.Qxc4#
- 1...Ba5
- 2.Be3#
- 2.Qxc4#
- 1...Kc5!
- threat
- 1.Sf2?
- threat
- 2.Be3#
- 1...Bxe1
- 2.Qxc4#
- 1...Bd2
- 2.Qxc4#
- 1...Kc5!
- threat
- 1.Sb4?
- threat
- 2.Be3#
- 2.Qf2#
- 1...Bxe1
- 2.Qxc4#
- 1...Bxb4
- 2.Be3#
- 2.Qxc4#
- 1...Ba1
- 2.Be3#
- 2.Qxc4#
- 1...Bb2
- 2.Be3#
- 2.Qxc4#
- 1...Bd2
- 2.Qxc4#
- 1...Kc5!
- threat
- 1.Sc5?
- threat
- 2.Se6#
- 2.Be3#
- 2.Qf2#
- 1...Bxe4
- 2.Be3#
- 2.Qf2#
- 1...Bxe1
- 2.Se6#
- 2.Qxc4#
- 1...Sxc5
- 2.Be3#
- 2.Rxd6#
- 1...Ba1
- 2.Se6#
- 2.Be3#
- 2.Qxc4#
- 1...Bb2
- 2.Se6#
- 2.Be3#
- 2.Qxc4#
- 1...Bd2
- 2.Se6#
- 2.Qxc4#
- 1...Bb4
- 2.Se6#
- 2.Be3#
- 2.Qxc4#
- 1...Ba5
- 2.Se6#
- 2.Be3#
- 2.Qxc4#
- 1...Sd8
- 2.Be3#
- 2.Qf2#
- 1...Kxc5!
- threat
- 1.Sdxe5?
- threat
- 2.Be3#
- 2.Qf2#
- 1...Bxe1
- 2.Qxc4#
- 1...Ba1
- 2.Be3#
- 2.Qxc4#
- 1...Bb2
- 2.Be3#
- 2.Qxc4#
- 1...Bd2
- 2.Qxc4#
- 1...Bb4
- 2.Be3#
- 2.Qxc4#
- 1...Ba5
- 2.Be3#
- 2.Qxc4#
- 1...Kc5!
- threat
- 1.Sgf4?
- threat
- 2.Se6#
- 2.Qf2#
- 1...Bxe4
- 2.Se2#
- 2.Be3#
- 2.Qf2#
- 1...Bxe1
- 2.Qxc4#
- 1...cxd3
- 2.Qf2#
- 1...Ba1
- 2.Se6#
- 2.Qxc4#
- 1...Bb2
- 2.Se6#
- 2.Qxc4#
- 1...Bd2
- 2.Se6#
- 2.Qxc4#
- 1...Bb4
- 2.Se6#
- 2.Qxc4#
- 1...Ba5
- 2.Se6#
- 2.Qxc4#
- 1...Sc5
- 2.Rxd6#
- 2.Qf2#
- 1...Sd8
- 2.Rxd6#
- 2.Qf2#
- 1...exf4!
- threat
- 1.Sh4?
- threat
- 2.Sf5#
- 1...Bxe4
- 2.Be3#
- 1...Bxe1
- 2.Qxc4#
- 1...cxd3
- 2.Qf2#
- 1...g6!
- threat
- 1.Sgxe5?
- threat
- 2.Qf2#
- 1...Bxe1
- 2.Qxc4#
- 1...Ba1
- 2.Qxc4#
- 1...Bb2
- 2.Qxc4#
- 1...Bd2
- 2.Qxc4#
- 1...Bb4
- 2.Qxc4#
- 1...Ba5
- 2.Qxc4#
- 1...cxd3!
- threat
- 1.Se7?
- threat
- 2.Sf5#
- 1...Bxe4
- 2.Be3#
- 1...Bxe1
- 2.Qxc4#
- 1...cxd3
- 2.Qf2#
- 1...g6!
- threat
- 1.Bb2?
- threat
- 2.Bxc3#
- 2.Qxc3#
- 1...Bxb2
- 2.Qxc4#
- 1...cxd3
- 2.Qf2#
- 2.Qxc3#
- 1...Sb5!
- threat
- 1.Bd2?
- threat
- 2.Bxc3#
- 2.Qxc3#
- 1...Bxd2
- 2.Qxc4#
- 1...cxd3
- 2.Qxc3#
- 1...Ba1
- 2.Qxc4#
- 1...Bb2
- 2.Qxc4#
- 1...Bb4
- 2.Qxc4#
- 1...Ba5
- 2.Qxc4#
- 1...Sb5!
- threat
- 1.Bd5?
- threat
- 2.Be3#
- 1...Rxd5
- 2.Rxd5#
- 1...Bxe1
- 2.Qxc4#
- 1...Bd2
- 2.Qxc4#
- 1...Bxe4!
- threat
- 1.Qa2?
- threat
- 2.Qxc4#
- 1...cxd3
- 2.Qc4#
- 2.Qf2#
- 1...Rd5
- 2.Rxd5#
- 1...Sa5
- 2.Rxd6#
- 1...Kxd3!
- threat
- 1.Sb2?
- Keys
- 1.Sf8!
- threat
- 2.Se6#
- 1...Bxe4
- 2.Be3#
- 1...Bxe1
- 2.Qxc4#
- 1...cxd3
- 2.Qf2#
- 1...Sc5
- 2.Rxd6#
- 1...Sd8
- 2.Rxd6#
- threat
- 1.Sf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- R(f);OGATE::R1(H),XR(f)
- B(a);SBLOCK,XP(F)::B(A)
- B(b);OGATE::QAR1(C),XP(c)
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- S(h);N_GUARD::R(H),XR(f)
- P(c);SBLOCK,XS(E)::QAB(C)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- B(b);OGATE::QAR1(C),XP(c)
- Refutation
- K(d);N_SPINR(f),S_FLIGHT
- Try
- S(E);
- Threat
- B(A)
- Vars
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- B(b);OGATE::QAR1(C),XP(c)
- Refutation
- K(d);N_SPINR(f),S_FLIGHT
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- B(b);OGATE::QAR1(C),XP(c)
- Refutation
- K(d);N_SPINR(f),S_FLIGHT
- Try
- S(E);
- Threat
- DUALS(3)
- Refutation
- K(d);N_SPINR(f),S_FLIGHT,XS(E)
- Try
- S(E);XP(e)
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- B(b);OGATE::QAR1(C),XP(c)
- Refutation
- K(d);N_SPINR(f),S_FLIGHT
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- P(c);XS(E)::QAB(C)
- Refutation
- P(e);XS(G)
- Try
- S(G);
- Threat
- S(G)
- Vars
- B(a);SBLOCK,XP(F)::B(A)
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- P(c);SBLOCK,XS(E)::QAB(C)
- Refutation
- P(i);
- Try
- S(G);XP(e)
- Threat
- QAB(C)
- Vars
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- B(b);OGATE::QAR1(C),XP(c)
- Refutation
- P(c);XS(E)
- Try
- S(G);
- Threat
- S(G)
- Vars
- B(a);SBLOCK,XP(F)::B(A)
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- P(c);SBLOCK,XS(E)::QAB(C)
- Refutation
- P(i);
- Try
- B(A);P_PINB(b)
- Threat
- DUALS(2)
- Vars
- B(b);N_SPINB(b),OGATE,XB(A)::QAR1(C),XP(c)
- Refutation
- S(g);
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,XB(A)::QAR1(C),XP(c)
- P(c);XS(E)::QAB1(C),XB(b)
- B(b);OGATE::QAR1(C),XP(c)
- Refutation
- S(g);
- Try
- B(I);N_PINR(f)
- Threat
- B(A)
- Vars
- R(f);OGATE,P_SPINR(f),XB(I)::R1(H),XR(f)
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- B(b);OGATE::QAR1(C),XP(c)
- Refutation
- B(a);XP(F)
- Try
- Q(C);
- Threat
- QAR1(C),XP(c)
- Vars
- R(f);OGATE::R1(H),XR(f)
- S(h);N_GUARD::R(H),XR(f)
- Refutation
- K(d);P-FLIGHT,XS(E)
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- B(a);SBLOCK,XP(F)::B(A)
- B(b);OGATE,XR(B)::QAR1(C),XP(c)
- P(c);SBLOCK,XS(E)::QAB(C)
- S(h);N_GUARD::R(H),XR(f)
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