MESON Chess Problem Database
Problem Display
PID: 92011 (1r1n4/2R1K3/b1Np1Bp1/R1nk4/Bp1p4/1PPp2pp/4PN2/1Q6 w - - 0 1)
Prins, Hendrik
Deutsche Schachblatter, 1986
#2
11 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.c4#
- 1...Ra8
- 2.Sxb4#
- 1...Rc8
- 2.Sxb4#
- 1...Bb5
- 2.Sxb4#
- 1...Bb7
- 2.Sxb4#
- 2.c4#
- 1...Bc8
- 2.c4#
- 1...Sxc6+
- 2.Bxc6#
- 1...Sb7
- 2.Sxb4#
- 1...dxe2
- 2.Qe4#
- 1...d2
- 2.Qe4#
- 1...gxf2
- 2.Qh1#
- 1...dxc3
- 2.e4#
- 1...Rb5
- Tries
- 1.Sxd4?
- threat
- 2.e4#
- 1...Sc6+
- 2.Bxc6#
- 1...dxe2
- 2.Qe4#
- 1...gxf2
- 2.Qh1#
- 1...Rb5
- 2.c4#
- 1...Bb5!
- threat
- 1.Bb5?
- threat
- 2.Sxb4#
- 2.c4#
- 1...Sxc6+
- 2.Bxc6#
- 1...Rxb5
- 2.c4#
- 1...Bxb5
- 2.Sxb4#
- 1...Sxb3
- 2.Sxb4#
- 1...bxc3
- 2.Sb4#
- 1...dxc3
- 2.Sxb4#
- 1...Sa4
- 2.Sxb4#
- 2.Bc4#
- 1...Se4
- 2.Sxb4#
- 2.Bc4#
- 1...Sce6
- 2.Sxb4#
- 2.Bc4#
- 1...Scb7
- 2.Sxb4#
- 2.Bc4#
- 1...Sd7
- 2.Sxb4#
- 2.Bc4#
- 1...gxf2!
- threat
- 1.Rb5?
- threat
- 2.Sxb4#
- 2.c4#
- 1...Rxb5
- 2.c4#
- 1...Bxb5
- 2.Sxb4#
- 1...gxf2
- 2.Qh1#
- 1...bxc3
- 2.Sb4#
- 1...dxc3
- 2.Sxb4#
- 2.Qxd3#
- 2.e4#
- 1...Sxc6+!
- threat
- 1.Rxc5+?
- 1...dxc5
- 2.Rd7#
- 1...Kxc5!
- 1...dxc5
- 1.Qxd3?
- threat
- 2.Qe4#
- 2.Qf3#
- 2.Qxd4#
- 2.e4#
- 1...Sxc6+
- 2.Bxc6#
- 1...gxf2
- 2.Qf3#
- 2.Qxd4#
- 2.e4#
- 1...Rb5
- 2.Qc4#
- 2.Qxd4#
- 2.c4#
- 1...Bb5
- 2.Sxb4#
- 2.Qxd4#
- 1...Se6
- 2.Qe4#
- 2.Qf3#
- 2.e4#
- 1...Bxd3!
- threat
- 1.e3?
- threat
- 2.e4#
- 1...Sxc6+
- 2.Bxc6#
- 1...gxf2
- 2.Qh1#
- 1...Rb5
- 2.c4#
- 1...Bb5
- 2.Sxb4#
- 1...dxe3!
- threat
- 1.cxd4?
- threat
- 2.e4#
- 1...Sxc6+
- 2.Bxc6#
- 1...dxe2
- 2.Qe4#
- 1...gxf2
- 2.Qh1#
- 1...Bb5
- 2.Sxb4#
- 1...Rb5!
- threat
- 1.Sxd4?
- Keys
- 1.Bxd4!
- threat
- 2.e4#
- 1...Sxc6+
- 2.Bxc6#
- 1...dxe2
- 2.Qe4#
- 1...gxf2
- 2.Qh1#
- 1...Bb5
- 2.Sxb4#
- 1...Rb5
- 2.c4#
- threat
- 1.Bxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- R(k);N_SPINS(f),S_CUTB(h)::P(E)
- R(k);N_GUARD::S(H),XP(d)
- B(h);N_SPINS(f),S_CUTR(k)::S(H),XP(d)
- B(h);N_GUARD::P(E)
- S(l);CHECK,OGATE,XS(H)::B(F),XS(l)
- S(l);S_CUTR(k)::S(H),XP(d)
- P(a);OGATE,XP(B)::QAB1(A)
- P(a);OGATE::QAB1(A)
- P(b);N_GUARD,XS(C)::QAB(A)
- P(e);N_GUARD,XP(E)::P(B)
- Tries
- Try
- S(H);XP(e)
- Threat
- P(B)
- Vars
- S(l);CHECK,N_GUARD::B(F),XS(l)
- P(a);OGATE,XP(B)::QAB1(A)
- P(b);N_GUARD,XS(C)::QAB(A)
- R(k);N_SPINS(f),S_CUTB(h)::P(E)
- Refutation
- B(h);N_SPINS(f)
- Try
- B(F);N_PINS(f)
- Threat
- DUALS(2)
- Vars
- S(l);CHECK,OGATE,XS(H)::B(F),XS(l)
- R(k);XB(F)::P(E)
- B(h);XB(F)::S(H),XP(d)
- S(f);XP(D)::S(H),XP(d)
- P(d);XP(E)::S(H)
- P(e);XP(E)::S(H),XP(d)
- Refutation
- P(b);XS(C)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(k);N_SPINS(f),XR(G)::P(E)
- B(h);N_SPINS(f),XR(G)::S(H),XP(d)
- P(b);N_GUARD,XS(C)::QAB(A)
- P(d);XP(E)::S(H)
- Refutation
- S(l);CHECK,XS(H)
- Try
- R(G);CHECK,XS(f)
- Vars
- P(i);SBLOCK,XR(G)::R(J)
- Refutation
- K(g);P-FLIGHT,XR(G)
- Try
- Q(A);P_PINP(e),XP(a)
- Threat
- DUALS(4)
- Vars
- S(l);CHECK,OGATE,XS(H)::B(F),XS(l)
- Refutation
- B(h);N_SPINP(e),XQ(A)
- Try
- P(B);
- Threat
- P(B)
- Vars
- S(l);CHECK,OGATE,XS(H)::B(F),XS(l)
- P(b);N_GUARD,XS(C)::QAB(A)
- R(k);N_SPINS(f),S_CUTB(h)::P(E)
- B(h);N_SPINS(f),S_CUTR(k)::S(H),XP(d)
- Refutation
- P(e);XP(B)
- Try
- P(E);XP(e)
- Threat
- P(B)
- Vars
- S(l);CHECK,OGATE,XS(H)::B(F),XS(l)
- P(a);OGATE,XP(B)::QAB1(A)
- P(b);N_GUARD,XS(C)::QAB(A)
- B(h);N_SPINS(f),S_CUTR(k)::S(H),XP(d)
- Refutation
- R(k);N_SPINS(f)
- Try
- Actual
- B(I);XP(e)
- Threat
- P(B)
- Vars
- S(l);CHECK,OGATE,XS(H)::B(F),XS(l)
- P(a);OGATE,XP(B)::QAB1(A)
- P(b);N_GUARD,XS(C)::QAB(A)
- B(h);N_SPINS(f),S_CUTR(k)::S(H),XP(d)
- R(k);N_SPINS(f),S_CUTB(h)::P(E)
Developed and maintained by Brian Stephenson.
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