MESON Chess Problem Database
Problem Display
PID: 249304 (5n2/1K1N4/BP1P2R1/3kP3/R2B1Pp1/5P1Q/Nb2n3/1r1r1q2 w - - 0 1)
van Gool, Johann Christoffel
The Problemist, 1990
#2
13 + 8
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Ra5#
- 1...Bxd4
- 2.Bc4#
- 1...Sxd4
- 2.Sb4#
- 1...Se6
- 2.Sf6#
- 1...gxf3
- 2.Sf6#
- 1...g3
- 2.Sf6#
- 1...Rxd4
- Tries
- 1.Bf2?
- threat
- 2.Sb4#
- 2.Bc4#
- 2.Ra5#
- 1...Bxe5
- 2.Bc4#
- 1...Sxf4
- 2.Sb4#
- 1...Sxg6
- 2.Bc4#
- 1...Sxd7
- 2.Sb4#
- 2.Bc4#
- 1...gxf3
- 2.Sf6#
- 2.Qxf3#
- 1...Qe1
- 2.Bc4#
- 1...Rbc1
- 2.Sb4#
- 1...Rdc1
- 2.Sb4#
- 1...Rd4
- 2.Ra5#
- 1...Ba1
- 2.Bc4#
- 1...Bc1
- 2.Bc4#
- 1...Ba3
- 2.Bc4#
- 1...Bc3
- 2.Bc4#
- 1...Bd4
- 2.Bc4#
- 1...Sc1
- 2.Sb4#
- 1...Sg1
- 2.Sb4#
- 1...Sc3
- 2.Sb4#
- 1...Sg3
- 2.Sb4#
- 1...Sd4
- 2.Sb4#
- 1...Se6
- 2.Sb4#
- 2.Sf6#
- 2.Bc4#
- 1...Qxf2!
- threat
- 1.Be3?
- threat
- 2.Sb4#
- 2.Bc4#
- 2.Ra5#
- 1...Bxe5
- 2.Bc4#
- 1...Sxf4
- 2.Sb4#
- 1...Sxg6
- 2.Bc4#
- 1...Sxd7
- 2.Sb4#
- 2.Bc4#
- 1...gxf3
- 2.Sf6#
- 1...Qe1
- 2.Bc4#
- 1...Rbc1
- 2.Sb4#
- 1...Rdc1
- 2.Sb4#
- 1...Rd4
- 2.Ra5#
- 1...Ba1
- 2.Bc4#
- 1...Bc1
- 2.Bc4#
- 1...Ba3
- 2.Bc4#
- 1...Bc3
- 2.Bc4#
- 1...Bd4
- 2.Bc4#
- 1...Sc1
- 2.Sb4#
- 1...Sg1
- 2.Sb4#
- 1...Sc3
- 2.Sb4#
- 1...Sg3
- 2.Sb4#
- 1...Sd4
- 2.Sb4#
- 1...Se6
- 2.Sb4#
- 2.Sf6#
- 2.Bc4#
- 1...Qxf3!
- threat
- 1.Bf2?
- Keys
- 1.Qxg4!
- threat
- 2.Sf6#
- 1...Rxd4
- 2.Ra5#
- 1...Bxd4
- 2.Bc4#
- 1...Sxd4
- 2.Sb4#
- 1...Sxd7
- 2.Qe6#
- 1...Sh7
- 2.Qe6#
- threat
- 1.Qxg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(b);SBLOCK,XB(E)::R(D)
- B(d);P_PINP(I),SBLOCK,XB(E)::B(H)
- S(e);SBLOCK,XB(E)::S(A)
- S(h);SBLOCK::S(M)
- P(f);XP(B)::S(M)
- P(f);::S(M)
- Tries
- Try
- B(E);
- Threat
- DUALS(3)
- Vars
- B(d);P_PINP(I),XP(G)::B(H)
- S(e);XP(F)::S(A)
- S(h);XR(K)::B(H)
- Q(c);::B(H)
- R(a);::S(A)
- R(b);::S(A)
- R(b);::R(D)
- B(d);P_PINP(I)::B(H)
- S(e);::S(A)
- Refutation
- Q(c);XB(E)
- Try
- B(E);
- Threat
- DUALS(3)
- Vars
- B(d);P_PINP(I),XP(G)::B(H)
- S(e);XP(F)::S(A)
- S(h);XR(K)::B(H)
- P(f);XP(B)::S(M)
- Q(c);::B(H)
- R(a);::S(A)
- R(b);::S(A)
- R(b);::R(D)
- B(d);P_PINP(I)::B(H)
- S(e);::S(A)
- Refutation
- Q(c);XP(B)
- Try
- Actual
- Q(C);XP(f)
- Threat
- S(M)
- Vars
- R(b);SBLOCK,XB(E)::R(D)
- B(d);P_PINP(I),SBLOCK,XB(E)::B(H)
- S(e);SBLOCK,XB(E)::S(A)
- S(h);N_GUARD,XS(M)::QAB1(C)
- S(h);N_GUARD::QAB1(C)
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