MESON Chess Problem Database
Problem Display
PID: 29883 (7r/4pq2/2p1p3/2K1kpB1/5R2/NQp3N1/4bP2/r2n4 w - - 0 1)
Zirkwitz, Thorsten
Comm., Brazil TT, 1985
#2
7 + 11
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qb8#
- 1...Rh2
- 2.Qb8#
- 1...Rh3
- 2.Qb8#
- 1...Rh4
- 2.Qb8#
- 1...Rh5
- 2.Qb8#
- 1...Rh6
- 2.Qb8#
- 1...Rh7
- 2.Qb8#
- 1...Rb8
- 2.Qxb8#
- 1...Bf3
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Bg4
- 2.Sc4#
- 1...Bh5
- 2.Sc4#
- 1...Sb2
- 2.Qxc3#
- 1...Sxf2
- 2.Qxc3#
- 1...Se3
- 2.Qxc3#
- 1...Rh1
- Tries
- 1.Sxe2?
- threat
- 2.Sc4#
- 1...Sb2
- 2.Qxc3#
- 1...Se3
- 2.Qxc3#
- 1...Rxa3!
- threat
- 1.Rb4?
- threat
- 2.f4#
- 1...Sxf2
- 2.Qxc3#
- 1...Bf3
- 2.Sc4#
- 1...f4
- 2.Re4#
- 1...Rh4!
- threat
- 1.Rc4?
- threat
- 2.f4#
- 1...Sxf2
- 2.Qxc3#
- 1...Rh4
- 2.Qb8#
- 1...f4
- 2.Re4#
- 1...Bf3!
- threat
- 1.Rd4?
- threat
- 2.f4#
- 1...Rh4
- 2.Qb8#
- 1...Bf3
- 2.Sc4#
- 1...f4
- 2.Re4#
- 1...Sxf2!
- threat
- 1.Rh4?
- threat
- 2.f4#
- 1...Rxh4
- 2.Qb8#
- 1...Sxf2
- 2.Qxc3#
- 1...Bf3
- 2.Sc4#
- 1...f4!
- threat
- 1.Rxf5+?
- 1...exf5
- 2.f4#
- 1...Qxf5!
- 1...exf5
- 1.Qa4?
- threat
- 2.Qd4#
- 1...Bc4
- 2.Sxc4#
- 1...Rd8!
- threat
- 1.Qc4?
- threat
- 2.Qd4#
- 1...Bxc4
- 2.Sxc4#
- 1...Rd8!
- threat
- 1.Qb4?
- threat
- 2.Qd4#
- 1...Bc4
- 2.Sxc4#
- 1...Rd8!
- threat
- 1.Sxe2?
- Keys
- 1.Ra4!
- threat
- 2.f4#
- 1...Sxf2
- 2.Qxc3#
- 1...Rh4
- 2.Qb8#
- 1...Bf3
- 2.Sc4#
- 1...f4
- 2.Re4#
- threat
- 1.Ra4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- R(k);N_GUARD::QAB(C)
- R(k);N_GUARD::QAB(C),XR(k)
- B(c);N_GUARD::S(B)
- B(c);N_GUARD::S(B),XB(c)
- S(b);N_GUARD::QAB(C),XP(d)
- S(b);N_GUARD,XP(A)::QAB(C),XP(d)
- Tries
- Try
- S(D);XB(c)
- Threat
- S(B)
- Vars
- S(b);N_GUARD::QAB(C),XP(d)
- Refutation
- R(a);XS(B)
- Try
- R(E);
- Threat
- P(A)
- Vars
- S(b);N_GUARD,XP(A)::QAB(C),XP(d)
- B(c);N_GUARD::S(B)
- P(f);N_GUARD::R1(E)
- Refutation
- R(k);
- Try
- R(E);
- Threat
- P(A)
- Vars
- S(b);N_GUARD,XP(A)::QAB(C),XP(d)
- R(k);N_GUARD::QAB(C)
- P(f);N_GUARD::R1(E)
- Refutation
- B(c);
- Try
- R(E);
- Threat
- P(A)
- Vars
- R(k);N_GUARD::QAB(C)
- B(c);N_GUARD::S(B)
- P(f);N_GUARD::R1(E)
- Refutation
- S(b);XP(A)
- Try
- R(E);
- Threat
- P(A)
- Vars
- R(k);N_GUARD,XR(E)::QAB(C)
- S(b);N_GUARD,XP(A)::QAB(C),XP(d)
- B(c);N_GUARD::S(B)
- Refutation
- P(f);
- Try
- R(E);CHECK,XP(f)
- Vars
- P(h);XR(E)::P(A)
- Refutation
- Q(j);XR(E)
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- B(c);N_GUARD::S(B),XB(c)
- Refutation
- R(k);
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- B(c);XQ(C)::S(B),XB(c)
- Refutation
- R(k);
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- B(c);N_GUARD::S(B),XB(c)
- Refutation
- R(k);
- Try
- Actual
- R(E);
- Threat
- P(A)
- Vars
- S(b);N_GUARD,XP(A)::QAB(C),XP(d)
- R(k);N_GUARD::QAB(C)
- B(c);N_GUARD::S(B)
- P(f);N_GUARD::R1(E)
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