MESON Chess Problem Database
Problem Display
PID: 236205 (5n2/3R2b1/K1p2p1r/2kN1pP1/PpB2Qn1/1p2N3/brP2p2/8 w - - 0 1)
Hoffmann, Fritz
Schweizerische Schachzeitung, 1988
#2
9 + 13
SOLUTION
- SOUND
- Sets
- 1...cxd5
- 2.Rc7#
- 1...cxd5
- Tries
- 1.Sb6?
- threat
- 2.Qd6#
- 2.Qd4#
- 1...Sxd7
- 2.Sxd7#
- 1...Se5
- 2.Qd4#
- 1...Se6
- 2.Qd6#
- 1...fxg5!
- threat
- 1.Sc7?
- threat
- 2.Qd6#
- 2.Qd4#
- 1...Sxe3
- 2.Qd4#
- 1...Sxd7
- 2.Se6#
- 1...Se5
- 2.Qd4#
- 1...Se6
- 2.Sxe6#
- 2.Qd6#
- 1...fxg5!
- threat
- 1.Bf1?
- threat
- 2.Qxb4#
- 2.Qc4#
- 1...Rxc2
- 2.Qxb4#
- 1...Sxe3
- 2.Qxe3#
- 2.Qxb4#
- 1...Sxd7
- 2.Qxb4#
- 1...cxd5
- 2.Rc7#
- 1...Se5
- 2.Qxb4#
- 1...bxc2!
- threat
- 1.Be2?
- threat
- 2.Qxb4#
- 2.Qc4#
- 1...Rxc2
- 2.Qxb4#
- 1...Sxe3
- 2.Qxe3#
- 2.Qxb4#
- 1...Sxd7
- 2.Qxb4#
- 1...cxd5
- 2.Rc7#
- 1...Se5
- 2.Qxb4#
- 1...bxc2!
- threat
- 1.Bd3?
- threat
- 2.Qxb4#
- 2.Qc4#
- 1...Rxc2
- 2.Qxb4#
- 1...Sxe3
- 2.Qxe3#
- 2.Qxb4#
- 1...Sxd7
- 2.Qxb4#
- 1...cxd5
- 2.Rc7#
- 1...Se5
- 2.Qxb4#
- 1...bxc2!
- threat
- 1.Bb5?
- threat
- 2.Qxb4#
- 2.Qc4#
- 1...Rxc2
- 2.Qxb4#
- 1...Sxe3
- 2.Qxe3#
- 2.Qxb4#
- 1...Sxd7
- 2.Qxb4#
- 1...cxb5
- 2.Rc7#
- 1...cxd5
- 2.Rxd5#
- 2.Rc7#
- 1...f1Q
- 2.Qxb4#
- 1...f1B
- 2.Qxb4#
- 1...Se5
- 2.Qxb4#
- 1...bxc2!
- threat
- 1.c3?
- threat
- 2.Qd6#
- 2.Qd4#
- 2.cxb4#
- 1...Sxe3
- 2.Qd4#
- 2.cxb4#
- 1...Sxd7
- 2.cxb4#
- 1...cxd5
- 2.Rc7#
- 2.Qd6#
- 2.Qc7#
- 1...fxg5
- 2.cxb4#
- 1...Rd2
- 2.Qd6#
- 2.cxb4#
- 1...Se5
- 2.Qd4#
- 2.cxb4#
- 1...Se6
- 2.Qd6#
- 2.cxb4#
- 1...bxc3!
- threat
- 1.Sb6?
- Keys
- 1.Sxf6!
- threat
- 2.Qd6#
- 2.Qd4#
- 1...Rxf6
- 2.Qd4#
- 1...Bxf6
- 2.Qd6#
- 1...Sxe3
- 2.Qd4#
- 1...Sxd7
- 2.Sxd7#
- 1...Se5
- 2.Qxe5#
- 2.Qd4#
- 1...Se6
- 2.Qd6#
- threat
- 1.Sxf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- P(i);OGATEB,XS(F)::R(I)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(m);XR(I)::S(F),XS(m)
- S(f);::QAB1(E)
- S(m);::QAB1(E)
- Refutation
- P(j);XP(G)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(f);XS(B)::QAB1(E)
- S(m);N_GUARD,XR(I)::S(F)
- S(f);::QAB1(E)
- Refutation
- P(j);XP(G)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(b);XP(A)::QAB1(E),XP(e)
- S(m);XR(I)::QAB1(E),XP(e)
- P(i);OGATEB,XS(F)::R(I)
- S(f);::QAB1(E),XP(e)
- Refutation
- P(d);XP(A)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(b);XP(A)::QAB1(E),XP(e)
- S(m);XR(I)::QAB1(E),XP(e)
- P(i);OGATEB,XS(F)::R(I)
- S(f);::QAB1(E),XP(e)
- Refutation
- P(d);XP(A)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(b);XP(A)::QAB1(E),XP(e)
- S(m);XR(I)::QAB1(E),XP(e)
- P(i);OGATEB,XS(F)::R(I)
- S(f);::QAB1(E),XP(e)
- Refutation
- P(d);XP(A)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(b);XP(A)::QAB1(E),XP(e)
- S(m);XR(I)::QAB1(E),XP(e)
- P(i);OGATEB,XB(D)::R(I)
- P(c);P_PINB(D)::QAB1(E),XP(e)
- S(f);::QAB1(E),XP(e)
- Refutation
- P(d);XP(A)
- Try
- P(A);
- Threat
- DUALS(3)
- Vars
- S(m);XR(I)::P(A),XP(e)
- P(j);XP(G)::P(A),XP(e)
- Refutation
- P(e);XP(A)
- Try
- Actual
- S(F);XP(j)
- Threat
- DUALS(2)
- Vars
- R(k);XS(F)::QAB1(E)
- B(l);XS(F)::QAB1(E)
- S(f);XS(B)::QAB1(E)
- S(m);XR(I)::S(F),XS(m)
- S(m);::QAB1(E)
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