MESON Chess Problem Database
Problem Display
PID: 250848 (1R6/3Np3/n4p1r/PNp2RP1/rBk1P3/4K1p1/nQ6/3b4 w - - 0 1)
Knuppert, Hugo
The Problemist, 1991
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra3+
- 2.Sxa3#
- 1...Rxb4
- 2.Sa3#
- 1...Sc1
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...S2xb4
- 2.Qc3#
- 1...S6xb4
- 2.Rxc5#
- 1...Sc7
- 2.Rxc5#
- 1...Sxb8
- 2.Rxc5#
- 1...cxb4
- 2.Sb6#
- 1...fxg5
- 2.Se5#
- 1...e5
- 2.Sd6#
- 1...e6
- 2.Sd6#
- 1...Ra3+
- Tries
- 1.Sc3?
- threat
- 2.Sb6#
- 1...Sxc3
- 2.Qxc3#
- 1...fxg5
- 2.Se5#
- 1...Bb3
- 2.Qe2#
- 1...Rxb4!
- threat
- 1.Sxc5?
- threat
- 2.Qd4#
- 1...Ra3+
- 2.Sxa3#
- 1...Sxc5
- 2.Rxc5#
- 1...Sc3
- 2.Qxc3#
- 1...e5
- 2.Sd6#
- 1...Sxb8!
- threat
- 1.Bd2?
- threat
- 2.Sb6#
- 1...Ra3+
- 2.Sxa3#
- 1...fxg5
- 2.Se5#
- 1...Rb4
- 2.Sa3#
- 1...S2b4
- 2.Qc3#
- 1...S6b4
- 2.Rxc5#
- 1...Bb3!
- threat
- 1.Ba3?
- threat
- 2.Sb6#
- 1...Rxa3+
- 2.Sxa3#
- 1...fxg5
- 2.Se5#
- 1...Bb3
- 2.Qe2#
- 1...S2b4
- 2.Qc3#
- 1...S6b4
- 2.Rxc5#
- 1...Rb4!
- threat
- 1.Bc3?
- threat
- 2.Sb6#
- 1...fxg5
- 2.Se5#
- 1...Rb4
- 2.Sa3#
- 1...Bb3
- 2.Qe2#
- 1...S6b4
- 2.Rxc5#
- 1...S2b4!
- threat
- 1.gxf6?
- threat
- 2.Se5#
- 1...Ra3+
- 2.Sxa3#
- 1...Sxb8
- 2.Rxc5#
- 1...cxb4
- 2.Sb6#
- 1...exf6
- 2.Sd6#
- 1...e5
- 2.Sd6#
- 2.Sxe5#
- 1...Bb3!
- threat
- 1.Sc3?
- Keys
- 1.Be1!
- threat
- 2.Sb6#
- 1...Ra3+
- 2.Sxa3#
- 1...fxg5
- 2.Se5#
- 1...Rb4
- 2.Sa3#
- 1...Bb3
- 2.Qe2#
- 1...S2b4
- 2.Qc3#
- 1...S6b4
- 2.Rxc5#
- threat
- 1.Be1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(d);CHECK,N_GUARD::S(F),XR(d)
- R(d);N_GUARD,XB(C)::S(F)
- S(b);N_GUARD::QAR1(A)
- S(b);N_GUARD::QAR1(A),XS(b)
- S(b);N_GUARD,XB(C)::QAR1(A)
- S(g);N_GUARD,XB(C)::R1(G),XP(f)
- S(g);N_GUARD::R1(G),XP(f)
- S(g);N_GUARD,XR(J)::R1(G),XP(f)
- P(f);XB(C)::S(I)
- P(h);N_GUARD,XP(H)::S(I)
- P(j);N_GUARD::S(F)
- Tries
- Try
- S(F);
- Threat
- S(I)
- Vars
- S(b);OGATE,XS(F)::QAR1(A),XS(b)
- P(h);N_GUARD,XP(H)::S(I)
- B(a);N_GUARD,SBLOCK::QAB(A)
- Refutation
- R(d);XB(C)
- Try
- S(I);XP(f)
- Threat
- QAR1(A)
- Vars
- R(d);CHECK,N_GUARD::S(F),XR(d)
- S(g);OGATE,XS(I)::R1(G),XS(g)
- S(b);N_GUARD::QAR1(A),XS(b)
- P(j);N_GUARD::S(F)
- Refutation
- S(g);XR(J)
- Try
- B(C);
- Threat
- S(I)
- Vars
- R(d);CHECK,N_GUARD::S(F),XR(d)
- P(h);N_GUARD,XP(H)::S(I)
- R(d);N_GUARD::S(F)
- S(b);N_GUARD::QAR1(A)
- S(g);N_GUARD::R1(G),XP(f)
- Refutation
- B(a);
- Try
- B(C);
- Threat
- S(I)
- Vars
- R(d);CHECK,XB(C)::S(F),XR(d)
- P(h);N_GUARD,XP(H)::S(I)
- B(a);N_GUARD,SBLOCK::QAB(A)
- S(b);N_GUARD::QAR1(A)
- S(g);N_GUARD::R1(G),XP(f)
- Refutation
- R(d);
- Try
- B(C);
- Threat
- S(I)
- Vars
- P(h);N_GUARD,XP(H)::S(I)
- R(d);N_GUARD::S(F)
- B(a);N_GUARD,SBLOCK::QAB(A)
- S(g);N_GUARD::R1(G),XP(f)
- Refutation
- S(b);
- Try
- P(H);XP(h)
- Threat
- S(I)
- Vars
- R(d);CHECK,N_GUARD::S(F),XR(d)
- S(g);N_GUARD,XR(J)::R1(G),XP(f)
- P(f);XB(C)::S(I)
- P(j);N_GUARD,XP(H)::S(F)
- Refutation
- B(a);
- Try
- Actual
- B(C);
- Threat
- S(I)
- Vars
- R(d);CHECK,N_GUARD::S(F),XR(d)
- P(h);N_GUARD,XP(H)::S(I)
- R(d);N_GUARD::S(F)
- B(a);N_GUARD,SBLOCK::QAB(A)
- S(b);N_GUARD::QAR1(A)
- S(g);N_GUARD::R1(G),XP(f)
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