MESON Chess Problem Database
Problem Display
PID: 41927 (4nR1K/r2b2P1/1b2p2Q/2P1kN1p/1P1RNp2/5r2/2B2p2/B7 w - - 0 1)
Degener, Udo
Papack, Daniel
3rd Prize, idee & form, 1990
#2
11 + 10
| 4827 | FIDE Album (1989-1991) | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Sd6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sc7
- 2.Qf6#
- 1...Sxg7
- 2.Qxg7#
- 2.Qf6#
- 1...Sd6
- Tries
- 1.Sd2?
- threat
- 2.Sxf3#
- 2.Sc4#
- 1...f1B
- 2.Sxf3#
- 1...f1R
- 2.Sc4#
- 1...Rfa3
- 2.Sc4#
- 2.Qxf4#
- 1...Rb3
- 2.Sc4#
- 2.Qxf4#
- 1...Rc3
- 2.Qxf4#
- 1...Rd3
- 2.Sc4#
- 2.Qxf4#
- 1...Re3
- 2.Sc4#
- 2.Qxf4#
- 1...Rg3
- 2.Sc4#
- 2.Qxf4#
- 1...Rh3
- 2.Sc4#
- 2.Qxf4#
- 1...Raa3
- 2.Sc4#
- 1...Bb5
- 2.Sxf3#
- 1...Bc6
- 2.Sc4#
- 1...Sd6
- 2.Sxf3#
- 2.Qf6#
- 1...f1Q!
- threat
- 1.Sc3?
- threat
- 2.Re4#
- 1...Rxc3
- 2.Qxf4#
- 1...exf5
- 2.Rd5#
- 1...Re3
- 2.Qxf4#
- 1...Sd6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Bc6!
- threat
- 1.Sg5?
- threat
- 2.Sxf3#
- 2.Sf7#
- 1...f1Q
- 2.Sf7#
- 1...f1R
- 2.Sf7#
- 1...Rfa3
- 2.Sf7#
- 1...Rb3
- 2.Sf7#
- 1...Rc3
- 2.Sf7#
- 1...Re3
- 2.Sf7#
- 1...Rg3
- 2.Sf7#
- 1...Rh3
- 2.Sf7#
- 1...Raa3
- 2.Sf7#
- 1...Ba4
- 2.Sxf3#
- 2.Rd3#
- 2.Qxe6#
- 1...Bb5
- 2.Sxf3#
- 2.Qxe6#
- 1...Bc6
- 2.Qxe6#
- 1...Bc8
- 2.Sxf3#
- 1...Sd6
- 2.Sxf3#
- 2.Qf6#
- 1...Rd3!
- threat
- 1.Sed6?
- threat
- 2.Sc4#
- 2.Sf7#
- 1...Sxd6
- 2.Qf6#
- 1...f1Q
- 2.Sf7#
- 1...f1B
- 2.Sf7#
- 1...Rc3
- 2.Sf7#
- 2.Qxf4#
- 1...Rd3
- 2.Sc4#
- 2.Qxf4#
- 1...Ba4
- 2.Sc4#
- 2.Rd3#
- 1...Bc6
- 2.Sc4#
- 1...Bc8
- 2.Sc4#
- 1...Bb5!
- threat
- 1.Sh4?
- threat
- 2.Sxf3#
- 2.Sg6#
- 2.Qg5#
- 2.Qxh5#
- 1...Rxa1
- 2.Sxf3#
- 1...Sxg7
- 2.Sxf3#
- 2.Sg6#
- 2.Qxg7#
- 2.Qf6#
- 1...f1Q
- 2.Sg6#
- 2.Qg5#
- 2.Qxh5#
- 1...f1R
- 2.Sg6#
- 2.Qg5#
- 2.Qxh5#
- 1...Rfa3
- 2.Sg6#
- 2.Qxf4#
- 2.Qg5#
- 2.Qxh5#
- 1...Rb3
- 2.Sg6#
- 2.Qxf4#
- 2.Qg5#
- 2.Qxh5#
- 1...Rd3
- 2.Sg6#
- 2.Qxf4#
- 2.Qg5#
- 2.Qxh5#
- 1...Re3
- 2.Sg6#
- 2.Qxf4#
- 2.Qg5#
- 2.Qxh5#
- 1...Rg3
- 2.Qxf4#
- 1...Rh3
- 2.Sg6#
- 2.Qxf4#
- 2.Qg5#
- 2.Qxh5#
- 1...Raa3
- 2.Sg6#
- 2.Qg5#
- 2.Qxh5#
- 1...Bd8
- 2.Sxf3#
- 2.Sg6#
- 1...Sd6
- 2.Sxf3#
- 2.Sg6#
- 2.Qf6#
- 1...Sf6
- 2.Qg5#
- 2.Qxf6#
- 1...Rc3!
- threat
- 1.Rd1+?
- 1...Rc3
- 2.Bxc3#
- 1...Rxa1!
- 1...Rc3
- 1.Rd2+?
- 1...Rc3
- 2.Bxc3#
- 1...Rxa1!
- 1...Rc3
- 1.Rd6+?
- 1...Rc3
- 2.Bxc3#
- 1...Rxa1!
- 1...Rc3
- 1.Rxd7+?
- 1...Rc3
- 2.Bxc3#
- 1...Rxa1!
- 1...Rc3
- 1.Rxe8?
- threat
- 2.Qf6#
- 1...Kxf5
- 2.Qg5#
- 2.Qxh5#
- 1...Bd8!
- threat
- 1.Sd2?
- Keys
- 1.Sf6!
- threat
- 2.Rd5#
- 1...Rxa1
- 2.Sxd7#
- 1...Sxf6
- 2.Qxf6#
- 1...exf5
- 2.Re4#
- 1...Rc3
- 2.Qxf4#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- S(j);N_GUARD::QAB1(H)
- S(j);N_GUARD::QAB1(H),XS(j)
- Tries
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- P(a);::S(E),XR(b)
- P(a);::S(E)
- R(b);N_GUARD::QAB1(H),XP(c)
- R(h);::S(E)
- B(i);::S(E),XR(b)
- B(i);::S(E)
- Refutation
- P(a);
- Try
- S(E);
- Threat
- R1(D)
- Vars
- R(b);N_GUARD,XS(E)::QAB1(H),XP(c)
- P(g);N_GUARD,XS(G)::R1(D)
- R(b);N_GUARD::QAB1(H),XP(c)
- S(j);N_GUARD::QAB1(H)
- S(j);N_GUARD::QAB1(H),XS(j)
- Refutation
- B(i);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- P(a);::S(E)
- R(b);::S(E)
- R(h);::S(E)
- B(i);N_GUARD::QAR1(H),XP(g)
- B(i);::S(E),XR(b)
- Refutation
- R(b);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(j);N_GUARD,XS(E)::QAB1(H)
- P(a);::S(E)
- B(i);::S(E)
- Refutation
- B(i);
- Try
- S(G);
- Threat
- DUALS(4)
- Vars
- R(h);XB(A)::S(G),XR(b)
- R(b);N_GUARD::QAB1(H),XP(c)
- Refutation
- R(b);
- Try
- R(D);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::B(A),XR(b)
- Refutation
- R(h);XB(A)
- Try
- R(D);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::B(A),XR(b)
- Refutation
- R(h);XB(A)
- Try
- R(D);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::B(A),XR(b)
- Refutation
- R(h);XB(A)
- Try
- R(D);CHECK,XB(i)
- Vars
- R(b);N_GUARD,P_SPINR(b)::B(A),XR(b)
- Refutation
- R(h);XB(A)
- Try
- R(J);P_PINP(g),XS(j)
- Threat
- QAB1(H)
- Refutation
- B(f);
- Try
- Actual
- S(E);
- Threat
- B(A)+R(D),DCHECK
- Vars
- R(h);N_GUARD,XB(A)::S(E),XB(i)
- S(j);OGATE,XS(E)::QAB1(H),XS(j)
- P(g);SBLOCK,XS(G)::B(A)+R(D),DCHECK
- R(b);N_GUARD::QAB1(H),XP(c)
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