MESON Chess Problem Database
Problem Display
PID: 159547 (N5BQ/1Nb3rr/2KB2P1/1P5R/k6P/ppPp1p2/1R6/3q4 w - - 0 1)
Nievergelt, Andreas
Der Landbote, 1998
#2
12 + 9
| 15527 | schachkunst (1997-2010) (Hoffmann) | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qe2
- 2.Bxb3#
- 1...Qa1
- 2.Bxb3#
- 1...Qb1
- 2.Bxb3#
- 1...Qc1
- 2.Bxb3#
- 1...Qe1
- 2.Bxb3#
- 1...Qf1
- 2.Bxb3#
- 1...Qg1
- 2.Bxb3#
- 1...Qh1
- 2.Bxb3#
- 1...Qd2
- 2.Bxb3#
- 1...Rxg6
- 2.Qd4#
- 1...Rd7
- 2.Qd4#
- 1...Re7
- 2.Qd4#
- 1...Rf7
- 2.Qd4#
- 1...Rxg8
- 2.Qd4#
- 1...Ba5
- 2.Sc5#
- 1...Bb6
- 2.Sxb6#
- 1...Bxd6
- 2.Sb6#
- 1...Bb8
- 2.Sb6#
- 1...Qe2
- Tries
- 1.Rxb3?
- threat
- 2.Rxa3#
- 2.Rb4#
- 1...Bxd6
- 2.Sb6#
- 1...Qa1
- 2.Rb4#
- 1...Qb1
- 2.Rxa3#
- 1...Qc1
- 2.Rb4#
- 1...Ba5
- 2.Sc5#
- 2.Rxa3#
- 1...a2
- 2.Ra3#
- 1...Qxb3!
- threat
- 1.Rc5?
- threat
- 2.Rc4#
- 1...Rxh4
- 2.Qxh4#
- 1...Bxd6
- 2.Sb6#
- 1...Ba5!
- threat
- 1.Rd5?
- threat
- 2.Rd4#
- 1...Rxh4
- 2.Qxh4#
- 1...Bxd6
- 2.Sb6#
- 1...Ba5
- 2.Sc5#
- 1...Bb6
- 2.Sxb6#
- 1...Qg1!
- threat
- 1.Re5?
- threat
- 2.Re4#
- 1...Rxh4
- 2.Qxh4#
- 1...Bxd6
- 2.Sb6#
- 1...Qe2
- 2.Bxb3#
- 1...Qe1
- 2.Bxb3#
- 1...Qg1
- 2.Bxb3#
- 1...Ba5
- 2.Sc5#
- 1...Bb6
- 2.Sxb6#
- 1...Re7!
- threat
- 1.Rg5?
- threat
- 2.Rg4#
- 1...Rxg6
- 2.Qd4#
- 1...Rxh4
- 2.Qxh4#
- 1...Bxd6
- 2.Sb6#
- 1...Qe2
- 2.Bxb3#
- 1...Qc1
- 2.Bxb3#
- 1...Qe1
- 2.Bxb3#
- 1...Qg1
- 2.Bxb3#
- 1...Qd2
- 2.Bxb3#
- 1...Re7
- 2.Qd4#
- 1...Rf7
- 2.Qd4#
- 1...Ba5
- 2.Sc5#
- 1...Bb6
- 2.Sxb6#
- 1...f2!
- threat
- 1.Qxg7?
- threat
- 2.Qd4#
- 1...Bxd6
- 2.Sb6#
- 1...Qg1
- 2.Bxb3#
- 1...Ba5
- 2.Sc5#
- 1...Bb6
- 2.Sxb6#
- 1...Rxg7!
- threat
- 1.b6?
- threat
- 2.Ra5#
- 1...Bxb6
- 2.Sxb6#
- 1...Rxh5!
- threat
- 1.Rxb3?
- Keys
- 1.Rf5!
- threat
- 2.Rf4#
- 1...Rxh4
- 2.Qxh4#
- 1...Bxd6
- 2.Sb6#
- 1...Qe2
- 2.Bxb3#
- 1...Qc1
- 2.Bxb3#
- 1...Qe1
- 2.Bxb3#
- 1...Qg1
- 2.Bxb3#
- 1...Qd2
- 2.Bxb3#
- 1...Re7
- 2.Qd4#
- 1...Rf7
- 2.Qd4#
- 1...Ba5
- 2.Sc5#
- 1...Bb6
- 2.Sxb6#
- threat
- 1.Rf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::B(K),XP(c)
- Q(a);N_GUARD,P_PINP(B)::B(K),XP(c)
- R(h);OGATE,P_PINB(G),XP(H)::QAR(L)
- R(h);OGATE::QAR(L)
- R(h);OGATE,XB(K)::QAR(L)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::S(J),XB(g)
- B(g);N_GUARD,XB(G)::S(J)
- B(g);N_GUARD::S(J)
- Tries
- Try
- R(A);XP(c)
- Threat
- DUALS(2)
- Vars
- B(g);N_GUARD,XB(G)::S(J)
- Q(a);::R1(A)
- Q(a);::R1(A),XP(b)
- Q(a);P_PINP(B)::R1(A)
- P(b);::R1(A)
- Refutation
- Q(a);XR(A)
- Try
- R(E);
- Threat
- R(E)
- Vars
- R(i);OGATE,XP(C)::QAB1(L),XR(i)
- B(g);N_GUARD,XB(G)::S(J)
- Refutation
- B(g);
- Try
- R(E);
- Threat
- R(E)
- Vars
- R(i);OGATE,XP(C)::QAB1(L),XR(i)
- B(g);N_GUARD,XB(G)::S(J)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::S(J),XB(g)
- Refutation
- Q(a);
- Try
- R(E);
- Threat
- R(E)
- Vars
- R(i);OGATE,XP(C)::QAB1(L),XR(i)
- B(g);N_GUARD,XB(G)::S(J)
- Q(a);N_GUARD::B(K),XP(c)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::S(J),XB(g)
- Refutation
- R(h);
- Try
- R(E);
- Threat
- R(E)
- Vars
- R(h);OGATE,P_PINB(G),XP(H)::QAR(L)
- R(i);OGATE,XP(C)::QAB1(L),XR(i)
- B(g);N_GUARD,XB(G)::S(J)
- Q(a);N_GUARD::B(K),XP(c)
- Q(a);N_GUARD,P_PINP(B)::B(K),XP(c)
- R(h);OGATE::QAR(L)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::S(J),XB(g)
- Refutation
- P(e);
- Try
- Q(L);XR(h)
- Threat
- QAR(L)
- Vars
- B(g);N_GUARD,XB(G)::S(J)
- Q(a);N_GUARD::B(K),XP(c)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::S(J),XB(g)
- Refutation
- R(i);XQ(L)
- Try
- P(D);
- Threat
- R1(E)
- Vars
- B(g);XP(D)::S(J),XB(g)
- Refutation
- R(i);XR(E)
- Try
- Actual
- R(E);
- Threat
- R(E)
- Vars
- R(i);OGATE,XP(C)::QAB1(L),XR(i)
- B(g);N_GUARD,XB(G)::S(J)
- Q(a);N_GUARD::B(K),XP(c)
- Q(a);N_GUARD,P_PINP(B)::B(K),XP(c)
- R(h);OGATE::QAR(L)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::S(J),XB(g)
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