MESON Chess Problem Database
Problem Display
PID: 162917 (K1N5/p1bpQ1pb/3n4/Np1k4/5R2/B4R1B/4P3/8 w - - 0 1)
Ernst, Manfred
Die Schwalbe, 2016
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxa5
- 2.Qxd6#
- 1...Bb6
- 2.Qxd6#
- 1...Bd8
- 2.Qxd6#
- 1...Bd3
- 2.Rxd3#
- 1...Bg8
- 2.Rd3#
- 1...Sc4
- 2.Qc5#
- 1...Se4
- 2.Rd3#
- 1...Sf5
- 2.Qe4#
- 1...Sf7
- 2.Qc5#
- 1...Sxc8
- 2.Qc5#
- 1...Se8
- 2.Qc5#
- 1...g6
- 2.Rd3#
- 1...Bxa5
- Tries
- 1.Sb6+?
- 1...Bxb6
- 2.Qxd6#
- 1...axb6!
- 1...Bxb6
- 1.Bxd6?
- threat
- 2.Qe5#
- 2.Qf7#
- 1...Bxd6
- 2.Qxd6#
- 1...Be4
- 2.Qxe4#
- 2.Qe5#
- 1...Bf5
- 2.Qe5#
- 1...Bg6
- 2.Qe5#
- 1...Bg8
- 2.Rd3#
- 2.Qg5#
- 2.Qe4#
- 2.Qe5#
- 1...Bxa5!
- threat
- 1.Bg2?
- threat
- 2.Rd3#
- 1...Bd3
- 2.Rxd3#
- 1...b4!
- threat
- 1.Be6+?
- 1...Ke5
- 2.Bb2#
- 2.Ba2#
- 2.Bb3#
- 2.Bc4#
- 2.Bf7#
- 2.Bg8#
- 1...dxe6!
- 1...Ke5
- 1.Re3?
- threat
- 2.Re5#
- 2.Qe5#
- 1...Bxa5
- 2.Qxd6#
- 1...Sxc8
- 2.Qc5#
- 2.Qf7#
- 1...Se4
- 2.Rd3#
- 1...Sc4
- 2.Qc5#
- 2.Qf7#
- 1...Sf5
- 2.Bg2#
- 2.Qc5#
- 2.Qe4#
- 2.Qf7#
- 1...Sb7
- 2.Qf7#
- 1...Sf7
- 2.Qc5#
- 2.Qxf7#
- 1...Se8
- 2.Qc5#
- 2.Qf7#
- 1...Be4!
- threat
- 1.Qf6?
- threat
- 2.Se7#
- 2.Rd4#
- 2.Qd4#
- 1...Bxa5
- 2.Se7#
- 2.Qxd6#
- 1...Sxc8
- 2.Rd4#
- 2.Qd4#
- 1...b4
- 2.Qd4#
- 1...Bb6
- 2.Se7#
- 2.Qxd6#
- 1...Bd8
- 2.Rd4#
- 2.Qd4#
- 2.Qxd6#
- 1...Be4
- 2.Se7#
- 1...Bf5
- 2.Se7#
- 2.Rd4#
- 1...Se4
- 2.Se7#
- 2.Rd3#
- 1...Sf5
- 2.e4#
- 1...gxf6!
- threat
- 1.Qe3?
- threat
- 2.Se7#
- 2.Rd4#
- 2.Qd4#
- 2.Qc5#
- 1...Bxa5
- 2.Se7#
- 2.Qc5#
- 1...Sxc8
- 2.Rd4#
- 2.Qd4#
- 2.Qc5#
- 1...Be4
- 2.Qc5#
- 1...Bb6
- 2.Se7#
- 1...Bd8
- 2.Rd4#
- 2.Qd4#
- 2.Qc5#
- 1...Bf5
- 2.Se7#
- 2.Rd4#
- 1...Sf5
- 2.Qe4#
- 1...Sb7
- 2.Se7#
- 2.Rd4#
- 2.Qd4#
- 1...b4
- 2.Se7#
- 2.Qd4#
- 1...Se4!
- threat
- 1.Qf7+?
- 1...Ke5
- 2.Bb2#
- 1...Sxf7!
- 1...Ke5
- 1.e4+?
- 1...Kd4
- 2.Qxg7#
- 1...Sxe4
- 2.Rd3#
- 1...Bxe4!
- 1...Kd4
- 1.Sb6+?
- Keys
- 1.Bb2!
- threat
- 2.Qe5#
- 1...Kc5
- 2.Qe5#
- 1...Bxa5
- 2.Qxd6#
- 1...Sxc8
- 2.Rd4#
- 1...Sc4
- 2.Rd4#
- 1...Se4
- 2.Rd3#
- 1...Sf5
- 2.e4#
- 1...Sb7
- 2.Rd4#
- 1...Sf7
- 2.Rd4#
- 1...Se8
- 2.Rd4#
- threat
- 1.Bb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- B(e);N_GUARD,XS(F)::QAR1(G),XS(c)
- B(e);N_GUARD::QAR1(G),XS(c)
- B(h);N_GUARD::R(C),XB(h)
- B(h);N_GUARD::R(C)
- S(c);OGATE::QAR1(G)
- S(c);S_CUTB(h)::R(C)
- S(c);N_GUARD,S_CUTB(h)::QAB1(G)
- S(c);OGATE,XS(I)::QAR1(G)
- P(g);S_CUTB(h)::R(C)
- Tries
- Try
- S(I);CHECK
- Vars
- B(e);XS(I)::QAR1(G),XS(c)
- Refutation
- P(d);XS(I)
- Try
- B(B);XS(c)
- Threat
- DUALS(2)
- Vars
- B(e);OGATE,XB(B)::QAR1(G),XB(e)
- B(h);::QAR1(G)
- Refutation
- B(e);XS(F)
- Try
- B(D);
- Threat
- B(D)+R(C),DCHECK
- Vars
- B(h);::B(D)+R(C),DCHECK,XB(h)
- Refutation
- P(a);
- Try
- B(D);CHECK
- Refutation
- P(f);XB(D)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- B(e);N_GUARD,XS(F)::QAR1(G),XS(c)
- S(c);S_CUTB(h)::R(C)
- S(c);N_GUARD::QAB(G)
- Refutation
- B(h);
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- P(a);::QAR1(G)
- B(h);::S(I)
- S(c);N_GUARD,S_CUTB(h)::P(A)
- Refutation
- P(g);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(4)
- Vars
- B(h);::QAR1(G)
- B(e);::S(I)
- S(c);N_GUARD,S_CUTB(h)::QAB1(G)
- Refutation
- S(c);
- Try
- Q(G);CHECK
- Vars
- K(b);P-FLIGHT::B(B)
- Refutation
- S(c);XQ(G)
- Try
- P(A);CHECK
- Vars
- K(b);P-FLIGHT::QAB(G),XP(g)
- S(c);XP(A)::R(C)
- Refutation
- B(h);XP(A)
- Try
- Actual
- B(B);
- Threat
- QAR1(G)
- Vars
- K(b);P-FLIGHT,P_SPINS(c)::QAR2(G)
- B(e);N_GUARD,XS(F)::QAR1(G),XS(c)
- S(c);XS(I)::R1(E)
- S(c);::R1(E)
- S(c);S_CUTB(h)::R(C)
- S(c);N_GUARD,S_CUTB(h)::P(A)
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