MESON Chess Problem Database
Problem Display
PID: 53080 (1nNk4/1P1bp3/N7/2pR1R1B/1Bp5/2b4K/5Q2/8 w - - 0 1)
Ellerman, Arnoldo
1st Prize, Tijdschrift vd NSB, 1919
#2
9 + 7
| 268 | Chess Life | 1953 |
| 56 | The Problemist | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Ba5#
- 1...Bb2
- 2.Ba5#
- 1...Bd4
- 2.Ba5#
- 1...Bf6
- 2.Ba5#
- 1...Bg7
- 2.Ba5#
- 1...Bh8
- 2.Ba5#
- 1...cxb4
- 2.Qb6#
- 1...e5
- 2.Qh4#
- 1...e6
- 2.Rf8#
- 1...Ba1
- Tries
- 1.Kg2?
- threat
- 2.Rf8#
- 1...Bf6
- 2.Ba5#
- 1...Bg7
- 2.Ba5#
- 1...Sxa6!
- threat
- 1.Sxc5?
- threat
- 2.Se6#
- 1...e6
- 2.Sxe6#
- 1...Kc7!
- threat
- 1.Sc7?
- threat
- 2.Se6#
- 1...e6
- 2.Sxe6#
- 1...Kxc7!
- threat
- 1.Bxc5?
- threat
- 2.Bb6#
- 2.Bxe7#
- 1...Bb4
- 2.Bb6#
- 1...Bd4
- 2.Bxe7#
- 1...Ba5
- 2.Bxe7#
- 1...Be5
- 2.Bxe7#
- 1...Bf6
- 2.Bb6#
- 1...Sc6
- 2.Bb6#
- 1...e5
- 2.Bb6#
- 2.Be7#
- 2.Qh4#
- 1...e6
- 2.Bb6#
- 2.Be7#
- 2.Rf8#
- 1...Sxa6!
- threat
- 1.Qg1?
- threat
- 2.Qg8#
- 1...Bg7
- 2.Ba5#
- 1...Sxa6!
- threat
- 1.Qg3?
- threat
- 2.Qc7#
- 2.Qg8#
- 1...Be5
- 2.Qg8#
- 1...Bg7
- 2.Ba5#
- 2.Qc7#
- 1...e5
- 2.Qh4#
- 2.Qg5#
- 2.Qg8#
- 1...Sxa6!
- threat
- 1.Qxc5?
- threat
- 2.Qb6#
- 2.Qxe7#
- 2.Qa5#
- 2.Qc7#
- 1...Bxb4
- 2.Qb6#
- 2.Qc7#
- 1...Sc6
- 2.Qb6#
- 1...Bd4
- 2.Ba5#
- 2.Qxe7#
- 2.Qc7#
- 1...Be5
- 2.Qxe7#
- 1...Bf6
- 2.Ba5#
- 2.Qb6#
- 2.Qa5#
- 2.Qc7#
- 1...e5
- 2.Qb6#
- 2.Qe7#
- 2.Qf8#
- 2.Qa5#
- 2.Qc7#
- 1...e6
- 2.Rf8#
- 2.Qb6#
- 2.Qe7#
- 2.Qf8#
- 2.Qa5#
- 2.Qc7#
- 1...Sxa6!
- threat
- 1.Qg2?
- threat
- 2.Qg8#
- 1...Bg7
- 2.Ba5#
- 1...Sxa6!
- threat
- 1.Kg2?
- Keys
- 1.Qd4!
- 1...Bxb4
- 2.Qh8#
- 1...Bxd4
- 2.Ba5#
- 1...Sxa6
- 2.Rxd7#
- 1...cxb4
- 2.Qb6#
- 1...cxd4
- 2.Bxe7#
- 1...Ba1
- 2.Ba5#
- 1...Be1
- 2.Qh8#
- 1...Bb2
- 2.Ba5#
- 1...Bd2
- 2.Qh8#
- 1...Sc6
- 2.Rxd7#
- 1...e5
- 2.Qh4#
- 1...e6
- 2.Rf8#
- 1...Bxb4
- 1.Qd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- B(a);N_GUARD::B(C)
- P(c);OGATE,XB(C)::QAB(A)
- P(e);OGATEB::QAB(A)
- P(e);N_PINR(E)::R(E)
- Tries
- Try
- K(B);N_SPINR(E),S_FLIGHT
- Threat
- R(E)
- Vars
- B(a);N_GUARD::B(C)
- Refutation
- S(f);XS(G)
- Try
- S(G);XP(c)
- Threat
- S(G)
- Vars
- P(e);N_PINR(E)::S(G),XP(e)
- Refutation
- K(g);N_SPINB(d),S_FLIGHT
- Try
- S(G);
- Threat
- S(G)
- Vars
- P(e);N_PINR(E)::S(G),XP(e)
- Refutation
- K(g);N_SPINB(d),S_FLIGHT,XS(G)
- Try
- B(C);XP(c)
- Threat
- DUALS(2)
- Vars
- B(a);::B(C)
- B(a);::B(C),XP(e)
- S(f);::B(C)
- Refutation
- S(f);XS(G)
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- B(a);N_GUARD::B(C)
- Refutation
- S(f);XS(G)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(a);::QAR(A)
- Refutation
- S(f);XS(G)
- Try
- Q(A);XP(c)
- Threat
- DUALS(4)
- Vars
- S(f);::QAB(A)
- B(a);::QAB1(A),XP(e)
- Refutation
- S(f);XS(G)
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- B(a);N_GUARD::B(C)
- Refutation
- S(f);XS(G)
- Try
- Actual
- Q(A);
- Vars
- B(a);N_GUARD,XB(C)::QAR(A)
- B(a);N_GUARD,XQ(A)::B(C)
- S(f);N_GUARD,XS(G)::R1(D),XB(d)
- P(c);OGATE,XB(C)::QAB(A)
- P(c);OGATE,XQ(A)::B(C),XP(e)
- B(a);N_GUARD::B(C)
- B(a);N_GUARD::QAR(A)
- S(f);N_GUARD::R1(D),XB(d)
- P(e);OGATEB::QAB(A)
- P(e);N_PINR(E)::R(E)
Developed and maintained by Brian Stephenson.
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