MESON Chess Problem Database
Problem Display
PID: 70342 (1K6/1PN1Qn1p/5Bb1/N4P2/1PBP3q/1rk3bR/R2pP3/n5r1 w - - 0 1)
Ellerman, Arnoldo
Chess, 1950
#2
13 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxb4
- 2.Qe3#
- 1...Se5
- 2.Sb5#
- 1...Sd6
- 2.Sd5#
- 1...Rxb4
- Tries
- 1.Ka8?
- threat
- 2.Sb5#
- 2.Sd5#
- 1...Qxf6
- 2.Sb5#
- 1...Rxb4
- 2.Sd5#
- 2.Qe3#
- 1...Se5
- 2.Sb5#
- 1...Sd6
- 2.Sd5#
- 1...Qe4
- 2.Sb5#
- 1...Rb2!
- threat
- 1.Bxb3?
- threat
- 2.Qc5#
- 1...Se5
- 2.Sb5#
- 1...Sd6
- 2.Sd5#
- 1...Sxb3!
- threat
- 1.Bb5?
- threat
- 2.Qc5#
- 1...Rxb4
- 2.Qe3#
- 1...Sd6
- 2.Sd5#
- 1...Se5!
- threat
- 1.Bd5?
- threat
- 2.Qc5#
- 1...Rxb4
- 2.Qe3#
- 1...Se5
- 2.Sb5#
- 1...Sd6!
- threat
- 1.Be6?
- threat
- 2.Qc5#
- 1...Se5
- 2.Sb5#
- 1...Sd6
- 2.Sd5#
- 1...Rxb4!
- threat
- 1.Bxf7?
- threat
- 2.Qc5#
- 1...Rxb4
- 2.Qe3#
- 1...Bxf7!
- threat
- 1.Be5?
- threat
- 2.Sb5#
- 2.Sd5#
- 1...Qxe7
- 2.Sd5#
- 1...Rxb4
- 2.Sd5#
- 1...Sxe5
- 2.Sb5#
- 1...Sd6
- 2.Sd5#
- 1...Qe4
- 2.Sb5#
- 1...Rb2!
- threat
- 1.Rxg3+?
- 1...Rxg3
- 2.Sb5#
- 2.Sd5#
- 1...Qxg3!
- 1...Rxg3
- 1.Qc5?
- threat
- 2.Bxb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Be6#
- 2.Bxf7#
- 1...Rb2
- 2.Bb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Be6#
- 2.Bxf7#
- 1...Rbb1
- 2.Bb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Be6#
- 2.Bxf7#
- 1...Ra3
- 2.Bb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Be6#
- 2.Bxf7#
- 1...Se5
- 2.Sb5#
- 2.Sd5#
- 1...Sg5
- 2.Bxb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Sd6
- 2.Sd5#
- 1...Sh6
- 2.Bxb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Sd8
- 2.Bxb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Sh8
- 2.Bxb3#
- 2.Bd3#
- 2.Bb5#
- 2.Bd5#
- 2.Ba6#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Rxb4!
- threat
- 1.Qd6?
- threat
- 2.Sb5#
- 2.Sd5#
- 1...Qxf6
- 2.Sb5#
- 1...Rxb4
- 2.Sd5#
- 1...Sxd6
- 2.Sd5#
- 1...Qe4
- 2.Sb5#
- 1...Se5
- 2.Sb5#
- 1...Rb2!
- threat
- 1.Ka8?
- Keys
- 1.Ba6!
- threat
- 2.Qc5#
- 1...Rxb4
- 2.Qe3#
- 1...Se5
- 2.Sb5#
- 1...Sd6
- 2.Sd5#
- threat
- 1.Ba6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(d);P_PINP(J),SBLOCK,XP(D)::QAR2(L)
- S(i);N_PINS(K)::S(K)
- Tries
- Try
- K(M);N_SPINS(K),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(g);XB(I)::S(K)
- S(i);::S(K)
- Q(g);P_PINP(J)::S(K)
- Refutation
- R(d);
- Try
- B(E);XR(d)
- Threat
- QAR2(L)
- Vars
- S(i);N_PINS(K)::S(K)
- Refutation
- S(a);XB(E)
- Try
- B(E);
- Threat
- QAR2(L)
- Vars
- R(d);SBLOCK,XP(D)::QAR2(L)
- S(i);N_PINS(K)::S(K)
- Refutation
- S(i);N_PINS(K)
- Try
- B(E);
- Threat
- QAR2(L)
- Vars
- R(d);P_PINP(J),SBLOCK,XP(D)::QAR2(L)
- S(i);N_PINS(K)::S(K)
- Refutation
- S(i);N_PINS(K)
- Try
- B(E);
- Threat
- QAR2(L)
- Vars
- S(i);N_PINS(K)::S(K)
- Refutation
- R(d);P_PINP(J),XP(D)
- Try
- B(E);XS(i)
- Threat
- QAR2(L)
- Vars
- R(d);P_PINP(J),SBLOCK,XP(D)::QAR2(L)
- Refutation
- B(h);XB(E)
- Try
- B(I);N_SPINS(K)
- Threat
- DUALS(2)
- Vars
- Q(g);XQ(L)::S(K)
- R(d);P_PINP(J),XP(D)::S(K)
- S(i);XB(I)::S(K)
- S(i);::S(K)
- Q(g);::S(K)
- Refutation
- R(d);
- Try
- R(C);CHECK,N_SPINS(K),XB(f)
- Refutation
- Q(g);P_PINS(K),XR(C)
- Try
- Q(L);
- Threat
- DUALS(7)
- Vars
- S(i);N_PINS(K)::S(K)
- Refutation
- R(d);P_PINP(J),XP(D)
- Try
- Q(L);N_SPINS(K)
- Threat
- DUALS(2)
- Vars
- Q(g);XB(I)::S(K)
- R(d);P_PINP(J),XP(D)::S(K)
- S(i);XQ(L)::S(K)
- Q(g);::S(K)
- S(i);::S(K)
- Refutation
- R(d);
- Try
- Actual
- B(E);
- Threat
- QAR2(L)
- Vars
- R(d);P_PINP(J),SBLOCK,XP(D)::QAR2(L)
- S(i);N_PINS(K)::S(K)
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