MESON Chess Problem Database
Problem Display
PID: 262517 (8/1n6/1R1p1P2/p1prB1pK/k1N3Pp/3p1B1r/5pR1/n2bQ3 w - - 0 1)
Hjelle, David
Europe Echecs, 1966
#2
9 + 13
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Bc6#
- 1...Rxe5
- 2.Bc6#
- 1...Bc2
- 2.Qxa1#
- 1...Be2
- 2.Qxa1#
- 1...Bxf3
- 2.Qxa1#
- 1...Sd8
- 2.Qxa5#
- 1...fxe1Q
- 2.Ra2#
- 1...fxe1S
- 2.Ra2#
- 1...fxe1B
- 2.Ra2#
- 1...fxe1R
- 2.Ra2#
- 1...f1Q
- 2.Ra2#
- 1...f1S
- 2.Ra2#
- 1...f1B
- 2.Ra2#
- 1...f1R
- 2.Ra2#
- 1...Rd4
- Tries
- 1.Bxd1+?
- 1...Sb3
- 2.Bxb3#
- 1...Sc2!
- 1...Sb3
- 1.Bxd5?
- threat
- 2.Bc6#
- 1...Bf3
- 2.Qxa1#
- 1...Sd8
- 2.Qxa5#
- 1...Bxg4+!
- threat
- 1.Bxa1?
- threat
- 2.Bxd1#
- 2.Qxd1#
- 2.Qe8#
- 1...Rxf3
- 2.Qxd1#
- 2.Qe8#
- 1...Bxf3
- 2.Qe8#
- 1...fxe1Q
- 2.Ra2#
- 1...fxe1S
- 2.Ra2#
- 1...fxe1B
- 2.Bxd1#
- 2.Ra2#
- 1...fxe1R
- 2.Ra2#
- 1...f1Q
- 2.Bxd1#
- 2.Ra2#
- 2.Qe8#
- 1...f1R
- 2.Bxd1#
- 2.Ra2#
- 2.Qe8#
- 1...Rh1
- 2.Bxd1#
- 2.Qe8#
- 1...Re5
- 2.Bxd1#
- 2.Bc6#
- 2.Qxd1#
- 1...Bc2
- 2.Qe8#
- 1...Bb3
- 2.Qe8#
- 1...Sd8
- 2.Bxd1#
- 2.Qxa5#
- 2.Qxd1#
- 1...d2
- 2.Qxd1#
- 2.Qe8#
- 1...Be2!
- threat
- 1.Bc3?
- threat
- 2.Qe8#
- 1...fxe1Q
- 2.Ra2#
- 1...fxe1S
- 2.Ra2#
- 1...fxe1B
- 2.Ra2#
- 1...fxe1R
- 2.Ra2#
- 1...Re5
- 2.Bc6#
- 1...Be2
- 2.Qxa1#
- 1...Sd8!
- threat
- 1.Bg3?
- threat
- 2.Qe8#
- 1...fxe1Q
- 2.Ra2#
- 1...fxe1S
- 2.Ra2#
- 1...fxe1B
- 2.Ra2#
- 1...fxe1R
- 2.Ra2#
- 1...Re5
- 2.Bc6#
- 1...Be2
- 2.Qxa1#
- 1...Sd8
- 2.Qxa5#
- 1...hxg3+!
- threat
- 1.Bd4?
- threat
- 2.Qe8#
- 1...fxe1Q
- 2.Ra2#
- 1...fxe1S
- 2.Ra2#
- 1...fxe1B
- 2.Ra2#
- 1...fxe1R
- 2.Ra2#
- 1...Re5
- 2.Bc6#
- 1...Be2
- 2.Qxa1#
- 1...Sd8
- 2.Qxa5#
- 1...cxd4!
- threat
- 1.Bf4?
- threat
- 2.Qe8#
- 1...fxe1Q
- 2.Ra2#
- 1...fxe1S
- 2.Ra2#
- 1...fxe1B
- 2.Ra2#
- 1...fxe1R
- 2.Ra2#
- 1...Re5
- 2.Bc6#
- 1...Be2
- 2.Qxa1#
- 1...Sd8
- 2.Qxa5#
- 1...gxf4+!
- threat
- 1.Bxd6?
- threat
- 2.Qe8#
- 1...Sxd6
- 2.Qxa5#
- 1...fxe1Q
- 2.Ra2#
- 1...fxe1S
- 2.Ra2#
- 1...fxe1B
- 2.Ra2#
- 1...fxe1R
- 2.Ra2#
- 1...Re5
- 2.Bc6#
- 1...Be2
- 2.Qxa1#
- 1...Sd8
- 2.Qxa5#
- 1...Rxd6!
- threat
- 1.Qxd1+?
- 1...Sb3
- 2.Qxb3#
- 1...Sc2!
- 1...Sb3
- 1.Bxd1+?
- Keys
- 1.Bh2!
- threat
- 2.Qe8#
- 1...fxe1Q
- 2.Ra2#
- 1...fxe1S
- 2.Ra2#
- 1...fxe1B
- 2.Ra2#
- 1...fxe1R
- 2.Ra2#
- 1...Re5
- 2.Bc6#
- 1...Be2
- 2.Qxa1#
- 1...Sd8
- 2.Qxa5#
- threat
- 1.Bh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- R(j);OGATE::B(C)
- R(j);OGATE,XB(F)::B(C)
- B(b);OGATE::QAR(A),XS(a)
- B(b);OGATE,P_PINP(E),XB(C)::QAR(A),XS(a)
- S(m);N_GUARD::QAR1(A),XP(h)
- P(c);OGATE,XQ(A)::R(B)
- P(c);OGATE::R(B)
- Tries
- Try
- B(C);CHECK,XB(b)
- Vars
- S(a);N_GUARD,P_SPINS(a)::B(C),XS(a)
- Refutation
- S(a);P_SPINS(a)
- Try
- B(C);P_SPINP(E),XR(j)
- Threat
- B(C)
- Vars
- B(b);OGATE::QAR(A),XS(a)
- S(m);N_GUARD::QAR1(A),XP(h)
- Refutation
- B(b);CHECK,XP(E)
- Try
- B(F);XS(a)
- Threat
- DUALS(3)
- Vars
- B(b);P_PINP(E),XB(C)::QAB(A)
- P(c);OGATE,XQ(A)::R(B)
- B(b);::QAB(A)
- Refutation
- B(b);
- Try
- B(F);
- Threat
- QAB(A)
- Vars
- P(c);OGATE,XQ(A)::R(B)
- R(j);OGATE::B(C)
- B(b);OGATE::QAR(A),XS(a)
- Refutation
- S(m);
- Try
- B(F);
- Threat
- QAB(A)
- Vars
- P(c);OGATE,XQ(A)::R(B)
- R(j);OGATE::B(C)
- B(b);OGATE::QAR(A),XS(a)
- S(m);N_GUARD::QAR1(A),XP(h)
- Refutation
- P(g);CHECK,XB(F)
- Try
- B(F);
- Threat
- QAB(A)
- Vars
- P(c);OGATE,XQ(A)::R(B)
- R(j);OGATE::B(C)
- B(b);OGATE::QAR(A),XS(a)
- S(m);N_GUARD::QAR1(A),XP(h)
- Refutation
- P(i);XB(F)
- Try
- B(F);
- Threat
- QAB(A)
- Vars
- P(c);OGATE,XQ(A)::R(B)
- R(j);OGATE::B(C)
- B(b);OGATE::QAR(A),XS(a)
- S(m);N_GUARD::QAR1(A),XP(h)
- Refutation
- P(k);CHECK,XB(F)
- Try
- B(F);XP(l)
- Threat
- QAB(A)
- Vars
- S(m);N_GUARD,XB(F)::QAR1(A),XP(h)
- P(c);OGATE,XQ(A)::R(B)
- R(j);OGATE::B(C)
- B(b);OGATE::QAR(A),XS(a)
- S(m);N_GUARD::QAR1(A),XP(h)
- Refutation
- R(j);XB(F)
- Try
- Q(A);CHECK,XB(b)
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
- Refutation
- S(a);P_SPINS(a)
- Try
- Actual
- B(F);
- Threat
- QAB(A)
- Vars
- P(c);OGATE,XQ(A)::R(B)
- R(j);OGATE::B(C)
- B(b);OGATE::QAR(A),XS(a)
- S(m);N_GUARD::QAR1(A),XP(h)
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