MESON Chess Problem Database
Problem Display
PID: 76158 (6Q1/5qp1/2Pp3b/R5n1/2P1P1R1/2BkP3/P1N1r2r/1nKN1B2 w - - 0 1)
Retter, Yosef
5th Prize, Mat Plus Challenge No. 1, 1997-1998
#2
13 + 9
| 5929 | Mat Plus Special Issue | 2006 |
| 6166 | FIDE Album (1998-2000) | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qxc4
- 2.Se1#
- 1...Qd5
- 2.Qxd5#
- 1...Qh5
- 2.Se1#
- 2.Sb4#
- 2.Qd5#
- 1...Qg6
- 2.Se1#
- 2.Sb4#
- 2.Qd5#
- 1...Qe8
- 2.Se1#
- 2.Sb4#
- 2.Qd5#
- 1...Qxf1
- 2.Sb4#
- 2.Qd5#
- 1...Qf2
- 2.Sb4#
- 2.Qd5#
- 1...Qf3
- 2.Se1#
- 2.Sb4#
- 2.Qd5#
- 1...Qf4
- 2.Qd5#
- 1...Qf5
- 2.Se1#
- 2.Sb4#
- 1...Qf6
- 2.Se1#
- 2.Sb4#
- 1...Qa7
- 2.Se1#
- 2.Sb4#
- 1...Qb7
- 2.Se1#
- 2.Qd5#
- 1...Qc7
- 2.Se1#
- 2.Sb4#
- 2.Qd5#
- 1...Qd7
- 2.Se1#
- 2.Sb4#
- 2.Qd5#
- 1...Qe7
- 2.Se1#
- 2.Sb4#
- 2.Qd5#
- 1...Qf8
- 2.Se1#
- 2.Sb4#
- 2.Qd5#
- 1...Sxc3
- 2.Sb2#
- 1...Qxc4
- Tries
- 1.Be1?
- threat
- 2.Sb2#
- 1...Kxc4
- 2.Sb2#
- 1...Qf4
- 2.Qd5#
- 1...Qf6
- 2.Sb4#
- 1...Qb7
- 2.Qd5#
- 1...Sd2!
- threat
- 1.Bd2?
- threat
- 2.Sb2#
- 1...Kxc4
- 2.Sb2#
- 1...Qxf1
- 2.Sb4#
- 2.Qd5#
- 1...Qf4
- 2.Qd5#
- 1...Qf6
- 2.Se1#
- 2.Sb4#
- 1...Qb7
- 2.Se1#
- 2.Qd5#
- 1...Sxd2!
- threat
- 1.Bd4?
- threat
- 2.Sb2#
- 1...Kxc4
- 2.Sb2#
- 1...Qxf1
- 2.Sb4#
- 1...Qb7
- 2.Se1#
- 1...Qf4!
- threat
- 1.Be5?
- threat
- 2.Sb2#
- 1...Kxc4
- 2.Sb2#
- 1...Qxf1
- 2.Sb4#
- 2.Qd5#
- 1...Qf4
- 2.Qd5#
- 1...Qb7
- 2.Se1#
- 2.Qd5#
- 1...dxe5!
- threat
- 1.Bf6?
- threat
- 2.Sb2#
- 1...Kxc4
- 2.Sb2#
- 1...Qxf6
- 2.Se1#
- 2.Sb4#
- 1...Qb7
- 2.Se1#
- 2.Qd5#
- 1...gxf6!
- threat
- 1.Bxg7?
- threat
- 2.Sb2#
- 1...Kxc4
- 2.Sb2#
- 1...Qxf1
- 2.Sb4#
- 2.Qd5#
- 1...Qxg7
- 2.Se1#
- 2.Sb4#
- 1...Qf4
- 2.Qd5#
- 1...Qf6
- 2.Se1#
- 2.Sb4#
- 1...Qb7
- 2.Se1#
- 2.Qd5#
- 1...Bxg7!
- threat
- 1.Ra4?
- threat
- 2.Se1#
- 1...Qxf1
- 2.Sb4#
- 2.Qd5#
- 1...Qf4
- 2.Qd5#
- 1...Qf2
- 2.Sb4#
- 2.Qd5#
- 1...Sf3!
- threat
- 1.Rc5?
- threat
- 2.Se1#
- 2.Sb4#
- 1...Qxc4
- 2.Se1#
- 2.Qxc4#
- 1...Qxf1
- 2.Sb4#
- 2.Qd5#
- 1...Qf4
- 2.Qd5#
- 1...Qf2
- 2.Sb4#
- 2.Qd5#
- 1...Qb7
- 2.Se1#
- 2.Qd5#
- 1...Sf3
- 2.Sb4#
- 1...dxc5!
- threat
- 1.Rd5+?
- 1...Qxd5
- 2.Qxd5#
- 1...Kxc4!
- 1...Qxd5
- 1.Be1?
- Keys
- 1.Bb4!
- threat
- 2.Sb2#
- 1...Kxc4
- 2.Sb2#
- 1...Qxf1
- 2.Qd5#
- 1...Qf4
- 2.Qd5#
- 1...Qf6
- 2.Se1#
- threat
- 1.Bb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- Q(h);XP(H)::S(E)
- Q(h);OGATE::QAR2(M),XQ(h)
- Q(h);OGATE,P_PINP(G)::QAR2(M)
- S(a);SBLOCK,XB(F)::S(B)
- Tries
- Try
- B(F);
- Threat
- S(B)
- Vars
- K(d);P_SPINQ(h),S_FLIGHT,XP(H)::S(B)
- Q(h);OGATE,P_PINP(G)::QAR2(M)
- Q(h);::S(E)
- Q(h);OGATE::QAR2(M)
- Refutation
- S(a);
- Try
- B(F);
- Threat
- S(B)
- Vars
- K(d);P_SPINQ(h),S_FLIGHT,XP(H)::S(B)
- Q(h);OGATE::QAR2(M)
- Refutation
- S(a);XB(F)
- Try
- B(F);
- Threat
- S(B)
- Vars
- K(d);P_SPINQ(h),S_FLIGHT,XP(H)::S(B)
- Q(h);N_SPINR(b),P_PINS(B),XB(C)::S(E)
- Q(h);::S(E)
- Refutation
- Q(h);P_PINP(G)
- Try
- B(F);
- Threat
- S(B)
- Vars
- K(d);P_SPINQ(h),S_FLIGHT,XP(H)::S(B)
- Q(h);OGATE,P_PINP(G)::QAR2(M)
- Refutation
- P(f);XB(F)
- Try
- B(F);
- Threat
- S(B)
- Vars
- K(d);P_SPINQ(h),S_FLIGHT,XP(H)::S(B)
- Refutation
- P(i);XB(F)
- Try
- B(F);XP(i)
- Threat
- S(B)
- Vars
- K(d);P_SPINQ(h),S_FLIGHT,XP(H)::S(B)
- Q(h);OGATE,P_PINP(G)::QAR2(M)
- Refutation
- B(g);XB(F)
- Try
- R(K);
- Threat
- S(E)
- Vars
- Q(h);OGATE,P_PINP(G)::QAR2(M)
- Refutation
- S(e);P_PINP(G)
- Try
- R(K);
- Threat
- DUALS(2)
- Vars
- Q(h);OGATE,P_PINP(G)::QAR2(M)
- S(e);P_PINP(G)::S(E)
- Refutation
- P(f);XR(K)
- Try
- R(K);CHECK
- Vars
- Q(h);OGATE,XR(K)::QAR2(M),XQ(h)
- Refutation
- K(d);S_FLIGHT,XP(H)
- Try
- Actual
- B(F);
- Threat
- S(B)
- Vars
- K(d);P_SPINQ(h),S_FLIGHT,XP(H)::S(B)
- Q(h);N_SPINR(b),OGATE,P_PINS(B),XB(C)::QAR2(M)
- Q(h);OGATE,P_PINP(G)::QAR2(M)
- Q(h);::S(E)
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