MESON Chess Problem Database
Problem Display
PID: 10568 (4b2r/7q/6n1/n2N1p2/7p/p2B3K/RPPkPP1Q/NR6 w - - 0 1)
Mansfield, Comins
Themes-64, 1965
#2
11 + 9
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Sxb3#
- 1...Sc4
- 2.Sb3#
- 1...Sc6
- 2.Sb3#
- 1...Sb7
- 2.Sb3#
- 1...Sf4+
- 2.Qxf4#
- 1...Se5
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sf8
- 2.Qf4#
- 1...Sb3
- Tries
- 1.Sc3?
- threat
- 2.Rd1#
- 1...Sf4+
- 2.Qxf4#
- 1...axb2!
- threat
- 1.Qg1?
- threat
- 2.Rd1#
- 2.Qc1#
- 2.Qd1#
- 2.Qe1#
- 1...axb2
- 2.Rd1#
- 2.Qd1#
- 2.Qe1#
- 1...Sb3
- 2.Sxb3#
- 2.Rd1#
- 2.Qd1#
- 2.Qe1#
- 1...Sf4+!
- threat
- 1.Qe5?
- threat
- 2.Qc3#
- 2.Qe3#
- 1...Sf4+
- 2.Qxf4#
- 1...Qh6
- 2.Qc3#
- 1...Qa7
- 2.Qc3#
- 1...Qc7
- 2.Qe3#
- 1...Qe7
- 2.Qc3#
- 1...Qg7
- 2.Qe3#
- 1...Sc4
- 2.Sb3#
- 2.Qc3#
- 1...f4
- 2.Qc3#
- 1...Sxe5!
- threat
- 1.Qh1?
- threat
- 2.Rd1#
- 2.Qc1#
- 2.Qd1#
- 2.Qe1#
- 1...axb2
- 2.Rd1#
- 2.Qd1#
- 2.Qe1#
- 1...Sb3
- 2.Sxb3#
- 2.Rd1#
- 2.Qd1#
- 2.Qe1#
- 1...Sf4+!
- threat
- 1.b3?
- threat
- 2.c3#
- 2.c4#
- 1...Sf4+
- 2.Qxf4#
- 1...Qg7
- 2.c3#
- 1...Sc4!
- threat
- 1.b4?
- threat
- 2.c3#
- 2.c4#
- 1...Sf4+
- 2.Qxf4#
- 1...Qg7
- 2.c3#
- 1...Sc4
- 2.Sb3#
- 1...Ba4!
- threat
- 1.c4?
- threat
- 2.bxa3#
- 2.b3#
- 2.b4#
- 1...Sf4+
- 2.Qxf4#
- 1...Sxc4
- 2.Sb3#
- 1...axb2
- 2.Raxb2#
- 1...Qb7
- 2.b3#
- 2.b4#
- 1...Ba4
- 2.b3#
- 1...Sb3
- 2.Sxb3#
- 2.bxa3#
- 1...Qg7!
- threat
- 1.e3?
- threat
- 2.f3#
- 2.f4#
- 1...Qh5
- 2.f3#
- 1...Qc7
- 2.f4#
- 1...f4
- 2.f3#
- 1...Sf4+!
- threat
- 1.e4?
- threat
- 2.f3#
- 2.f4#
- 1...Sf4+
- 2.Qxf4#
- 1...Qh5
- 2.f3#
- 1...Qc7
- 2.f4#
- 1...f4
- 2.f3#
- 1...Qa7!
- threat
- 1.f3?
- threat
- 2.e3#
- 2.e4#
- 1...Sf4+
- 2.Qxf4#
- 1...Qa7
- 2.e3#
- 1...Qc7!
- threat
- 1.f4?
- threat
- 2.e3#
- 2.e4#
- 1...Sxf4+
- 2.Qxf4#
- 1...Qa7
- 2.e3#
- 1...Qh5!
- threat
- 1.Sc3?
- Keys
- 1.c3!
- threat
- 2.bxa3#
- 2.b3#
- 2.b4#
- 1...Sf4+
- 2.Qxf4#
- 1...axb2
- 2.Raxb2#
- 1...Qb7
- 2.b3#
- 2.b4#
- 1...Ba4
- 2.b3#
- 1...Sb3
- 2.Sxb3#
- 2.bxa3#
- 1...Sc4
- 2.Sb3#
- threat
- 1.c3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- S(d);N_GUARD::S(A),XS(d)
- S(d);N_GUARD::S(A)
- S(f);CHECK,N_GUARD::QAB(H),XS(f)
- S(f);N_GUARD::QAB(H)
- Tries
- Try
- S(K);
- Threat
- R1(B)
- Vars
- S(f);CHECK,N_GUARD::QAB(H),XS(f)
- Refutation
- P(b);XP(D)
- Try
- Q(H);
- Threat
- DUALS(4)
- Refutation
- S(f);CHECK
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::QAB(H),XS(f)
- Q(g);::QAB1(H)
- P(e);::QAB1(H)
- Refutation
- S(f);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(4)
- Refutation
- S(f);CHECK
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::QAB(H),XS(f)
- Q(g);::R(C)+P(E)
- Refutation
- S(d);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::QAB(H),XS(f)
- Q(g);::R(C)+P(E)
- S(d);N_GUARD::S(A)
- Refutation
- B(h);
- Try
- P(E);
- Threat
- DUALS(3)
- Vars
- S(f);CHECK,N_GUARD::QAB(H),XS(f)
- S(d);N_GUARD,XP(E)::S(A)
- P(b);OGATE,P_SPINP(b),XP(D)::R(C),XP(b)
- B(h);::R(C)+P(D)
- Refutation
- Q(g);
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- Q(g);::QAR(H)+P(G)
- P(e);::QAR(H)+P(G)
- Refutation
- S(f);CHECK
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::QAB(H),XS(f)
- Q(g);::QAR(H)+P(G)
- P(e);::QAR(H)+P(G)
- Refutation
- Q(g);
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::QAB(H),XS(f)
- Q(g);::QAR(H)+P(F)
- Refutation
- Q(g);
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,OGATE,XP(G)::QAB(H),XS(f)
- Q(g);::QAR(H)+P(F)
- Refutation
- Q(g);
- Try
- Actual
- P(E);
- Threat
- DUALS(3)
- Vars
- S(f);CHECK,N_GUARD::QAB(H),XS(f)
- P(b);OGATE,P_SPINP(b),XP(D)::R(C),XP(b)
- B(h);::R(C)+P(D)
- S(d);N_GUARD::S(A)
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