MESON Chess Problem Database
Problem Display
PID: 80961 (8/N2N4/5p2/3n4/p1kB2p1/Pr1R2K1/BPb1P3/n1Q5 w - - 0 1)
Andrade, Barry Jack da Costa
The Field, 1950
(First published on Sat Jun 10 1950)
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Sc3
- 2.Sb6#
- 1...Se3
- 2.Sb6#
- 1...Sb4
- 2.Sb6#
- 1...Sf4
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...Sc7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...f5
- 2.Se5#
- 1...Sc3
- Tries
- 1.Kf2?
- 1...Sc3
- 2.Sb6#
- 1...Se3
- 2.Sb6#
- 1...Sb4
- 2.Sb6#
- 1...Sf4
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...Sc7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...f5
- 2.Se5#
- 1...g3+!
- 1...Sc3
- 1.Kh2?
- 1...Sc3
- 2.Sb6#
- 1...Se3
- 2.Sb6#
- 1...Sb4
- 2.Sb6#
- 1...Sf4
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...Sc7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...f5
- 2.Se5#
- 1...g3+!
- 1...Sc3
- 1.Kh4?
- 1...Sc3
- 2.Sb6#
- 1...Se3
- 2.Sb6#
- 1...Sb4
- 2.Sb6#
- 1...Sf4
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...Sc7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...f5
- 2.Se5#
- 1...g3!
- 1...Sc3
- 1.Bg1?
- 1...Sc3
- 2.Sb6#
- 2.Rd4#
- 1...Sb4
- 2.Sb6#
- 2.Qf4#
- 1...Sf4
- 2.Sb6#
- 2.Qxf4#
- 1...Sb6
- 2.Sxb6#
- 2.Qf4#
- 1...Sc7
- 2.Sb6#
- 2.Qf4#
- 1...Se7
- 2.Sb6#
- 2.Qf4#
- 1...f5
- 2.Se5#
- 1...Se3!
- 1...Sc3
- 1.Bf2?
- 1...Sc3
- 2.Sb6#
- 2.Rd4#
- 1...Sb4
- 2.Sb6#
- 2.Qf4#
- 1...Sf4
- 2.Sb6#
- 2.Qxf4#
- 1...Sb6
- 2.Sxb6#
- 2.Qf4#
- 1...Sc7
- 2.Sb6#
- 2.Qf4#
- 1...Se7
- 2.Sb6#
- 2.Qf4#
- 1...f5
- 2.Se5#
- 1...Se3!
- 1...Sc3
- 1.Bc5?
- 1...Se3
- 2.Rd4#
- 1...Sc3
- 2.Rd4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb6
- 2.Qf4#
- 1...Sc7
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...f5!
- 1...Se3
- 1.Bxf6?
- 1...Se3
- 2.Rd4#
- 1...Sc3
- 2.Rd4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb6
- 2.Qf4#
- 1...Sc7
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sxf6!
- 1...Se3
- 1.Qxc2+?
- 1...Sc3
- 2.Sb6#
- 1...Sxc2!
- 1...Sc3
- 1.Kf2?
- Keys
- 1.Bb6!
- 1...Sxb6
- 2.Qf4#
- 1...Se3
- 2.Rd4#
- 1...Sc3
- 2.Rd4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sc7
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...f5
- 2.Se5#
- 1...Sxb6
- 1.Bb6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(g);N_GUARD,N_PINR(F),N_SPINB(b)::S(J)
- S(g);N_GUARD,N_PINR(F)::S(J)
- S(g);N_GUARD::S(J)
- S(g);N_GUARD::S(J),XS(g)
- P(h);N_GUARD::S(J)
- Tries
- Try
- K(G);N_SPINR(F),S_FLIGHT
- Vars
- S(g);N_GUARD,N_SPINB(b)::S(J)
- S(g);N_GUARD::S(J)
- S(g);N_GUARD::S(J),XS(g)
- P(h);N_GUARD::S(J)
- Refutation
- P(f);CHECK
- Try
- K(G);N_SPINR(F),S_FLIGHT
- Vars
- S(g);N_GUARD,N_SPINB(b)::S(J)
- S(g);N_GUARD::S(J)
- S(g);N_GUARD::S(J),XS(g)
- P(h);N_GUARD::S(J)
- Refutation
- P(f);CHECK
- Try
- K(G);N_SPINR(F),S_FLIGHT
- Vars
- S(g);N_GUARD,N_SPINB(b)::S(J)
- S(g);N_GUARD::S(J)
- S(g);N_GUARD::S(J),XS(g)
- P(h);N_GUARD::S(J)
- Refutation
- P(f);
- Try
- B(H);
- Vars
- P(h);N_GUARD::S(J)
- Refutation
- S(g);N_PINR(F)
- Try
- B(H);
- Vars
- P(h);N_GUARD::S(J)
- Refutation
- S(g);N_PINR(F)
- Try
- B(H);
- Vars
- S(g);N_PINR(F)::R1(F)
- S(g);N_PINR(F),N_SPINB(b)::R1(F)
- S(g);N_GUARD::QAR(A)
- S(g);N_GUARD::QAR(A),XS(g)
- Refutation
- P(h);
- Try
- B(H);XP(h)
- Vars
- S(g);N_PINR(F)::R1(F)
- S(g);N_PINR(F),N_SPINB(b)::R1(F)
- S(g);N_GUARD::QAR(A)
- S(g);N_GUARD::QAR(A),XS(g)
- Refutation
- S(g);XB(H)
- Try
- Q(A);CHECK,XB(b)
- Vars
- S(g);N_PINR(F),P_SPINS(g)::S(J)
- Refutation
- S(a);XQ(A)
- Try
- Actual
- B(H);
- Vars
- S(g);N_GUARD,XB(H)::QAR(A)
- S(g);N_PINR(F)::R1(F)
- S(g);N_PINR(F),N_SPINB(b)::R1(F)
- S(g);N_GUARD::QAR(A)
- S(g);N_GUARD::QAR(A),XS(g)
- P(h);N_GUARD::S(J)
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