MESON Chess Problem Database
Problem Display
PID: 224333 (8/B3n3/1r4NN/b2P3K/1p1p2R1/1R1nkp2/4b2p/4Q2B w - - 0 1)
Andrade, Barry Jack da Costa
Sunday Chronicle, 1944
(First published on Sun Aug 20 1944)
#2
9 + 10
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Bxd4#
- 1...Ra6
- 2.Bxd4#
- 1...Rc6
- 2.Bxd4#
- 1...Rd6
- 2.Bxd4#
- 1...Re6
- 2.Bxd4#
- 1...Rf6
- 2.Bxd4#
- 1...Rxg6
- 2.Bxd4#
- 1...Rb7
- 2.Bxd4#
- 1...Rb8
- 2.Bxd4#
- 1...Sxd5
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sxg6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2
- 2.Qc1#
- 1...Rb5
- Tries
- 1.Kh4?
- 1...Sf5+
- 2.Sxf5#
- 1...Rxg6
- 2.Bxd4#
- 1...Sxd5
- 2.Sf5#
- 1...Rb5
- 2.Bxd4#
- 1...Ra6
- 2.Bxd4#
- 1...Rc6
- 2.Bxd4#
- 1...Rd6
- 2.Bxd4#
- 1...Re6
- 2.Bxd4#
- 1...Rf6
- 2.Bxd4#
- 1...Rb7
- 2.Bxd4#
- 1...Rb8
- 2.Bxd4#
- 1...Sc6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2
- 2.Rg3#
- 2.Re4#
- 2.Qc1#
- 1...Sxg6+!
- 1...Sf5+
- 1.Kg5?
- 1...Sxd5
- 2.Sf5#
- 1...Sxg6
- 2.Sf5#
- 1...Rb5
- 2.Bxd4#
- 1...Ra6
- 2.Bxd4#
- 1...Rc6
- 2.Bxd4#
- 1...Rd6
- 2.Bxd4#
- 1...Re6
- 2.Bxd4#
- 1...Rf6
- 2.Bxd4#
- 1...Rb7
- 2.Bxd4#
- 1...Rb8
- 2.Bxd4#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2
- 2.Rg3#
- 2.Re4#
- 2.Qc1#
- 1...Rxg6+!
- 1...Sxd5
- 1.Sh4?
- 1...Sxd5
- 2.S4f5#
- 2.S6f5#
- 1...Rb5
- 2.Bxd4#
- 1...Ra6
- 2.Bxd4#
- 1...Rc6
- 2.Bxd4#
- 1...Rd6
- 2.Bxd4#
- 1...Re6
- 2.Bxd4#
- 1...Rf6
- 2.Bxd4#
- 1...Rg6
- 2.Bxd4#
- 1...Rb7
- 2.Bxd4#
- 1...Rb8
- 2.Bxd4#
- 1...Sf5
- 2.S4xf5#
- 2.S6xf5#
- 1...Sc6
- 2.S4f5#
- 2.S6f5#
- 1...Sg6
- 2.S4f5#
- 2.S6f5#
- 1...Sc8
- 2.S4f5#
- 2.S6f5#
- 1...Sg8
- 2.S4f5#
- 2.S6f5#
- 1...f2
- 2.Qc1#
- 1...Rxh6+!
- 1...Sxd5
- 1.Se5?
- threat
- 2.Sc4#
- 2.Rxd3#
- 1...Rc6
- 2.Bxd4#
- 2.Rxd3#
- 1...Rxh6+!
- threat
- 1.Sxe7?
- threat
- 2.Shf5#
- 2.Sef5#
- 1...Rf6
- 2.Bxd4#
- 1...Rxh6+!
- threat
- 1.Sf8?
- 1...Sxd5
- 2.Sf5#
- 1...Rb5
- 2.Bxd4#
- 1...Ra6
- 2.Bxd4#
- 1...Rc6
- 2.Bxd4#
- 1...Rd6
- 2.Bxd4#
- 1...Re6
- 2.Bxd4#
- 1...Rf6
- 2.Bxd4#
- 1...Rg6
- 2.Bxd4#
- 1...Rb7
- 2.Bxd4#
- 1...Rb8
- 2.Bxd4#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sg6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2
- 2.Qc1#
- 1...Rxh6+!
- 1...Sxd5
- 1.Sh8?
- 1...Sxd5
- 2.Sf5#
- 1...Rb5
- 2.Bxd4#
- 1...Ra6
- 2.Bxd4#
- 1...Rc6
- 2.Bxd4#
- 1...Rd6
- 2.Bxd4#
- 1...Re6
- 2.Bxd4#
- 1...Rf6
- 2.Bxd4#
- 1...Rg6
- 2.Bxd4#
- 1...Rb7
- 2.Bxd4#
- 1...Rb8
- 2.Bxd4#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sg6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2
- 2.Qc1#
- 1...Rxh6+!
- 1...Sxd5
- 1.Bxb6?
- threat
- 2.Bxd4#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Bxb6!
- threat
- 1.Kh4?
- Keys
- 1.Rh4!
- 1...f2+
- 2.Sg4#
- 1...Rxg6
- 2.Bxd4#
- 1...Sxd5
- 2.Sf5#
- 1...Sxg6
- 2.Sf5#
- 1...Rb5
- 2.Bxd4#
- 1...Ra6
- 2.Bxd4#
- 1...Rc6
- 2.Bxd4#
- 1...Rd6
- 2.Bxd4#
- 1...Re6
- 2.Bxd4#
- 1...Rf6
- 2.Bxd4#
- 1...Rb7
- 2.Bxd4#
- 1...Rb8
- 2.Bxd4#
- 1...Sf5
- 2.Sxf5#
- 1...Sc6
- 2.Sf5#
- 1...Sc8
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2+
- 1.Rh4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(i);OGATE,P_PINP(E),P_SPINP(g)::B(I),XP(g)
- R(i);OGATE,P_SPINP(g)::B(I),XP(g)
- R(i);OGATE,P_SPINP(g),XS(G)::B(I),XP(g)
- S(j);N_GUARD,XP(E)::S(H)
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
- S(j);N_GUARD,XS(G)::S(H)
- P(e);P_PINR(D),SBLOCK::QAB(A)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- S(j);CHECK,N_GUARD::S(H),XS(j)
- R(i);OGATE,P_SPINP(g),XS(G)::B(I),XP(g)
- S(j);N_GUARD,XP(E)::S(H)
- R(i);OGATE,P_SPINP(g)::B(I),XP(g)
- S(j);N_GUARD::S(H)
- Refutation
- S(j);CHECK,XS(G)
- Try
- K(F);P-FLIGHT
- Vars
- S(j);N_GUARD,XP(E)::S(H)
- S(j);N_GUARD,XS(G)::S(H)
- R(i);OGATE,P_PINP(E),P_SPINP(g)::B(I),XP(g)
- R(i);OGATE,P_SPINP(g)::B(I),XP(g)
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
- Refutation
- R(i);CHECK,P_SPINP(g),XS(G)
- Try
- S(G);
- Vars
- R(i);OGATE,P_PINP(E),P_SPINP(g)::B(I),XP(g)
- R(i);OGATE,P_SPINP(g)::B(I),XP(g)
- P(e);P_PINR(D),SBLOCK::QAB(A)
- Refutation
- R(i);CHECK,P_SPINP(g),XS(H)
- Try
- S(G);
- Threat
- DUALS(2)
- Refutation
- R(i);CHECK,P_SPINP(g),XS(H)
- Try
- S(G);XS(j)
- Threat
- DUALS(2)
- Vars
- R(i);OGATE,P_SPINP(g)::B(I),XP(g)
- Refutation
- R(i);CHECK,P_SPINP(g),XS(H)
- Try
- S(G);
- Vars
- S(j);N_GUARD,XP(E)::S(H)
- R(i);OGATE,P_PINP(E),P_SPINP(g)::B(I),XP(g)
- R(i);OGATE,P_SPINP(g)::B(I),XP(g)
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
- P(e);P_PINR(D),SBLOCK::QAB(A)
- Refutation
- R(i);CHECK,P_SPINP(g),XS(H)
- Try
- S(G);
- Vars
- S(j);N_GUARD,XP(E)::S(H)
- R(i);OGATE,P_PINP(E),P_SPINP(g)::B(I),XP(g)
- R(i);OGATE,P_SPINP(g)::B(I),XP(g)
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
- P(e);P_PINR(D),SBLOCK::QAB(A)
- Refutation
- R(i);CHECK,P_SPINP(g),XS(H)
- Try
- B(I);P_PINP(g),XR(i)
- Threat
- B(I),XP(g)
- Vars
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
- Refutation
- B(h);N_SPINP(g),XB(I)
- Try
- Actual
- R(D);
- Vars
- P(e);CHECK::S(H)
- R(i);OGATE,P_SPINP(g),XS(G)::B(I),XP(g)
- S(j);N_GUARD,XP(E)::S(H)
- S(j);N_GUARD,XS(G)::S(H)
- R(i);OGATE,P_PINP(E),P_SPINP(g)::B(I),XP(g)
- R(i);OGATE,P_SPINP(g)::B(I),XP(g)
- S(j);N_GUARD::S(H),XS(j)
- S(j);N_GUARD::S(H)
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