MESON Chess Problem Database
Problem Display
PID: 132375 (8/1pp5/br6/2N3QP/2nkp2K/6RP/B4P2/3N4 w - - 0 1)
Robertson, Rev Nevill
The Field, 1956
(First published on Thu Nov 8 1956)
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Se6#
- 1...Rb2
- 2.Se6#
- 1...Rb3
- 2.Sxb3#
- 2.Se6#
- 1...Rb4
- 2.Se6#
- 1...Rb5
- 2.Se6#
- 1...Rc6
- 2.Sb3#
- 1...Rd6
- 2.Sb3#
- 1...Re6
- 2.Sb3#
- 2.Sxe6#
- 1...Rf6
- 2.Sb3#
- 1...Rg6
- 2.Sb3#
- 1...Rh6
- 2.Sb3#
- 1...Bb5
- 2.Sb3#
- 1...Sb2
- 2.Qd5#
- 1...Sd2
- 2.Qd5#
- 1...Sa3
- 2.Qd5#
- 1...Se3
- 2.fxe3#
- 1...Sa5
- 2.Qd5#
- 1...Se5
- 2.Qe3#
- 1...Sd6
- 2.Se6#
- 2.Qd5#
- 1...e3
- 2.Rg4#
- 1...c6
- 2.Se6#
- 1...Rb1
- Tries
- 1.Sc3?
- threat
- 2.Se2#
- 2.Qd5#
- 1...Se5
- 2.Qe3#
- 1...e3
- 2.Se2#
- 1...Rb2
- 2.Se6#
- 2.Qd5#
- 1...Rd6
- 2.Se2#
- 2.Sb3#
- 1...Sb2
- 2.Qd5#
- 1...Sd2
- 2.Qd5#
- 1...Sa3
- 2.Qd5#
- 1...Sa5
- 2.Qd5#
- 1...Sd6
- 2.Se6#
- 2.Qd5#
- 1...c6
- 2.Se2#
- 2.Se6#
- 1...Se3!
- threat
- 1.Re3?
- threat
- 2.Rxe4#
- 1...Sxe3
- 2.fxe3#
- 1...Re6
- 2.Sb3#
- 2.Sxe6#
- 1...Sd2
- 2.Qd5#
- 1...Sd6
- 2.Se6#
- 2.Qd5#
- 1...Se5!
- threat
- 1.Rf3?
- 1...Se5
- 2.Qe3#
- 1...Rb5
- 2.Se6#
- 1...Rb1
- 2.Se6#
- 1...Rb2
- 2.Se6#
- 1...Rb3
- 2.Sxb3#
- 2.Se6#
- 1...Rb4
- 2.Se6#
- 1...Rc6
- 2.Sb3#
- 1...Rd6
- 2.Sb3#
- 1...Re6
- 2.Sb3#
- 2.Sxe6#
- 1...Rf6
- 2.Sb3#
- 1...Rg6
- 2.Sb3#
- 1...Rh6
- 2.Sb3#
- 1...Bb5
- 2.Sb3#
- 1...Sb2
- 2.Qd5#
- 1...Sd2
- 2.Qd5#
- 1...Sa3
- 2.Qd5#
- 1...Se3
- 2.fxe3#
- 1...Sa5
- 2.Qd5#
- 1...Sd6
- 2.Se6#
- 2.Qd5#
- 1...e3
- 2.Rf4#
- 1...c6
- 2.Se6#
- 1...exf3!
- 1...Se5
- 1.Rg4?
- threat
- 2.Rxe4#
- 1...Se5
- 2.Qe3#
- 1...Sd2
- 2.Qd5#
- 1...Sd6
- 2.Qd5#
- 1...Re6!
- threat
- 1.Qf5?
- 1...Rb5
- 2.Se6#
- 1...Rb1
- 2.Se6#
- 1...Rb2
- 2.Se6#
- 1...Rb3
- 2.Sxb3#
- 2.Se6#
- 1...Rb4
- 2.Se6#
- 1...Rc6
- 2.Sb3#
- 1...Rd6
- 2.Sb3#
- 1...Re6
- 2.Sb3#
- 2.Sxe6#
- 1...Rf6
- 2.Sb3#
- 1...Rg6
- 2.Sb3#
- 1...Rh6
- 2.Sb3#
- 1...Bb5
- 2.Sb3#
- 1...Sb2
- 2.Qd5#
- 1...Sd2
- 2.Qd5#
- 1...Sa3
- 2.Qd5#
- 1...Se3
- 2.fxe3#
- 1...Sa5
- 2.Qd5#
- 1...Sd6
- 2.Se6#
- 2.Qd5#
- 1...e3
- 2.Rg4#
- 1...c6
- 2.Se6#
- 1...Se5!
- 1...Rb5
- 1.f4?
- 1...exf4 ep
- 2.Rg4#
- 1...Se5
- 2.Qxe5#
- 1...Rb5
- 2.Se6#
- 1...Rb1
- 2.Se6#
- 1...Rb2
- 2.Se6#
- 1...Rb3
- 2.Sxb3#
- 2.Se6#
- 1...Rb4
- 2.Se6#
- 1...Rc6
- 2.Sb3#
- 1...Rd6
- 2.Sb3#
- 1...Re6
- 2.Sb3#
- 2.Sxe6#
- 1...Rf6
- 2.Sb3#
- 1...Rg6
- 2.Sb3#
- 1...Rh6
- 2.Sb3#
- 1...Bb5
- 2.Sb3#
- 1...Sb2
- 2.Qd5#
- 2.Qe5#
- 1...Sd2
- 2.Qd5#
- 2.Qe5#
- 1...Sa3
- 2.Qd5#
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Sa5
- 2.Qd5#
- 2.Qe5#
- 1...Sd6
- 2.Se6#
- 2.Qd5#
- 2.Qe5#
- 1...c6
- 2.Se6#
- 1...e3!
- 1...exf4 ep
- 1.h6?
- 1...Se5
- 2.Qe3#
- 1...Rb5
- 2.Se6#
- 1...Rb1
- 2.Se6#
- 1...Rb2
- 2.Se6#
- 1...Rb3
- 2.Sxb3#
- 2.Se6#
- 1...Rb4
- 2.Se6#
- 1...Rc6
- 2.Sb3#
- 1...Rd6
- 2.Sb3#
- 1...Re6
- 2.Sb3#
- 2.Sxe6#
- 1...Rf6
- 2.Sb3#
- 1...Rg6
- 2.Sb3#
- 1...Bb5
- 2.Sb3#
- 1...Sb2
- 2.Qd5#
- 1...Sd2
- 2.Qd5#
- 1...Sa3
- 2.Qd5#
- 1...Se3
- 2.fxe3#
- 1...Sa5
- 2.Qd5#
- 1...Sd6
- 2.Se6#
- 2.Qd5#
- 1...e3
- 2.Rg4#
- 1...c6
- 2.Se6#
- 1...Rxh6+!
- 1...Se5
- 1.Sc3?
- Keys
- 1.Rc3!
- 1...Rb5
- 2.Se6#
- 2.Rxc4#
- 1...Rb1
- 2.Se6#
- 1...Rb2
- 2.Se6#
- 1...Rb3
- 2.Sxb3#
- 2.Se6#
- 1...Rb4
- 2.Se6#
- 1...Rc6
- 2.Sb3#
- 1...Rd6
- 2.Sb3#
- 1...Re6
- 2.Sb3#
- 2.Sxe6#
- 1...Rf6
- 2.Sb3#
- 1...Rg6
- 2.Sb3#
- 1...Rh6
- 2.Sb3#
- 1...Bb5
- 2.Sb3#
- 1...Sb2
- 2.Qd5#
- 1...Sd2
- 2.Qd5#
- 1...Sa3
- 2.Qd5#
- 1...Se3
- 2.fxe3#
- 1...Sa5
- 2.Qd5#
- 1...Se5
- 2.Qe3#
- 1...Sd6
- 2.Se6#
- 2.Qf6#
- 2.Qd5#
- 2.Qg7#
- 1...e3
- 2.Rd3#
- 1...c6
- 2.Se6#
- 1...Rb5
- 1.Rc3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(e);N_GUARD::S(G)
- R(e);N_GUARD,P_PINP(I)::S(G)
- B(d);S_CUTR(e)::S(G)
- S(a);::QAR1(H)
- S(a);OGATE::P(C),XS(a)
- S(a);N_GUARD,SBLOCK::QAB1(H)
- P(c);OGATEB::R(D)
- P(g);S_CUTR(e)::S(G)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD,SBLOCK::QAB1(H)
- P(c);::S(A)
- S(a);::QAR1(H)
- Refutation
- S(a);
- Try
- R(D);
- Threat
- R1(D),XP(c)
- Vars
- S(a);OGATE,XR(D)::P(C),XS(a)
- S(a);::QAR1(H)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- S(a);N_GUARD,SBLOCK::QAB1(H)
- R(e);N_GUARD::S(G)
- R(e);N_GUARD,P_PINP(I)::S(G)
- B(d);S_CUTR(e)::S(G)
- S(a);::QAR1(H)
- S(a);OGATE::P(C),XS(a)
- P(c);OGATEB::R(D)
- P(g);S_CUTR(e)::S(G)
- Refutation
- P(c);XR(D)
- Try
- R(D);P_PINP(c)
- Threat
- R1(D),XP(c)
- Vars
- S(a);N_GUARD,SBLOCK::QAB1(H)
- S(a);::QAR1(H)
- Refutation
- R(e);
- Try
- Q(H);
- Vars
- R(e);N_GUARD::S(G)
- R(e);N_GUARD,P_PINP(I)::S(G)
- B(d);S_CUTR(e)::S(G)
- S(a);::QAR1(H)
- S(a);OGATE::P(C),XS(a)
- P(c);OGATEB::R(D)
- P(g);S_CUTR(e)::S(G)
- Refutation
- S(a);
- Try
- P(C);
- Vars
- P(c);EP,OGATEB,XP(C)::R(D)
- S(a);N_GUARD::QAB1(H),XS(a)
- R(e);N_GUARD::S(G)
- R(e);N_GUARD,P_PINP(I)::S(G)
- B(d);S_CUTR(e)::S(G)
- S(a);N_GUARD::QAB1(H)
- P(g);S_CUTR(e)::S(G)
- Refutation
- P(c);
- Try
- P(I);
- Vars
- S(a);N_GUARD,SBLOCK::QAB1(H)
- R(e);N_GUARD::S(G)
- B(d);S_CUTR(e)::S(G)
- S(a);::QAR1(H)
- S(a);OGATE::P(C),XS(a)
- P(c);OGATEB::R(D)
- P(g);S_CUTR(e)::S(G)
- Refutation
- R(e);CHECK,XP(I)
- Try
- Actual
- R(D);
- Vars
- R(e);N_GUARD::S(G)
- R(e);N_GUARD,P_PINP(I)::S(G)
- B(d);S_CUTR(e)::S(G)
- S(a);::QAR1(H)
- S(a);OGATE::P(C),XS(a)
- S(a);N_GUARD,SBLOCK::QAB1(H)
- P(c);N_GUARD::R1(D)
- P(g);S_CUTR(e)::S(G)
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