MESON Chess Problem Database
Problem Display
PID: 66882 (8/6p1/6P1/2PpkP2/7Q/2pPN1RB/ppn2P2/rb1K4 w - - 0 1)
Rudd, Charles Dember
Chess, 1947
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.d4#
- 1...Sa3
- 2.d4#
- 1...Sxe3+
- 2.Rxe3#
- 1...Sb4
- 2.d4#
- 1...Sd4
- 2.f4#
- 1...d4
- 2.f4#
- 1...Se1
- Tries
- 1.Ke2?
- 1...Sxe3
- 2.Rxe3#
- 2.d4#
- 1...Se1
- 2.d4#
- 1...Sa3
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...d4
- 2.f4#
- 1...Sd4+!
- 1...Sxe3
- 1.Sf1?
- 1...Se3+
- 2.Rxe3#
- 1...Se1
- 2.Re3#
- 2.d4#
- 1...Sa3
- 2.Re3#
- 2.d4#
- 1...Sb4
- 2.Re3#
- 2.d4#
- 1...Sd4
- 2.Re3#
- 2.f4#
- 1...d4!
- 1...Se3+
- 1.Sxc2?
- threat
- 2.Re3#
- 2.Qd4#
- 2.f4#
- 2.d4#
- 1...d4
- 2.Qxd4#
- 1...Bxc2+!
- threat
- 1.Sg2?
- 1...Se3+
- 2.Rxe3#
- 1...Se1
- 2.Re3#
- 2.d4#
- 1...Sa3
- 2.Re3#
- 2.d4#
- 1...Sb4
- 2.Re3#
- 2.d4#
- 1...Sd4
- 2.Re3#
- 2.f4#
- 1...d4!
- 1...Se3+
- 1.Bf1?
- 1...Se1
- 2.d4#
- 1...Sa3
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...Sd4
- 2.f4#
- 1...d4
- 2.f4#
- 1...Sxe3+!
- 1...Se1
- 1.Bg2?
- 1...Se1
- 2.d4#
- 1...Sa3
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...Sd4
- 2.f4#
- 1...d4
- 2.f4#
- 1...Sxe3+!
- 1...Se1
- 1.Rg1?
- 1...Se1
- 2.d4#
- 1...Sa3
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...Sd4
- 2.f4#
- 1...d4
- 2.f4#
- 1...Sxe3+!
- 1...Se1
- 1.Rg2?
- 1...Se1
- 2.d4#
- 1...Sa3
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...Sd4
- 2.f4#
- 1...d4
- 2.f4#
- 1...Sxe3+!
- 1...Se1
- 1.Rg4?
- threat
- 2.Qe7#
- 1...Sd4
- 2.f4#
- 1...Sxe3+!
- threat
- 1.Qe7+?
- 1...Kf4
- 2.Sg2#
- 2.Sxd5#
- 2.Qd6#
- 2.Qc7#
- 1...Kd4!
- 1...Kf4
- 1.Qe4+?
- 1...Kf6
- 2.Sxd5#
- 2.Qe6#
- 1...dxe4!
- 1...Kf6
- 1.Qf4+?
- 1...Kf6
- 2.Sxd5#
- 2.Qd6#
- 1...Kxf4!
- 1...Kf6
- 1.f3?
- 1...Se1
- 2.d4#
- 1...Sa3
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...Sd4
- 2.f4#
- 1...d4
- 2.f4#
- 1...Sxe3+!
- 1...Se1
- 1.f6?
- 1...Sxe3+
- 2.Rxe3#
- 1...Se1
- 2.d4#
- 1...Sa3
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...Sd4
- 2.f4#
- 1...d4
- 2.Qg5#
- 2.f4#
- 1...gxf6!
- 1...Sxe3+
- 1.Ke2?
- Keys
- 1.Rf3!
- 1...Sxe3+
- 2.Rxe3#
- 1...Se1
- 2.d4#
- 1...Sa3
- 2.d4#
- 1...Sb4
- 2.d4#
- 1...Sd4
- 2.Sg4#
- 1...d4
- 2.Qe7#
- 1...Sxe3+
- 1.Rf3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD::P(C)
- S(e);CHECK,OGATE,XS(D)::R(E),XS(e)
- S(e);SBLOCK::P(B)
- P(g);SBLOCK::P(B)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- S(e);N_GUARD::P(C)
- P(g);SBLOCK::P(B)
- Refutation
- S(e);CHECK
- Try
- S(D);
- Vars
- S(e);CHECK,N_GUARD::R(E),XS(e)
- Refutation
- P(g);
- Try
- S(D);XS(e)
- Threat
- DUALS(4)
- Vars
- P(g);::QAB1(G),XP(g)
- Refutation
- B(b);CHECK,XS(D)
- Try
- S(D);
- Vars
- S(e);CHECK,N_GUARD::R(E),XS(e)
- Refutation
- P(g);
- Try
- B(F);
- Vars
- S(e);N_GUARD::P(C)
- S(e);SBLOCK::P(B)
- P(g);SBLOCK::P(B)
- Refutation
- S(e);CHECK,XS(D)
- Try
- B(F);
- Vars
- S(e);N_GUARD::P(C)
- S(e);SBLOCK::P(B)
- P(g);SBLOCK::P(B)
- Refutation
- S(e);CHECK,XS(D)
- Try
- R(E);
- Vars
- S(e);N_GUARD::P(C)
- S(e);SBLOCK::P(B)
- P(g);SBLOCK::P(B)
- Refutation
- S(e);CHECK,XS(D)
- Try
- R(E);
- Vars
- S(e);N_GUARD::P(C)
- S(e);SBLOCK::P(B)
- P(g);SBLOCK::P(B)
- Refutation
- S(e);CHECK,XS(D)
- Try
- R(E);
- Threat
- QAR2(G)
- Vars
- S(e);SBLOCK::P(B)
- Refutation
- S(e);CHECK,XS(D)
- Try
- Q(G);CHECK
- Refutation
- K(h);S_FLIGHT
- Try
- Q(G);CHECK
- Refutation
- P(g);XQ(G)
- Try
- Q(G);CHECK
- Refutation
- K(h);S_FLIGHT,XQ(G)
- Try
- P(B);
- Vars
- S(e);N_GUARD::P(C)
- S(e);SBLOCK::P(B)
- P(g);SBLOCK::P(B)
- Refutation
- S(e);CHECK,XS(D)
- Try
- P(I);
- Vars
- S(e);CHECK,OGATE,XS(D)::R(E),XS(e)
- S(e);N_GUARD::P(C)
- S(e);SBLOCK::P(B)
- Refutation
- P(i);XP(I)
- Try
- Actual
- R(E);
- Vars
- S(e);CHECK,OGATE,XS(D)::R(E),XS(e)
- S(e);N_GUARD::P(C)
- S(e);SBLOCK::S(D)
- P(g);SBLOCK::QAR2(G)
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