MESON Chess Problem Database
Problem Display
PID: 4606 (5r2/3B3r/1B1p2N1/1n1k1Pp1/6N1/3P4/P4p2/Q2n1K2 w - - 0 1)
Cheney, George Nelson
Schachaufgaben, 1882
#2
9 + 8
| 15 | British Chess Magazine | 1910 |
SOLUTION
- SOUND
- Sets
- 1...Rh2
- 2.Se7#
- 1...Rh3
- 2.Se7#
- 1...Rh4
- 2.Se7#
- 1...Rh5
- 2.Se7#
- 1...Rh6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 1...Rhh8
- 2.Se7#
- 1...Rf6
- 2.Sxf6#
- 1...Ra8
- 2.Sf6#
- 1...Rb8
- 2.Sf6#
- 1...Rc8
- 2.Sf6#
- 1...Rd8
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Rg8
- 2.Sf6#
- 1...Rfh8
- 2.Sf6#
- 1...Sb2
- 2.Se3#
- 1...Sdc3
- 2.Se3#
- 1...Se3+
- 2.Sxe3#
- 1...Sa3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Rh2
- Tries
- 1.Qb2?
- threat
- 2.Qb3#
- 2.Qxb5#
- 1...Se3+
- 2.Sxe3#
- 1...Rxd7
- 2.Qxb5#
- 1...Sxb2
- 2.Se3#
- 1...Rc8
- 2.Sf6#
- 1...Sdc3
- 2.Se3#
- 2.Qb3#
- 1...Sa3
- 2.Qd4#
- 1...Sbc3
- 2.Qb3#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Qd4#
- 2.Qb3#
- 1...Sc7
- 2.Qd4#
- 2.Qb3#
- 1...Rh1+!
- threat
- 1.Qxd1?
- threat
- 2.Se3#
- 2.Qb3#
- 2.Qf3#
- 1...Rxd7
- 2.Qf3#
- 1...Rxf5
- 2.Se3#
- 2.Qb3#
- 1...Rh3
- 2.Se7#
- 2.Qb3#
- 1...Re7
- 2.Sxe7#
- 2.Qb3#
- 1...Rc8
- 2.Se3#
- 2.Sf6#
- 2.Qf3#
- 1...Re8
- 2.Sf6#
- 2.Qb3#
- 1...Sa3
- 2.Se3#
- 2.Qf3#
- 1...Sc3
- 2.Se3#
- 2.Qb3#
- 1...Sd4
- 2.Se3#
- 1...Rh1+!
- threat
- 1.Qb2?
- Keys
- 1.Qh8!
- 1...Rh1+
- 2.Qxh1#
- 1...Se3+
- 2.Sxe3#
- 1...Rxd7
- 2.Qh1#
- 1...Rhxh8
- 2.Se7#
- 1...Rxf5
- 2.Qa8#
- 1...Rfxh8
- 2.Sf6#
- 1...Rh2
- 2.Se7#
- 1...Rh3
- 2.Se7#
- 1...Rh4
- 2.Se7#
- 1...Rh5
- 2.Se7#
- 1...Rh6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 1...Rhf7
- 2.Qh1#
- 1...Rg7
- 2.Qh1#
- 1...Rf6
- 2.Sxf6#
- 2.Qa8#
- 1...Rff7
- 2.Qa8#
- 1...Ra8
- 2.Sf6#
- 2.Qxa8#
- 1...Rb8
- 2.Sf6#
- 1...Rc8
- 2.Sf6#
- 1...Rd8
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Rg8
- 2.Sf6#
- 1...Sb2
- 2.Se3#
- 1...Sdc3
- 2.Se3#
- 1...Sa3
- 2.Qd4#
- 1...Sbc3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Rh1+
- 1.Qh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 2
- Sets
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- R(h);N_GUARD::S(E),XR(h)
- R(h);N_GUARD::S(E)
- S(a);N_GUARD::S(E)
- S(a);CHECK,N_GUARD::S(E),XS(a)
- S(c);N_GUARD::QAR1(A)
- S(c);N_GUARD::QAR1(A),XS(c)
- Tries
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::S(E),XS(a)
- R(g);XB(I)::QAR2(A),XS(c)
- S(a);N_GUARD,XQ(A)::S(E)
- R(h);N_GUARD::S(E)
- S(c);N_GUARD::QAR1(A)
- S(c);::QAB(A)
- S(c);N_GUARD::QAR1(A),XS(c)
- Refutation
- R(g);CHECK
- Try
- Q(A);XS(a)
- Threat
- DUALS(3)
- Vars
- R(g);XB(I)::QAB(A)
- S(c);::S(E)
- Refutation
- R(g);CHECK
- Try
- Actual
- Q(A);
- Vars
- R(g);CHECK,OGATE::QAB(A),XR(g)
- S(a);CHECK,N_GUARD::S(E),XS(a)
- R(g);OGATE,XB(I)::QAB(A)
- R(g);N_GUARD,XQ(A)::S(H)
- R(h);OGATE,XP(F)::QAB(A)
- R(h);N_GUARD,XQ(A)::S(E)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- R(g);OGATE::QAB(A)
- R(h);OGATE::QAB(A)
- R(h);N_GUARD::S(E)
- S(a);N_GUARD::S(E)
- S(c);N_GUARD::QAR1(A)
- S(c);N_GUARD::QAR1(A),XS(c)
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