MESON Chess Problem Database
Problem Display
PID: 221951 (Q1K2R2/8/3N4/1N2kp1b/1n6/1B2P1n1/P1P2P2/5r2 w - - 0 1)
Lindsay, Ruth
British Chess Magazine, 1929
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.f4#
- 1...Rb1
- 2.f4#
- 1...Rc1
- 2.f4#
- 1...Rd1
- 2.f4#
- 1...Re1
- 2.f4#
- 1...Rg1
- 2.f4#
- 1...Rh1
- 2.f4#
- 1...Sh1
- 2.Rxf5#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sxa2
- 2.Qd5#
- 1...Sxc2
- 2.Qd5#
- 1...Sd3
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...f4
- 2.exf4#
- 1...Ra1
- Tries
- 1.Qe4+?
- 1...Sxe4
- 2.Rxf5#
- 1...fxe4!
- 1...Sxe4
- 1.Qc6?
- threat
- 2.Sc4#
- 2.Qc3#
- 1...Sxa2
- 2.Sc4#
- 2.Qd5#
- 2.Qc5#
- 1...Sxc2
- 2.Sc4#
- 2.Qd5#
- 2.Qc5#
- 1...Bf7
- 2.Sxf7#
- 2.Qc3#
- 1...Sd5
- 2.Qxd5#
- 1...Rd1
- 2.Sc4#
- 2.f4#
- 1...Be2
- 2.Sf7#
- 2.Qe8#
- 2.Qc3#
- 1...Se2
- 2.Sc4#
- 2.Rxf5#
- 1...Se4
- 2.Sc4#
- 2.Rxf5#
- 1...Sxc6!
- threat
- 1.Qb7?
- threat
- 2.Qe7#
- 2.Qg7#
- 1...Sd5
- 2.Qxd5#
- 1...Se4
- 2.Rxf5#
- 2.Qe7#
- 1...Sc6
- 2.Qg7#
- 1...Bf7!
- threat
- 1.Qa7?
- threat
- 2.Qd4#
- 2.Qe7#
- 2.Qg7#
- 1...Sxc2
- 2.Qc5#
- 2.Qe7#
- 2.Qg7#
- 1...Bf7
- 2.Qd4#
- 1...Rd1
- 2.Qe7#
- 2.Qg7#
- 2.f4#
- 1...Se2
- 2.Rxf5#
- 2.Qe7#
- 2.Qg7#
- 1...Se4
- 2.Rxf5#
- 2.Qd4#
- 2.Qe7#
- 1...Sc6
- 2.Qc5#
- 2.Qg7#
- 1...Sd5!
- threat
- 1.Qe4+?
- Keys
- 1.Qh1!
- 1...Rxh1
- 2.f4#
- 1...Rxf2
- 2.Qa1#
- 1...Sxh1
- 2.Rxf5#
- 1...Sxa2
- 2.Qd5#
- 1...Sxc2
- 2.Qd5#
- 1...Bf7
- 2.Qh8#
- 1...Sd5
- 2.Qxd5#
- 1...Ra1
- 2.Qxa1#
- 2.f4#
- 1...Rb1
- 2.f4#
- 1...Rc1
- 2.f4#
- 1...Rd1
- 2.f4#
- 1...Re1
- 2.f4#
- 1...Rg1
- 2.f4#
- 1...Bd1
- 2.Qh8#
- 1...Be2
- 2.Qh8#
- 1...Bf3
- 2.Qh8#
- 1...Bg4
- 2.Qh8#
- 1...Bg6
- 2.Qh8#
- 1...Be8
- 2.Qh8#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sd3
- 2.Qd5#
- 1...Sa6
- 2.Qd5#
- 1...Sc6
- 2.Qd5#
- 1...f4
- 2.exf4#
- 1...Rxh1
- 1.Qh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::P(C)
- R(a);N_GUARD,P_PINP(B)::P(C)
- S(b);N_GUARD::R1(J),XP(e)
- S(c);N_GUARD,XP(A)::QAR1(H)
- S(c);N_GUARD,XP(B)::QAR1(H)
- S(c);N_GUARD::QAR1(H)
- S(c);N_GUARD::QAR1(H),XS(c)
- P(e);OGATE::P(E),XP(e)
- Tries
- Try
- Q(H);CHECK
- Vars
- S(b);XQ(H)::R1(J),XP(e)
- Refutation
- P(e);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAR1(H),XS(c)
- Refutation
- S(c);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAR1(H),XS(c)
- S(c);::QAB(H)
- Refutation
- B(f);
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- B(f);::QAB1(H)
- Refutation
- S(c);
- Try
- Actual
- Q(H);
- Vars
- R(a);N_GUARD,XQ(H)::P(C)
- R(a);OGATE,XP(C)::QAB(H)
- S(b);N_GUARD,XQ(H)::R1(J),XP(e)
- S(c);N_GUARD,XP(A)::QAR1(H)
- S(c);N_GUARD,XP(B)::QAR1(H)
- B(f);OGATE::QAB(H)
- S(c);N_GUARD::QAR1(H),XS(c)
- R(a);N_GUARD::P(C)
- R(a);N_GUARD,P_PINP(B)::P(C)
- S(b);N_GUARD::R1(J),XP(e)
- S(c);N_GUARD::QAR1(H)
- P(e);OGATE::P(E),XP(e)
Developed and maintained by Brian Stephenson.
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