MESON Chess Problem Database
Problem Display
PID: 4574 (1Q2R3/2rp4/1bp5/p1kn2p1/P1nR1pP1/5P1p/1P1pNN1B/K2B4 w - - 0 1)
Kidson, Henry Edwin
Illustrated London News, 1880
#2
12 + 12
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
| 4760 | 200 Classic Chess Puzzles | 1993 |
| 23 | Die Schwalbe | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Kb4
- 2.Sd3#
- 1...Kd6
- 2.Se4#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Rc8
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sxb2
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Sce3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sde3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...Se7
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...Kb4
- Tries
- 1.Bg1?
- 1...Kb4
- 2.Sd3#
- 1...Kd6
- 2.Se4#
- 1...Sxb2
- 2.Se4#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Rc8
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Sce3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sde3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...Se7
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...h2!
- 1...Kb4
- 1.Rxc4+?
- 1...Kd6
- 2.Se4#
- 1...Kxc4!
- 1...Kd6
- 1.Re5?
- 1...Kb4
- 2.Sd3#
- 1...Sxb2
- 2.Se4#
- 1...Sxe5
- 2.Se4#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Rc8
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Se3
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...Kd6!
- 1...Kb4
- 1.Re6?
- threat
- 2.Sd3#
- 1...Kb4
- 2.Sd3#
- 1...Sxb2
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sb4
- 2.Se4#
- 1...dxe6!
- threat
- 1.Re7?
- 1...Kb4
- 2.Sd3#
- 1...Sxb2
- 2.Se4#
- 1...Sxe7
- 2.Sd3#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Rc8
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Sce3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sde3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...Kd6!
- 1...Kb4
- 1.Rc8?
- 1...Kb4
- 2.Sd3#
- 1...Rxc8
- 2.Sd3#
- 1...Sxb2
- 2.Se4#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Sce3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sde3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...Se7
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...Kd6!
- 1...Kb4
- 1.Rd8?
- 1...Kb4
- 2.Sd3#
- 1...Sxb2
- 2.Se4#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Rc8
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Sce3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sde3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...Se7
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...Kd6!
- 1...Kb4
- 1.Rf8?
- 1...Kb4
- 2.Sd3#
- 1...Sxb2
- 2.Se4#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Rc8
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Sce3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sde3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...Se7
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...Kd6!
- 1...Kb4
- 1.Rg8?
- 1...Kb4
- 2.Sd3#
- 1...Sxb2
- 2.Se4#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Rc8
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Sce3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sde3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...Se7
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...Kd6!
- 1...Kb4
- 1.Rh8?
- 1...Kb4
- 2.Sd3#
- 1...Sxb2
- 2.Se4#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Rc8
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Sce3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sde3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...Se7
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...Kd6!
- 1...Kb4
- 1.Qxc7?
- threat
- 2.Sd3#
- 1...Kb4
- 2.Sd3#
- 1...Sxb2
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sb4
- 2.Se4#
- 1...Bxc7!
- threat
- 1.Qxb6+?
- 1...Kd6
- 2.Se4#
- 1...Scxb6
- 2.Se4#
- 1...Sdxb6
- 2.Sd3#
- 1...Kxb6!
- 1...Kd6
- 1.b3?
- 1...Kd6
- 2.Se4#
- 1...Ra7
- 2.Sd3#
- 2.Rxc4#
- 1...Rb7
- 2.Sd3#
- 2.Rxc4#
- 1...Rc8
- 2.Sd3#
- 2.Rxc4#
- 1...Ba7
- 2.Se4#
- 1...Sb2
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Sce3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sde3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...Se7
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 2.Rxc4#
- 1...Kb4!
- 1...Kd6
- 1.b4+?
- 1...Kd6
- 2.Se4#
- 1...Sxb4
- 2.Se4#
- 1...axb4
- 2.Se4#
- 1...Kxb4!
- 1...Kd6
- 1.Bg1?
- Keys
- 1.Re3!
- 1...Kb4
- 2.Sd3#
- 1...Kd6
- 2.Qf8#
- 1...Sxb2
- 2.Se4#
- 1...Scxe3
- 2.Se4#
- 1...Sdxe3
- 2.Sd3#
- 1...fxe3
- 2.Sd3#
- 1...Ra7
- 2.Sd3#
- 1...Rb7
- 2.Sd3#
- 1...Rc8
- 2.Sd3#
- 1...Ba7
- 2.Se4#
- 1...Sa3
- 2.Se4#
- 1...Se5
- 2.Se4#
- 1...Sd6
- 2.Sd3#
- 1...Sc3
- 2.Sd3#
- 1...Sb4
- 2.Se4#
- 1...Sf6
- 2.Sd3#
- 1...Se7
- 2.Sd3#
- 1...d6
- 2.Sd3#
- 1...Kb4
- 1.Re3!
There are these versions: 106829
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT::S(E)
- R(k);::S(E)
- B(i);::S(E)
- S(c);XP(C)::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- P(l);SBLOCK::S(E)
- Tries
- Try
- B(F);
- Vars
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- K(f);P_SPINR(k),P_SPINS(g),S_FLIGHT::S(E)
- S(c);XP(C)::S(E)
- R(k);::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- P(l);SBLOCK::S(E)
- Refutation
- P(b);
- Try
- R(I);CHECK,XS(c)
- Vars
- K(f);P_SPINP(d),P_SPINR(k),S_FLIGHT::S(E)
- Refutation
- K(f);P-FLIGHT,XR(I)
- Try
- R(L);P_PINS(g)
- Vars
- K(f);N_SPINS(g),P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- S(c);XP(C)::S(E)
- S(c);N_SPINS(g),XR(L)::S(E)
- R(k);::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- P(l);SBLOCK::S(E)
- Refutation
- K(f);P_SPINR(k),S_FLIGHT
- Try
- R(L);
- Threat
- S(E)
- Vars
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- S(c);XP(C)::S(E)
- S(c);::S(E)
- S(g);SBLOCK::S(E)
- Refutation
- P(l);XR(L)
- Try
- R(L);
- Vars
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- S(c);XP(C)::S(E)
- S(g);XR(L)::S(E)
- R(k);::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- P(l);SBLOCK::S(E)
- Refutation
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT
- Try
- R(L);
- Vars
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- R(k);XR(L)::S(E)
- S(c);XP(C)::S(E)
- R(k);P_SPINP(j)::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- P(l);SBLOCK::S(E)
- Refutation
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT
- Try
- R(L);
- Vars
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- S(c);XP(C)::S(E)
- R(k);::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- P(l);::S(E)
- Refutation
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT
- Try
- R(L);
- Vars
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- S(c);XP(C)::S(E)
- R(k);::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- P(l);SBLOCK::S(E)
- Refutation
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT
- Try
- R(L);
- Vars
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- S(c);XP(C)::S(E)
- R(k);::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- P(l);SBLOCK::S(E)
- Refutation
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT
- Try
- R(L);
- Vars
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- S(c);XP(C)::S(E)
- R(k);::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- P(l);SBLOCK::S(E)
- Refutation
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT
- Try
- Q(K);P_PINP(j),XR(k)
- Threat
- S(E)
- Vars
- K(f);N_SPINP(j),P_SPINS(c),S_FLIGHT::S(E)
- S(c);XP(C)::S(E)
- S(c);::S(E)
- S(g);SBLOCK::S(E)
- Refutation
- B(i);N_SPINP(j),XQ(K)
- Try
- Q(K);CHECK,XB(i)
- Vars
- K(f);P_SPINP(d),P_SPINS(g),S_FLIGHT::S(E)
- S(c);SBLOCK,XQ(K)::S(E)
- S(g);SBLOCK,XQ(K)::S(E)
- Refutation
- K(f);S_FLIGHT,XQ(K)
- Try
- P(C);
- Vars
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- Refutation
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT
- Try
- P(C);CHECK
- Vars
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT::S(E)
- S(g);SBLOCK,XP(C)::S(E)
- P(e);SBLOCK,XP(C)::S(E)
- Refutation
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT,XP(C)
- Try
- Actual
- R(L);
- Vars
- K(f);P_SPINB(i),P_SPINS(c),S_FLIGHT::S(E)
- K(f);P_SPINP(d),P_SPINR(k),P_SPINS(g),S_FLIGHT::QAB(K)
- S(c);XP(C)::S(E)
- S(c);XR(L)::S(E)
- S(g);XR(L)::S(E)
- P(d);XR(L)::S(E)
- R(k);::S(E)
- B(i);::S(E)
- S(c);::S(E)
- S(c);SBLOCK::S(E)
- S(g);::S(E)
- S(g);SBLOCK::S(E)
- P(l);SBLOCK::S(E)
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