MESON Chess Problem Database
Problem Display
PID: 341 (8/8/5p2/5K2/2p5/2PkpQ2/1pnb4/1B1NB3 w - - 0 1)
Mansfield, Comins
The Observer, 1926
(First published on Sun Jul 25 1926)
#2
6 + 7
| 934 | Social Chess Quarterly (The) | 1934 |
| 3202 | Complete Mansfield/I | 1996 |
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Sf2#
- 1...Bxe1
- 2.Qxe3#
- 1...Bxc3
- 2.Qxe3#
- 1...Bc1
- Tries
- 1.Kf4?
- 1...Bxe1
- 2.Qxe3#
- 1...Bxc3
- 2.Qxe3#
- 1...Bc1
- 2.Sf2#
- 1...f5!
- 1...Bxe1
- 1.Kg4?
- 1...Bxe1
- 2.Qxe3#
- 1...Bxc3
- 2.Qxe3#
- 1...Bc1
- 2.Sf2#
- 1...f5+!
- 1...Bxe1
- 1.Ke6?
- 1...Bxe1
- 2.Qxe3#
- 1...Bxc3
- 2.Qxe3#
- 1...Bc1
- 2.Sf2#
- 1...f5!
- 1...Bxe1
- 1.Kxf6?
- 1...Bxe1
- 2.Qxe3#
- 1...Bc1
- 2.Sf2#
- 1...Bxc3+!
- 1...Bxe1
- 1.Kg6?
- 1...Bxe1
- 2.Qxe3#
- 1...Bxc3
- 2.Qxe3#
- 1...Bc1
- 2.Sf2#
- 1...f5!
- 1...Bxe1
- 1.Bf2?
- 1...Bxc3
- 2.Qxe3#
- 1...Be1
- 2.Qxe3#
- 1...Bc1!
- 1...Bxc3
- 1.Bg3?
- 1...Bxc3
- 2.Qxe3#
- 1...Be1
- 2.Qxe3#
- 1...Bc1!
- 1...Bxc3
- 1.Bh4?
- 1...Bxc3
- 2.Qxe3#
- 1...Be1
- 2.Qxe3#
- 1...Bc1!
- 1...Bxc3
- 1.Qg2?
- 1...Bxe1
- 2.Bxc2#
- 2.Qxc2#
- 1...Bc1
- 2.Bxc2#
- 2.Qxc2#
- 1...e2
- 2.Qe4#
- 2.Qd5#
- 1...Bxc3!
- 1...Bxe1
- 1.Qf2?
- 1...Bxe1
- 2.Bxc2#
- 2.Qxe3#
- 2.Qxc2#
- 1...Bxc3
- 2.Qxe3#
- 1...Bc1
- 2.Bxc2#
- 2.Qxc2#
- 1...e2
- 2.Qd4#
- 1...exf2!
- 1...Bxe1
- 1.Kf4?
- Keys
- 1.Sxe3!
- 1...Kxc3
- 2.Sxc2#
- 1...Bxe1
- 2.Sf1#
- 1...Bxc3
- 2.Sxc2#
- 1...Bxe3
- 2.Qf1#
- 1...Bc1
- 2.Bxc2#
- 1...Kxc3
- 1.Sxe3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(c);::S(B)
- B(c);N_GUARD,XB(C)::QAR1(E),XP(e)
- B(c);N_GUARD,XP(D)::QAR1(E),XP(e)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- B(c);N_GUARD,XB(C)::QAR1(E),XP(e)
- B(c);N_GUARD,XP(D)::QAR1(E),XP(e)
- B(c);::S(B)
- Refutation
- P(g);
- Try
- K(F);S_FLIGHT
- Vars
- B(c);N_GUARD,XB(C)::QAR1(E),XP(e)
- B(c);N_GUARD,XP(D)::QAR1(E),XP(e)
- B(c);::S(B)
- Refutation
- P(g);CHECK
- Try
- K(F);S_FLIGHT
- Vars
- B(c);N_GUARD,XB(C)::QAR1(E),XP(e)
- B(c);N_GUARD,XP(D)::QAR1(E),XP(e)
- B(c);::S(B)
- Refutation
- P(g);
- Try
- K(F);P-FLIGHT,XP(g)
- Vars
- B(c);N_GUARD,XB(C)::QAR1(E),XP(e)
- B(c);::S(B)
- Refutation
- B(c);CHECK,XP(D)
- Try
- K(F);S_FLIGHT
- Vars
- B(c);N_GUARD,XB(C)::QAR1(E),XP(e)
- B(c);N_GUARD,XP(D)::QAR1(E),XP(e)
- B(c);::S(B)
- Refutation
- P(g);
- Try
- B(C);
- Vars
- B(c);N_GUARD,XP(D)::QAR1(E),XP(e)
- B(c);N_GUARD::QAR1(E),XP(e)
- Refutation
- B(c);
- Try
- B(C);
- Vars
- B(c);N_GUARD,XP(D)::QAR1(E),XP(e)
- B(c);N_GUARD::QAR1(E),XP(e)
- Refutation
- B(c);
- Try
- B(C);
- Vars
- B(c);N_GUARD,XP(D)::QAR1(E),XP(e)
- B(c);N_GUARD::QAR1(E),XP(e)
- Refutation
- B(c);
- Try
- Q(E);N_PINP(e)
- Refutation
- B(c);XP(D)
- Try
- Q(E);N_PINP(e)
- Vars
- B(c);N_GUARD,XP(D)::QAR1(E),XP(e)
- P(e);OGATE,SBLOCK::QAR1(E)
- Refutation
- P(e);XQ(E)
- Try
- Actual
- S(B);XP(e)
- Vars
- K(d);N_SPINS(b),P-FLIGHT,P_SPINB(c),XP(D)::QAR(E)+S(B),XS(b)
- B(c);N_GUARD,XB(C)::QAR(E)+S(B)
- B(c);N_GUARD,XP(D)::QAR(E)+S(B),XS(b)
- B(c);P_SPINB(c),SBLOCK,XS(B)::QAB(E)
- B(c);::B(A),XS(b)
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