MESON Chess Problem Database
Problem Display
PID: 442 (8/3Q4/p2prpp1/Rb3k2/2N1NP1R/3r4/3P1P1p/5K1B w - - 0 1)
Mansfield, Comins
The Observer, 1953
(First published on Sun Oct 18 1953)
#2
10 + 9
| 3550 | Complete Mansfield/II | 1997 |
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxd2
- 2.Sg3#
- 1...Ra3
- 2.Sxd6#
- 1...Rb3
- 2.Sxd6#
- 1...Rc3
- 2.Sxd6#
- 1...Re3
- 2.Sxd6#
- 1...Rf3
- 2.Sxd6#
- 1...Rg3
- 2.Sxg3#
- 2.Sxd6#
- 1...Rh3
- 2.Sxd6#
- 1...Rd4
- 2.Sg3#
- 1...Rd5
- 2.Sg3#
- 1...d5
- 2.Scd6#
- 2.Sed6#
- 1...g5
- 2.Qh7#
- 1...Rxd2
- Tries
- 1.Kg2?
- 1...Rg3+
- 2.Sxg3#
- 1...Rxd2
- 2.Sg3#
- 1...g5
- 2.Qh7#
- 1...Ra3
- 2.Scxd6#
- 2.Sexd6#
- 1...Rb3
- 2.Scxd6#
- 2.Sexd6#
- 1...Rc3
- 2.Scxd6#
- 2.Sexd6#
- 1...Re3
- 2.Scxd6#
- 2.Sexd6#
- 1...Rf3
- 2.Scxd6#
- 2.Sexd6#
- 1...Rh3
- 2.Scxd6#
- 2.Sexd6#
- 1...Rd4
- 2.Sg3#
- 1...Rd5
- 2.Sg3#
- 1...d5
- 2.Scd6#
- 2.Sed6#
- 1...Kxe4!
- 1...Rg3+
- 1.Rxb5+?
- 1...Rd5
- 2.Se3#
- 2.Scxd6#
- 2.Sg3#
- 2.Sexd6#
- 2.Rxd5#
- 1...d5
- 2.Scd6#
- 2.Sed6#
- 1...axb5!
- 1...Rd5
- 1.Qc8?
- 1...Rxd2
- 2.Sg3#
- 1...Rf3
- 2.Sxd6#
- 1...Re3
- 2.Sxd6#
- 1...Ra3
- 2.Sxd6#
- 1...Rb3
- 2.Sxd6#
- 1...Rc3
- 2.Sxd6#
- 1...Rg3
- 2.Sxg3#
- 2.Sxd6#
- 1...Rh3
- 2.Sxd6#
- 1...Rd4
- 2.Sg3#
- 1...Rd5
- 2.Sg3#
- 1...d5
- 2.Scd6#
- 2.Sed6#
- 1...g5!
- 1...Rxd2
- 1.f3?
- threat
- 2.Sg3#
- 1...g5
- 2.Qh7#
- 1...Rxf3+!
- threat
- 1.Kg2?
- Keys
- 1.Ke1!
- 1...Re3+
- 2.Sxe3#
- 1...Rxd2
- 2.Se3#
- 1...Rf3
- 2.Sxd6#
- 1...g5
- 2.Qh7#
- 1...Ra3
- 2.Sxd6#
- 1...Rb3
- 2.Sxd6#
- 1...Rc3
- 2.Sxd6#
- 1...Rg3
- 2.Sxd6#
- 1...Rh3
- 2.Sxd6#
- 1...Rd4
- 2.Se3#
- 1...Rd5
- 2.Se3#
- 1...d5
- 2.Sd6#
- 1...Re3+
- 1.Ke1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD,P_PINS(E),XP(C)::S(F)
- R(b);N_GUARD,P_PINS(E)::S(F),XP(f)
- R(b);N_GUARD,P_PINP(D),P_PINS(E)::S(F),XP(f)
- R(b);N_GUARD,P_PINS(E)::S(F)
- R(b);N_GUARD,N_SPINB(c),P_PINS(E)::S(F)
- P(i);OGATEB::QAB(J)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- R(b);CHECK,N_GUARD::S(F),XR(b)
- R(b);N_GUARD,P_PINP(D),XP(C)::S(F)
- P(i);OGATEB::QAB(J)
- R(b);N_GUARD::S(F)
- R(b);N_GUARD,N_SPINB(c)::S(F)
- Refutation
- K(d);N_SPINB(c),N_SPINR(g),S_FLIGHT,XS(F)
- Try
- R(I);CHECK,XB(c)
- Refutation
- P(e);XR(I)
- Try
- Q(J);
- Vars
- R(b);N_GUARD,P_PINS(E),XP(C)::S(F)
- R(b);N_GUARD,P_PINP(D),P_PINS(E)::S(F),XP(f)
- R(b);N_GUARD,P_PINS(E)::S(F),XP(f)
- R(b);N_GUARD,P_PINS(E)::S(F)
- R(b);N_GUARD,N_SPINB(c),P_PINS(E)::S(F)
- Refutation
- P(i);
- Try
- P(D);
- Threat
- S(F)
- Vars
- P(i);OGATEB::QAB(J)
- Refutation
- R(b);CHECK,P_PINS(E),XP(D)
- Try
- Actual
- K(A);P-FLIGHT,P_SPINS(F)
- Vars
- R(b);CHECK,N_GUARD,N_PINS(F)::S(E),XR(b)
- R(b);N_GUARD,XP(C)::S(E)
- R(b);N_GUARD::S(E),XP(f)
- P(i);OGATEB::QAB(J)
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,N_SPINB(c)::S(E)
- P(f);N_SPINB(c),S_CUTR(b)::S(E)
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