MESON Chess Problem Database
Problem Display
PID: 132754 (bbQRn1nr/2p2K1p/Rpk2p1p/pr3N1P/Pp6/1P6/6p1/6B1 w - - 0 1)
Maclay, J Neil
The Field, 1958
(First published on Thu Jul 17 1958)
#2
9 + 15
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Sd4#
- 1...Rd5
- 2.Rxb6#
- 1...Re5
- 2.Rxb6#
- 1...Rxf5
- 2.Rxb6#
- 1...Bb7
- 2.Qd7#
- 1...Ba7
- 2.Qxa8#
- 1...Sd6+
- 2.Rxd6#
- 1...Sg7
- 2.Rd6#
- 1...Se7
- 2.Sxe7#
- 1...Rc5
- Tries
- 1.Kf8?
- 1...Rxf5
- 2.Rxb6#
- 1...Sd6
- 2.Rxd6#
- 1...Rc5
- 2.Sd4#
- 1...Rd5
- 2.Rxb6#
- 1...Re5
- 2.Rxb6#
- 1...Bb7
- 2.Qd7#
- 1...Ba7
- 2.Qxa8#
- 1...Sg7
- 2.Rd6#
- 1...Se7+!
- 1...Rxf5
- 1.Ra7?
- threat
- 2.Qd7#
- 1...Sd6+
- 2.Rxd6#
- 1...Bxa7
- 2.Qxa8#
- 1...Rd5!
- threat
- 1.Rd1?
- 1...Sd6+
- 2.Rxd6#
- 1...Rxf5
- 2.Rxb6#
- 1...Rd5
- 2.Rxb6#
- 1...Re5
- 2.Rxb6#
- 1...Bb7
- 2.Qd7#
- 2.Qxe8#
- 1...Ba7
- 2.Qxa8#
- 1...Sg7
- 2.Rd6#
- 1...Se7
- 2.Sxe7#
- 1...Rc5!
- 1...Sd6+
- 1.Rd2?
- 1...Sd6+
- 2.Rxd6#
- 1...Rxf5
- 2.Rxb6#
- 1...Rd5
- 2.Rxb6#
- 1...Re5
- 2.Rxb6#
- 1...Bb7
- 2.Qd7#
- 2.Qxe8#
- 1...Ba7
- 2.Qxa8#
- 1...Sg7
- 2.Rd6#
- 1...Se7
- 2.Sxe7#
- 1...Rc5!
- 1...Sd6+
- 1.Rd3?
- 1...Sd6+
- 2.Rxd6#
- 1...Rxf5
- 2.Rxb6#
- 1...Rd5
- 2.Rxb6#
- 1...Re5
- 2.Rxb6#
- 1...Bb7
- 2.Qd7#
- 2.Qxe8#
- 1...Ba7
- 2.Qxa8#
- 1...Sg7
- 2.Rd6#
- 1...Se7
- 2.Sxe7#
- 1...Rc5!
- 1...Sd6+
- 1.Kf8?
- Keys
- 1.Rd5!
- 1...Sd6+
- 2.Rxd6#
- 1...Kxd5
- 2.Qe6#
- 1...Rxd5
- 2.Rxb6#
- 1...Rc5
- 2.Rxc5#
- 1...Bb7
- 2.Qd7#
- 1...Ba7
- 2.Qxa8#
- 1...Sg7
- 2.Rd6#
- 1...Se7
- 2.Sxe7#
- 1...Sd6+
- 1.Rd5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(d);SBLOCK::S(D)
- R(d);N_GUARD::R1(F),XP(e)
- R(d);N_GUARD,XS(D)::R1(F),XP(e)
- B(k);SBLOCK::QAB1(H)
- B(l);OGATE::QAB(H),XB(k)
- S(m);CHECK,N_GUARD::R1(I),XS(m)
- S(m);N_GUARD::R1(I)
- S(n);N_GUARD::S(D),XS(n)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- R(d);N_GUARD,XS(D)::R1(F),XP(e)
- S(m);N_GUARD::R1(I),XS(m)
- R(d);SBLOCK::S(D)
- R(d);N_GUARD::R1(F),XP(e)
- B(k);SBLOCK::QAB1(H)
- B(l);OGATE::QAB(H),XB(k)
- S(m);N_GUARD::R1(I)
- Refutation
- S(n);CHECK
- Try
- R(F);N_PINP(e),P_PINP(i)
- Threat
- QAB1(H)
- Vars
- S(m);CHECK,N_GUARD::R1(I),XS(m)
- B(l);OGATE,XR(F)::QAB(H),XB(k)
- Refutation
- R(d);
- Try
- R(I);
- Vars
- S(m);CHECK,N_GUARD::R1(I),XS(m)
- R(d);N_GUARD,XS(D)::R1(F),XP(e)
- R(d);N_GUARD::R1(F),XP(e)
- B(l);OGATE::QAB(H),XB(k)
- S(m);N_GUARD::R1(I)
- S(n);N_GUARD::S(D),XS(n)
- Refutation
- R(d);
- Try
- R(I);
- Vars
- S(m);CHECK,N_GUARD::R1(I),XS(m)
- R(d);N_GUARD,XS(D)::R1(F),XP(e)
- R(d);N_GUARD::R1(F),XP(e)
- B(l);OGATE::QAB(H),XB(k)
- S(m);N_GUARD::R1(I)
- S(n);N_GUARD::S(D),XS(n)
- Refutation
- R(d);
- Try
- R(I);
- Vars
- S(m);CHECK,N_GUARD::R1(I),XS(m)
- R(d);N_GUARD,XS(D)::R1(F),XP(e)
- R(d);N_GUARD::R1(F),XP(e)
- B(l);OGATE::QAB(H),XB(k)
- S(m);N_GUARD::R1(I)
- S(n);N_GUARD::S(D),XS(n)
- Refutation
- R(d);
- Try
- Actual
- R(I);
- Vars
- S(m);CHECK,N_GUARD::R1(I),XS(m)
- K(f);N_SPINP(e),S_FLIGHT,XR(I)::QAB1(H)
- R(d);N_GUARD,SBLOCK,XR(I)::R1(F),XP(e)
- R(d);N_GUARD::R1(I),XR(d)
- B(k);SBLOCK::QAB1(H)
- B(l);OGATE::QAB(H),XB(k)
- S(m);N_GUARD::R1(I)
- S(n);N_GUARD::S(D),XS(n)
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