MESON Chess Problem Database
Problem Display
PID: 53476 (2NR4/p1Bn4/3bpp2/1Ppk1p1R/2n5/1r2pPQ1/B1Np2K1/8 w - - 0 1)
McClelland, David C
The Chess Review, 1934
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qxd6#
- 1...Rb2
- 2.Qxd6#
- 1...Ra3
- 2.Qxd6#
- 1...Rc3
- 2.Qxd6#
- 1...Rd3
- 2.Qxd6#
- 1...Rb4
- 2.Qxd6#
- 1...Rxb5
- 2.Qxd6#
- 1...Bxg3
- 2.Se7#
- 1...Bf4
- 2.Se7#
- 1...Be5
- 2.Se7#
- 1...Bxc7
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...Se5
- 2.Se7#
- 1...Sb6
- 2.Se7#
- 1...Sb8
- 2.Se7#
- 1...Sf8
- 2.Se7#
- 1...e5
- 2.Qg8#
- 1...Rb1
- Tries
- 1.Bxb3?
- threat
- 2.Qxd6#
- 1...Bxg3
- 2.Se7#
- 1...Bxc7
- 2.Se7#
- 1...e5
- 2.Qg8#
- 1...Bf4
- 2.Se7#
- 1...Be5
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...Se5
- 2.Se7#
- 2.Rxd6#
- 1...Bf8!
- threat
- 1.Qf4?
- threat
- 2.Qe4#
- 1...Bxf4
- 2.Se7#
- 1...Be5
- 2.Se7#
- 1...Sce5
- 2.Sxe3#
- 1...Sde5
- 2.Se7#
- 1...e5!
- threat
- 1.Qh4?
- threat
- 2.Qe4#
- 1...Ke5
- 2.Qe4#
- 1...Bf4
- 2.Se7#
- 1...Be5
- 2.Se7#
- 1...Sce5
- 2.Sxe3#
- 1...Sde5
- 2.Se7#
- 1...e5!
- threat
- 1.Bxb3?
- Keys
- 1.Qg4!
- threat
- 2.Qe4#
- 1...Ke5
- 2.Qe4#
- 1...Bf4
- 2.Se7#
- 1...Be5
- 2.Se7#
- 1...Sce5
- 2.Sxe3#
- 1...Sde5
- 2.Se7#
- 1...e5
- 2.Qg8#
- threat
- 1.Qg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 13
- Sets
- R(b);P_SPINS(d)::QAR1(E),XB(h)
- R(b);P_SPINS(d),XP(F)::QAR1(E),XB(h)
- B(h);N_GUARD,P_SPINS(l),XQ(E)::S(I)
- B(h);N_GUARD,P_SPINS(l)::S(I)
- B(h);N_GUARD,N_SPINP(g),P_SPINS(l)::S(I)
- B(h);N_GUARD,P_SPINS(l),XB(H)::S(I)
- B(h);N_GUARD,P_SPINS(l)::S(I),XB(h)
- S(l);N_SPINP(g),P_SPINB(h)::S(I)
- S(l);P_SPINB(h)::S(I)
- P(i);N_SPINP(g),OGATEB,SBLOCK::QAB(E)
- Tries
- Try
- B(A);P_PINS(d),XR(b)
- Threat
- QAR1(E),XB(h)
- Vars
- B(h);N_GUARD,XQ(E)::S(I)
- B(h);N_GUARD,XB(H)::S(I)
- P(i);N_SPINP(g),OGATEB,SBLOCK::QAB(E)
- B(h);N_GUARD::S(I)
- B(h);N_GUARD,N_SPINP(g)::S(I)
- B(h);N_GUARD::S(I),XB(h)
- Refutation
- B(h);
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- B(h);N_GUARD,P_SPINS(l),XQ(E)::S(I)
- B(h);N_GUARD,N_SPINP(g),P_SPINS(l)::S(I)
- S(d);N_GUARD,N_SPINP(g),P_SPINR(b)::S(B),XP(c)
- S(l);N_SPINP(g),P_SPINB(h)::S(I)
- Refutation
- P(i);N_SPINP(g)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- K(f);P-FLIGHT,P_SPINB(h)::QAR1(E)
- B(h);N_GUARD,P_SPINS(l)::S(I)
- B(h);N_GUARD,N_SPINP(g),P_SPINS(l)::S(I)
- S(d);N_GUARD,N_SPINP(g),P_SPINR(b),SBLOCK::S(B),XP(c)
- S(l);N_SPINP(g),P_SPINB(h),SBLOCK::S(I)
- Refutation
- P(i);N_SPINP(g)
- Try
- Actual
- Q(E);
- Threat
- QAB1(E)
- Vars
- K(f);P-FLIGHT,P_SPINB(h)::QAR1(E)
- B(h);N_GUARD,P_SPINS(l)::S(I)
- B(h);N_GUARD,N_SPINP(g),P_SPINS(l)::S(I)
- S(d);N_GUARD,N_SPINP(g),P_SPINR(b),SBLOCK::S(B),XP(c)
- S(l);N_SPINP(g),P_SPINB(h),SBLOCK::S(I)
- P(i);N_SPINP(g),OGATEB,SBLOCK::QAB(E)
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