MESON Chess Problem Database
Problem Display
PID: 98607 (2B1nB2/1nrp1pp1/1Rp1kp2/1N2bpP1/2PPNP2/p4R2/8/K3Q3 w - - 0 1)
Prins, Hendrik
US Problem Bulletin, 1989
#2
12 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxd4+
- 2.Sxd4#
- 1...Bxf4
- 2.Sc5#
- 1...Bd6
- 2.Sc5#
- 2.Sexd6#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sbd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sed6
- 2.Sxc7#
- 1...fxe4
- 2.f5#
- 1...Bxd4+
- Tries
- 1.Kb1?
- threat
- 2.d5#
- 1...Bxd4
- 2.Sc5#
- 2.Sxd4#
- 1...Bxf4
- 2.Sc5#
- 1...fxe4
- 2.f5#
- 1...Bd6
- 2.Sc5#
- 2.Sexd6#
- 1...Sbd6
- 2.Sc5#
- 1...Sed6
- 2.Sxc7#
- 1...a2+!
- threat
- 1.Sec3?
- threat
- 2.d5#
- 1...fxg5
- 2.Qxe5#
- 1...Sed6
- 2.Sxc7#
- 1...Sbd6!
- threat
- 1.Sbc3?
- threat
- 2.d5#
- 1...Bxd4
- 2.Sc5#
- 1...Bxf4
- 2.Sc5#
- 1...fxe4
- 2.f5#
- 1...Bd6
- 2.Sc5#
- 2.Sxd6#
- 1...Sbd6
- 2.Sc5#
- 1...Sed6!
- threat
- 1.Sxc7+?
- 1...Bxc7
- 2.Sc5#
- 2.Sd6#
- 2.d5#
- 1...Sxc7!
- 1...Bxc7
- 1.Rc3?
- threat
- 2.d5#
- 1...Bxd4
- 2.Sc5#
- 2.Sxd4#
- 1...Bxf4
- 2.Sc5#
- 1...Bd6
- 2.Sc5#
- 2.Sexd6#
- 1...Sbd6
- 2.Sc5#
- 1...Sed6
- 2.Sxc7#
- 1...fxe4!
- threat
- 1.Rxc6+?
- 1...Bd6
- 2.Sd2#
- 2.Sf2#
- 2.Sec3#
- 2.Sg3#
- 2.Sc5#
- 2.Sexd6#
- 2.Sxf6#
- 2.d5#
- 1...Sbd6
- 2.Sc5#
- 1...Sed6
- 2.Sxc7#
- 1...Rxc6!
- 1...Bd6
- 1.Qc3?
- threat
- 2.d5#
- 1...Bxd4
- 2.Sxd4#
- 1...fxe4
- 2.f5#
- 1...Sbd6
- 2.Sc5#
- 1...Sed6
- 2.Sxc7#
- 1...Bd6!
- threat
- 1.Qb4?
- threat
- 2.Qe7#
- 1...Bxd4+
- 2.Sxd4#
- 1...fxe4
- 2.f5#
- 1...Sc5
- 2.Sxc5#
- 1...Sbd6
- 2.Sc5#
- 1...Sed6
- 2.Sxc7#
- 1...Bd6!
- threat
- 1.Kb1?
- Keys
- 1.Ka2!
- threat
- 2.d5#
- 1...Bxd4
- 2.Sc5#
- 2.Sxd4#
- 1...Bxf4
- 2.Sc5#
- 1...fxe4
- 2.f5#
- 1...Bd6
- 2.Sc5#
- 2.Sexd6#
- 1...Sbd6
- 2.Sc5#
- 1...Sed6
- 2.Sxc7#
- threat
- 1.Ka2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- B(b);CHECK,XP(E)::S(H),XB(b)
- B(b);N_PINP(E),XP(G)::QAR(B)+S(F),DCHECK
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- S(g);N_GUARD,N_SPINP(d),P_SPINP(i)::S(F)
- S(l);N_GUARD,N_SPINP(d),P_SPINP(i),S_CUTB(b)::S(H),XR(h)
- P(c);OGATE,XS(F)::P(G)
- Tries
- Try
- K(A);N_SPINP(E),P-FLIGHT
- Threat
- P(E)
- Vars
- B(b);XP(G)::QAR(B)+S(F),DCHECK
- P(c);OGATE,XS(F)::P(G)
- S(g);N_GUARD,N_SPINP(d),P_SPINP(i)::S(F)
- S(l);N_GUARD,N_SPINP(d),P_SPINP(i),S_CUTB(b)::S(H),XR(h)
- Refutation
- P(a);CHECK
- Try
- S(F);N_SPINP(E),P_PINB(b)
- Threat
- P(E)
- Vars
- P(f);N_GUARD,XP(I)::QAR1(B),XB(b)
- S(l);N_GUARD,N_SPINP(d),P_SPINP(i)::S(H),XR(h)
- Refutation
- S(g);N_SPINP(d),P_SPINP(i)
- Try
- S(H);N_SPINP(E)
- Threat
- P(E)
- Vars
- B(b);P_PINS(H),XP(E)::QAR(B)+S(F),DCHECK
- B(b);XP(G)::QAR(B)+S(F),DCHECK
- P(c);OGATE,XS(F)::P(G)
- S(g);N_GUARD,N_SPINP(d),P_SPINP(i)::S(F)
- Refutation
- S(l);N_SPINP(d),P_SPINP(i)
- Try
- S(H);CHECK,XR(h)
- Refutation
- S(l);XS(H)
- Try
- R(C);N_SPINP(E)
- Threat
- P(E)
- Vars
- B(b);XP(G)::QAR(B)+S(F),DCHECK
- S(g);N_GUARD,N_SPINP(d),P_SPINP(i)::S(F)
- S(l);N_GUARD,N_SPINP(d),P_SPINP(i),S_CUTB(b)::S(H),XR(h)
- Refutation
- P(c);XS(F)
- Try
- R(J);CHECK,P_PINP(i),XP(d)
- Vars
- S(g);P_SPINS(g)::S(F)
- S(l);P_SPINS(l)::S(H),XR(h)
- Refutation
- R(h);XR(J)
- Try
- Q(B);N_SPINP(E)
- Threat
- P(E)
- Vars
- B(b);P_PINQ(B),XP(E)::S(H),XB(b)
- P(c);OGATE,XS(F)::P(G)
- S(g);N_GUARD,N_SPINP(d),P_SPINP(i)::S(F)
- S(l);N_GUARD,N_SPINP(d),P_SPINP(i),S_CUTB(b)::S(H),XR(h)
- Refutation
- B(b);N_SPINP(d),P_SPINP(i)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- B(b);CHECK,XP(E)::S(H),XB(b)
- P(c);OGATE,XS(F)::P(G)
- S(g);N_GUARD::S(F),XS(g)
- S(g);N_GUARD,N_SPINP(d),P_SPINP(i)::S(F)
- S(l);N_GUARD,N_SPINP(d),P_SPINP(i),S_CUTB(b)::S(H),XR(h)
- Refutation
- B(b);N_PINP(E),N_SPINP(d),P_SPINP(i)
- Try
- Actual
- K(A);N_SPINP(E),P-FLIGHT
- Threat
- P(E)
- Vars
- B(b);XP(G)::QAR(B)+S(F),DCHECK
- P(c);OGATE,XS(F)::P(G)
- S(g);N_GUARD,N_SPINP(d),P_SPINP(i)::S(F)
- S(l);N_GUARD,N_SPINP(d),P_SPINP(i),S_CUTB(b)::S(H),XR(h)
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