MESON Chess Problem Database
Problem Display
PID: 43046 (3n1K2/p2Q4/b3p3/2P1pp2/pPkN1r1R/P1N3R1/P4n2/4B3 w - - 0 1)
Vaughan, Colin V
British Chess Magazine, 1976
#2
11 + 10
SOLUTION
- SOUND
- Tries
- 1.Sd1?
- threat
- 2.Sb2#
- 2.Rc3#
- 1...exd4
- 2.Sb2#
- 1...Rf3
- 2.Sb2#
- 1...Sd3
- 2.Se3#
- 1...Se4
- 2.Sb2#
- 1...Sxd1!
- threat
- 1.Sc2?
- threat
- 2.Se3#
- 1...Sd1
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Rd4!
- threat
- 1.Sb3?
- threat
- 2.Sd2#
- 2.Sa5#
- 1...Sd3
- 2.Sa5#
- 2.Qxd3#
- 1...Se4
- 2.Sa5#
- 2.Qd3#
- 1...Sc6
- 2.Sd2#
- 2.Qxe6#
- 1...Sb7
- 2.Sd2#
- 2.Qxe6#
- 1...axb3!
- threat
- 1.Sf3?
- threat
- 2.Sd2#
- 2.Sxe5#
- 1...Se4
- 2.Sxe5#
- 1...Sg4
- 2.Sd2#
- 1...Sc6
- 2.Sd2#
- 1...Sf7
- 2.Sd2#
- 1...e4
- 2.Sd2#
- 2.Se5#
- 2.Qd4#
- 1...Sd3!
- threat
- 1.Sc6?
- threat
- 2.Sa5#
- 2.Sxe5#
- 1...Sd3
- 2.Sa5#
- 2.Qxd3#
- 1...Sg4
- 2.Sa5#
- 2.Qd3#
- 1...Sb7
- 2.Sxe5#
- 2.Qxe6#
- 1...Sf7
- 2.Sa5#
- 2.Qxe6#
- 1...e4
- 2.Sa5#
- 2.Se5#
- 2.Qd4#
- 1...Sxc6!
- threat
- 1.Sxe6?
- threat
- 2.Qd5#
- 1...Bb7
- 2.Qb5#
- 1...Sxe6+!
- threat
- 1.Qb5+?
- 1...Kxd4
- 2.Bxf2#
- 1...Bxb5!
- 1...Kxd4
- 1.Qxe6+?
- 1...Kxd4
- 2.Bxf2#
- 2.Qd5#
- 1...Sxe6+!
- 1...Kxd4
- 1.Sd1?
- Keys
- 1.Sxf5!
- 1...Rxh4
- 2.Se3#
- 1...exf5
- 2.Qd5#
- 1...Sd3
- 2.Qxd3#
- 1...Rd4
- 2.Sd6#
- 1...Re4
- 2.Se3#
- 1...Rg4
- 2.Se3#
- 1...Bb5
- 2.Qxb5#
- 1...Bb7
- 2.Qb5#
- 1...Bc8
- 2.Qb5#
- 1...Sd1
- 2.Qd3#
- 1...Sh1
- 2.Qd3#
- 1...Sh3
- 2.Qd3#
- 1...Se4
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Qxe6#
- 1...Sb7
- 2.Qxe6#
- 1...Sf7
- 2.Se3#
- 2.Qxe6#
- 1...e4
- 2.Qd4#
- 1...Rxh4
- 1.Sxf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 17
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(e);XS(G)::S(D)
- R(d);::S(D)
- S(a);SBLOCK::S(D)
- S(a);::S(D)
- Refutation
- S(a);XS(D)
- Try
- S(G);P_PINR(d)
- Threat
- S(G)
- Vars
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD,N_SPINR(d)::QAB1(J)
- Refutation
- R(d);
- Try
- S(G);P_PINR(d)
- Threat
- DUALS(2)
- Refutation
- P(b);XS(G)
- Try
- S(G);P_PINR(d)
- Threat
- DUALS(2)
- Vars
- S(a);N_SPINR(d)::S(G),XP(e)
- S(a);N_SPINR(d)::S(G)
- S(j);::S(G)
- Refutation
- S(a);
- Try
- S(G);P_PINR(d)
- Threat
- DUALS(2)
- Refutation
- S(j);XS(G)
- Try
- S(G);P_PINR(d),XP(h)
- Threat
- QAB1(J)
- Vars
- B(g);N_GUARD::QAB1(J)
- Refutation
- S(j);CHECK,XS(G)
- Try
- Q(J);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINR(d),XS(G)::B(A),XS(a)
- Refutation
- B(g);XQ(J)
- Try
- Q(J);CHECK,XP(h)
- Refutation
- S(j);CHECK,XQ(J)
- Try
- Actual
- S(G);P_PINR(d),P_SPINS(G),XP(f)
- Vars
- R(d);N_PINS(G),N_SPINR(d),XR(H)::S(G)
- P(h);N_GUARD,XS(G)::QAB1(J)
- S(a);N_GUARD::QAB1(J),XS(a)
- R(d);N_PINS(G)::S(G)
- B(g);N_GUARD::QAB1(J),XB(g)
- B(g);N_GUARD::QAB1(J)
- S(a);N_GUARD::QAB1(J)
- S(a);N_GUARD,N_SPINR(d)::QAB1(J)
- S(j);N_GUARD::QAB(J),XP(h)
- P(e);N_GUARD,N_SPINR(d),S_CUTR(d)::QAR1(J)
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