MESON Chess Problem Database
Problem Display
PID: 68098 (5N2/8/2R2b2/3p4/3kpP2/3P2Nq/K2BPr1r/3R2Q1 w - - 0 1)
Ducak, Jan
1st HM., Pravda - Tirnavia, 1983-1984
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Sf5#
- 2.Se6#
- 1...Qg2
- 2.Sf5#
- 2.Se6#
- 1...Qf5
- 2.Sxf5#
- 1...Qe6
- 2.Sxe6#
- 1...Qxg3
- 2.Se6#
- 1...Qh4
- 2.Sf5#
- 2.Se6#
- 1...Qh5
- 2.Se6#
- 1...Qh6
- 2.Sf5#
- 2.Se6#
- 1...Qh7
- 2.Se6#
- 1...Qh8
- 2.Sf5#
- 2.Se6#
- 1...exd3
- 2.e3#
- 1...e3
- 2.Bc3#
- 1...Qf1
- Tries
- 1.Sf1?
- threat
- 2.Bc3#
- 1...Qxf1
- 2.Se6#
- 1...exd3!
- threat
- 1.Rc3?
- threat
- 2.e3#
- 1...Qxg3
- 2.Se6#
- 1...e3!
- threat
- 1.Qxf2+?
- 1...e3
- 2.Bc3#
- 2.Bxe3#
- 2.Qxe3#
- 1...Rxf2!
- 1...e3
- 1.dxe4?
- threat
- 2.Bc1#
- 1...Qf1
- 2.Se6#
- 1...Qxg3!
- threat
- 1.Sf1?
- Keys
- 1.Bc1!
- threat
- 2.dxe4#
- 1...Qxg3
- 2.Se6#
- 1...exd3
- 2.Rxd3#
- 1...Qf1
- 2.Sf5#
- 2.Se6#
- 1...e3
- 2.Bb2#
- threat
- 1.Bc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- Q(c);N_GUARD::S(G),XQ(c)
- Q(c);N_GUARD::S(J),XQ(c)
- Q(c);N_GUARD,XS(G)::S(J)
- Q(c);N_GUARD::S(J)
- P(e);SBLOCK,XP(F)::P(E)
- P(e);N_SPINR(a),SBLOCK::B(D)
- Tries
- Try
- S(G);
- Threat
- B(D)
- Vars
- Q(c);N_GUARD,XS(G)::S(J)
- Refutation
- P(e);XP(F)
- Try
- R(I);
- Threat
- P(E)
- Vars
- Q(c);N_GUARD,XS(G)::S(J)
- Refutation
- P(e);N_SPINR(a)
- Try
- Q(B);CHECK,XR(a)
- Refutation
- R(b);XQ(B)
- Try
- P(F);XP(e)
- Threat
- R(A)+B(D)
- Vars
- Q(c);N_GUARD::S(J)
- Refutation
- Q(c);XS(G)
- Try
- Actual
- B(D);P_SPINP(E)
- Threat
- R(A)+P(F),XP(e)
- Vars
- Q(c);N_GUARD,XS(G)::S(J)
- P(e);OGATE,P_SPINP(e),XP(F)::R1(A),XP(e)
- P(e);N_SPINR(a),SBLOCK::B(D)
Developed and maintained by Brian Stephenson.
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