MESON Chess Problem Database
Problem Display
PID: 146806 (8/5Q1K/2N3pp/PR1n2q1/P1kN1PR1/3n3r/1PPp1p2/4bB2 w - - 0 1)
Simadhinata, Januarta (Siem Giok Liam)
Canadian Chess Chat, 1983
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Qxf4
- 2.Qxd5#
- 1...Qh4
- 2.Qxd5#
- 1...Qf6
- 2.Qxd5#
- 1...Qxg4
- 2.Qxd5#
- 1...Rh1
- 2.Bxd3#
- 2.cxd3#
- 1...Rh2
- 2.Bxd3#
- 2.cxd3#
- 1...Rh4
- 2.Bxd3#
- 2.cxd3#
- 1...Rh5
- 2.Bxd3#
- 2.cxd3#
- 1...Qxf4
- Tries
- 1.Sb3?
- threat
- 2.Rb4#
- 2.Rc5#
- 2.fxg5#
- 1...Qxf4
- 2.Se5#
- 2.Rxf4#
- 2.Rb4#
- 2.Rc5#
- 2.Qxd5#
- 1...Qxg4
- 2.Se5#
- 2.Rb4#
- 2.Rc5#
- 2.Qxd5#
- 1...d1Q
- 2.Rc5#
- 1...d1S
- 2.Rc5#
- 2.fxg5#
- 1...d1B
- 2.Rc5#
- 1...d1R
- 2.Rc5#
- 2.fxg5#
- 1...Qh4
- 2.Se5#
- 2.Rb4#
- 2.Rc5#
- 2.Qxd5#
- 1...Qf6
- 2.Rb4#
- 2.Rc5#
- 2.Qxd5#
- 1...Qd8
- 2.Se5#
- 2.Rb4#
- 2.Rc5#
- 2.f5#
- 1...Qe5
- 2.Sxe5#
- 2.Rb4#
- 2.Rc5#
- 2.fxe5#
- 1...Qf5
- 2.Rb4#
- 2.Rc5#
- 1...Qh5
- 2.Rb4#
- 2.Rc5#
- 1...Re3
- 2.Rb4#
- 2.Rc5#
- 1...Rf3
- 2.Rb4#
- 2.Rc5#
- 1...Rg3
- 2.Rb4#
- 2.Rc5#
- 1...Rh4
- 2.Bxd3#
- 2.Rb4#
- 2.Rc5#
- 2.cxd3#
- 1...h5
- 2.Rb4#
- 2.Rc5#
- 1...Qe7!
- threat
- 1.Se6?
- threat
- 2.Rc5#
- 1...Sxf4
- 2.Sxg5#
- 1...Qe7
- 2.Se5#
- 1...Sc3
- 2.b3#
- 1...Se3
- 2.Bxd3#
- 2.cxd3#
- 1...Sb4
- 2.fxg5#
- 1...Sb6
- 2.fxg5#
- 1...Sc7
- 2.fxg5#
- 1...Se7
- 2.fxg5#
- 1...Sf6+!
- threat
- 1.fxg5?
- threat
- 2.Sb3#
- 2.Sf3#
- 2.Sf5#
- 2.Se5#
- 2.Qxd5#
- 1...d1Q
- 2.Sf3#
- 2.Se5#
- 2.Qxd5#
- 1...d1B
- 2.Sf3#
- 2.Se5#
- 2.Qxd5#
- 1...Re3
- 2.Qxd5#
- 1...Rf3
- 2.Sxf3#
- 2.Se5#
- 2.Qxd5#
- 1...Rg3
- 2.Se5#
- 2.Qxd5#
- 1...Rh4
- 2.Se5#
- 2.Bxd3#
- 2.Qxd5#
- 2.cxd3#
- 1...h5
- 2.Se5#
- 2.Qxd5#
- 1...hxg5+!
- threat
- 1.f5?
- threat
- 2.Se5#
- 2.Qxd5#
- 1...Qxg4
- 2.Qxd5#
- 1...Qxf5
- 2.Sxf5#
- 1...Qe3
- 2.Qxd5#
- 1...Qf4
- 2.Qxd5#
- 1...Qf6
- 2.Qxd5#
- 1...Qd8
- 2.Sb3#
- 2.Sf3#
- 2.Se5#
- 1...Re3
- 2.Qxd5#
- 1...Qe7!
- threat
- 1.Sb3?
- Keys
- 1.Se2!
- threat
- 2.b3#
- 1...Sxb2
- 2.fxg5#
- 1...Sxf4
- 2.Sg3#
- 1...Sc1
- 2.fxg5#
- 1...Sb4
- 2.fxg5#
- 1...Sc5
- 2.Rb4#
- 1...Se5
- 2.Qxd5#
- threat
- 1.Se2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 4
- Sets
- Q(h);N_GUARD,XP(F)::QAB1(K),XS(g)
- Q(h);N_GUARD::QAB1(K),XS(g)
- Q(h);N_GUARD,XR(G)::QAB1(K),XS(g)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- P(b);::R1(I)
- Refutation
- Q(h);P_PINQ(K)
- Try
- S(E);
- Threat
- R1(I)
- Vars
- S(g);XP(F)::QAB(K)+S(E),XQ(h)
- Q(h);N_GUARD,P_PINQ(K)::S(J)
- S(g);SBLOCK::P(B)
- S(g);N_GUARD::R(G)+P(F),XQ(h)
- Refutation
- S(g);CHECK
- Try
- P(F);XQ(h)
- Threat
- DUALS(5)
- Vars
- R(e);::QAB1(K),XS(g)
- Refutation
- P(j);CHECK,XP(F)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- Q(h);XR(G)::QAB1(K),XS(g)
- Q(h);XP(F)::R(G)+S(E),XQ(h)
- Q(h);::QAB1(K),XS(g)
- R(e);::QAB1(K),XS(g)
- Refutation
- Q(h);P_PINQ(K)
- Try
- Actual
- S(E);N_PINS(d),P_PINS(g)
- Threat
- P(B)
- Vars
- S(d);N_GUARD,XP(B)::R(G)+P(F),XQ(h)
- S(d);N_SPINS(g),P_SPINS(d),XP(F)::B(A)+S(E)
- S(d);N_GUARD::R(G)+P(F),XQ(h)
- S(d);N_GUARD,SBLOCK::R1(I)
- S(d);S_CUTQ(h)::QAB1(K),XS(g)
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