MESON Chess Problem Database
Problem Display
PID: 250966 (5B2/1qP2n1K/rp2NQN1/pP1kp1p1/R4b2/8/2P1n3/7b w - - 0 1)
Paliulionis, Viktoras
Probleemblad, 1981
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Qxc7
- 2.Sxc7#
- 1...Be4
- 2.c4#
- 1...Sd6
- 2.Se7#
- 1...e4
- 2.c4#
- 1...Qxc7
- Tries
- 1.Sexf4+?
- 1...exf4
- 2.Qxf7#
- 1...gxf4
- 2.Qxf7#
- 1...Sxf4!
- 1...exf4
- 1.Sxg5?
- threat
- 2.Qe6#
- 2.Qxf7#
- 1...Qxc7
- 2.Qe6#
- 1...Bxg5
- 2.Qxf7#
- 1...Sd6
- 2.Qxd6#
- 1...Qc6
- 2.Qxc6#
- 1...Qc8
- 2.Qc6#
- 1...Sd4
- 2.c4#
- 1...Sh6
- 2.Qd8#
- 2.Qd6#
- 2.Qe6#
- 1...Sd8
- 2.Qxd8#
- 2.Qd6#
- 1...Sh8
- 2.Qd8#
- 2.Qd6#
- 2.Qe6#
- 1...Sxg5+!
- threat
- 1.Sg7?
- threat
- 2.Qe6#
- 2.Qxf7#
- 1...Qxc7
- 2.Qe6#
- 1...Sd6
- 2.Qxd6#
- 1...Qc6
- 2.Qxc6#
- 1...Qc8
- 2.Qc6#
- 1...Sh6
- 2.Qd8#
- 2.Qd6#
- 2.Qe6#
- 1...Sd8
- 2.Qxd8#
- 2.Qd6#
- 1...Sh8
- 2.Qd8#
- 2.Qd6#
- 2.Qe6#
- 1...Sd4!
- threat
- 1.Sd8?
- threat
- 2.Qe6#
- 2.Qxf7#
- 1...Qxc7
- 2.Qe6#
- 1...Sxd8
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Qc6
- 2.Qxc6#
- 1...Qc8
- 2.Qc6#
- 1...Sh6
- 2.Qd6#
- 2.Qe6#
- 1...Sh8
- 2.Qd6#
- 2.Qe6#
- 1...Sd4!
- threat
- 1.Ba3?
- threat
- 2.Se7#
- 1...Qxc7
- 2.Sxc7#
- 1...Be4
- 2.c4#
- 1...Sd4!
- threat
- 1.Qf5?
- threat
- 2.c4#
- 1...Qxc7
- 2.Sxc7#
- 1...Sc3
- 2.Rd4#
- 1...Sd6
- 2.Se7#
- 1...Qc6!
- threat
- 1.Qxf7?
- threat
- 2.Sexf4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sg7#
- 2.Sd8#
- 2.Qd7#
- 1...Qxc7
- 2.Sexf4#
- 2.Sxc7#
- 1...Qc6
- 2.Sexf4#
- 1...Qc8
- 2.Sexf4#
- 1...Bc1
- 2.Sef4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sg7#
- 2.Sd8#
- 2.Qd7#
- 1...Bd2
- 2.Sef4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sg7#
- 2.Sd8#
- 2.Qd7#
- 1...Bh2
- 2.Sef4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sg7#
- 2.Sd8#
- 2.Qd7#
- 1...Be3
- 2.Sef4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sg7#
- 2.Sd8#
- 2.Qd7#
- 1...Bg3
- 2.Sef4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sg7#
- 2.Sd8#
- 2.Qd7#
- 1...e4
- 2.Sd4#
- 2.Sexf4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sg7#
- 2.Sd8#
- 2.c4#
- 1...g4
- 2.Sexf4#
- 2.Sc5#
- 2.Sg5#
- 2.Sg7#
- 2.Sd8#
- 2.Qd7#
- 1...Sd4!
- threat
- 1.Sexf4+?
- Keys
- 1.Sc5!
- threat
- 2.Qe6#
- 2.Qxf7#
- 1...Qxc7
- 2.Qe6#
- 1...bxc5
- 2.Se7#
- 1...Sd6
- 2.Qxd6#
- 1...Qc6
- 2.Qxc6#
- 1...Qc8
- 2.Qc6#
- 1...Sd4
- 2.c4#
- 1...Sh6
- 2.Qd8#
- 2.Qd6#
- 2.Qe6#
- 1...Sd8
- 2.Qxd8#
- 2.Qd6#
- 1...Sh8
- 2.Qd8#
- 2.Qd6#
- 2.Qe6#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- Q(j);XP(G)::S(D),XQ(j)
- B(a);P_PINS(F),SBLOCK::P(A)
- S(k);P_PINP(G),SBLOCK::S(F)
- P(f);SBLOCK::P(A)
- Tries
- Try
- S(D);CHECK,XB(c)
- Vars
- P(f);XS(D)::QAB(E),XS(k)
- P(g);XS(D)::QAB(E),XS(k)
- Refutation
- S(b);XS(D)
- Try
- S(D);XP(g)
- Threat
- DUALS(2)
- Vars
- Q(j);XP(G)::QAB1(E)
- B(c);XS(D)::QAB(E),XS(k)
- S(k);N_GUARD,P_PINP(G)::QAR1(E),XS(k)
- Q(j);N_GUARD::QAB1(E),XQ(j)
- Q(j);N_GUARD::QAB1(E)
- S(b);SBLOCK::P(A)
- Refutation
- S(k);CHECK,P_PINP(G),XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(j);XP(G)::QAB1(E)
- S(k);N_GUARD::QAR1(E),XS(k)
- Q(j);N_GUARD::QAB1(E),XQ(j)
- Q(j);N_GUARD::QAB1(E)
- Refutation
- S(b);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(j);XP(G)::QAB1(E)
- S(k);N_GUARD,P_PINP(G),XS(D)::QAR1(E)
- S(k);N_GUARD,P_PINP(G)::QAR1(E),XS(k)
- Q(j);N_GUARD::QAB1(E),XQ(j)
- Q(j);N_GUARD::QAB1(E)
- Refutation
- S(b);
- Try
- B(I);
- Threat
- S(F)
- Vars
- Q(j);XP(G)::S(D),XQ(j)
- B(a);P_PINS(F),SBLOCK::P(A)
- Refutation
- S(b);
- Try
- Q(E);P_PINP(f)
- Threat
- P(A)
- Vars
- Q(j);XP(G)::S(D),XQ(j)
- S(b);N_GUARD::R1(B)
- S(k);P_PINP(G),SBLOCK::S(F)
- Refutation
- Q(j);
- Try
- Q(E);XS(k)
- Threat
- DUALS(6)
- Vars
- Q(j);::QAB(E)+S(D),DCHECK,XB(c)
- Refutation
- S(b);
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(j);XP(G)::QAB1(E)
- P(i);SBLOCK,XS(D)::S(F)
- S(k);N_GUARD,P_PINP(G)::QAR1(E),XS(k)
- Q(j);N_GUARD::QAB1(E),XQ(j)
- Q(j);N_GUARD::QAB1(E)
- S(b);SBLOCK::P(A)
Developed and maintained by Brian Stephenson.
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