MESON Chess Problem Database
Problem Display
PID: 153891 (8/1p2rb2/3P4/B3rp2/p1pR1n1N/2PpkB2/R2N4/3q1Q1K w - - 0 1)
Zunec, Joze
Novi Temi, 1972
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Qb3
- 2.Qg1#
- 1...Qxf3+
- 2.Qxf3#
- 1...Qxf1+
- 2.Sxf1#
- 1...Re4
- 2.Sxf5#
- 1...Rd5
- 2.Sxc4#
- 1...R5e6
- 2.Sxc4#
- 2.Sxf5#
- 1...R7e6
- 2.Sxc4#
- 1...Bh5
- 2.Sxc4#
- 1...Bg6
- 2.Sxc4#
- 1...Be8
- 2.Sxc4#
- 1...Se2
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sh3
- 2.Sg2#
- 1...Sd5
- 2.Sxc4#
- 2.Sg2#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sxc4#
- 2.Sg2#
- 1...Sg6
- 2.Sg2#
- 1...Qb3
- Tries
- 1.Bxd1?
- threat
- 2.Qg1#
- 2.Qf3#
- 2.Qxf4#
- 1...Re4
- 2.Sxf5#
- 2.Qg1#
- 2.Qf3#
- 1...Bh5
- 2.Sxc4#
- 2.Qg1#
- 2.Qxf4#
- 1...Se2
- 2.Sg2#
- 2.Qf3#
- 1...Sg2
- 2.Sxg2#
- 2.Qg1#
- 2.Qf3#
- 1...Sh3
- 2.Sg2#
- 2.Qe1#
- 2.Qf3#
- 1...Sd5
- 2.Sxc4#
- 2.Sg2#
- 2.Qe1#
- 2.Qg1#
- 2.Qf3#
- 1...Sh5
- 2.Sg2#
- 2.Qe1#
- 2.Qg1#
- 2.Qf3#
- 1...Se6
- 2.Sxc4#
- 2.Sg2#
- 2.Qe1#
- 2.Qg1#
- 2.Qf3#
- 1...Sg6
- 2.Sg2#
- 2.Qe1#
- 2.Qg1#
- 2.Qf3#
- 1...Bd5+!
- threat
- 1.Bb6?
- threat
- 2.Rxd3#
- 2.Re4#
- 2.Rd5#
- 1...Qxf3+
- 2.Qxf3#
- 1...Qxf1+
- 2.Sxf1#
- 1...Qc2
- 2.Rxd3#
- 1...Qe2
- 2.Re4#
- 2.Rd5#
- 1...Qb3
- 2.Rxd3#
- 2.Re4#
- 2.Qg1#
- 1...Qb1
- 2.Rxd3#
- 2.Re4#
- 1...Re4
- 2.Sxf5#
- 2.Rxd3#
- 2.Rxe4#
- 1...Ra5
- 2.Rxd3#
- 2.Re4#
- 1...Rb5
- 2.Rxd3#
- 2.Re4#
- 1...Rd5
- 2.Sxc4#
- 2.Rxd3#
- 2.Re4#
- 2.Rxd5#
- 1...Rc7
- 2.Rxd3#
- 2.Re4#
- 1...Bd5
- 2.Rxd3#
- 2.Rxc4#
- 2.Re4#
- 2.Rxd5#
- 1...Se2
- 2.Sg2#
- 2.Re4#
- 1...Sg2
- 2.Sxg2#
- 2.Re4#
- 1...Sh3
- 2.Sg2#
- 2.Re4#
- 1...Sd5
- 2.Sxc4#
- 2.Sg2#
- 2.Re4#
- 1...Sh5
- 2.Sg2#
- 2.Re4#
- 1...Se6
- 2.Sxc4#
- 2.Sg2#
- 2.Re4#
- 1...Sg6
- 2.Sg2#
- 2.Re4#
- 1...Rc5!
- threat
- 1.Rxd3+?
- 1...Sxd3
- 2.Sg2#
- 1...cxd3!
- 1...Sxd3
- 1.Re4+?
- 1...Rxe4
- 2.Sxf5#
- 1...fxe4!
- 1...Rxe4
- 1.Qxd1?
- threat
- 2.Sf1#
- 2.Qg1#
- 1...Kf2
- 2.Qg1#
- 1...Sh3
- 2.Sf1#
- 2.Qe1#
- 1...Se2!
- threat
- 1.Qe1+?
- 1...Qe2
- 2.Sf1#
- 1...Se2
- 2.Sf1#
- 2.Sg2#
- 1...Qxe1+!
- 1...Qe2
- 1.Bxd1?
- Keys
- 1.Rd5!
- threat
- 2.Sxc4#
- 2.Bb6#
- 1...Qxf3+
- 2.Qxf3#
- 1...Qxf1+
- 2.Sxf1#
- 1...Qxd2
- 2.Bb6#
- 1...Rxd5
- 2.Sxc4#
- 1...Bxd5
- 2.Bb6#
- 1...Sxd5
- 2.Sg2#
- 1...Qc2
- 2.Sxc4#
- 1...Se2
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sh3
- 2.Sg2#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sg2#
- 1...Sg6
- 2.Sg2#
- 1...Qb3
- 2.Qg1#
- 1...Qb1
- 2.Sxc4#
- 1...Re4
- 2.Sxf5#
- 1...Rc7
- 2.Rxe5#
- 1...b5
- 2.Bb6#
- 1...b6
- 2.Sxc4#
- 2.Bxb6#
- threat
- 1.Rd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 4
- Sets
- Q(a);N_GUARD,N_PINQ(A)::QAB(A)
- Q(a);CHECK,N_PINQ(A),XB(F)::QAR1(A),XQ(a)
- Q(a);CHECK,XQ(A)::S(D),XQ(a)
- R(g);N_GUARD::S(H),XP(h)
- R(g);S_CUTB(k)::S(D),XP(e)
- R(j);S_CUTB(k)::S(D),XP(e)
- B(k);N_GUARD::S(D),XP(e)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- Tries
- Try
- B(F);N_SPINQ(A),XQ(a)
- Threat
- DUALS(3)
- Refutation
- B(k);CHECK
- Try
- B(I);
- Threat
- DUALS(3)
- Vars
- Q(a);CHECK,N_PINQ(A),XB(F)::QAR1(A),XQ(a)
- Q(a);CHECK,XQ(A)::S(D),XQ(a)
- Q(a);N_PINQ(A)::B(I)+R(G),DCHECK,XP(b)
- Refutation
- R(g);
- Try
- R(G);CHECK,XP(b)
- Vars
- S(f);XR(G)::S(H)
- Refutation
- P(e);XR(G)
- Try
- R(G);CHECK
- Vars
- R(g);XR(G)::S(H),XP(h)
- Refutation
- P(h);XR(G)
- Try
- Q(A);N_SPINQ(A),XQ(a)
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT::QAB1(A)
- Refutation
- S(f);
- Try
- Q(A);CHECK
- Vars
- Q(a);N_PINQ(A),P_SPINQ(a)::S(D)
- Refutation
- Q(a);CHECK,XQ(A)
- Try
- Actual
- R(G);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,N_PINQ(A),XB(F)::QAR1(A),XQ(a)
- Q(a);CHECK,XQ(A)::S(D),XQ(a)
- Q(a);N_PINQ(A),XS(D)::B(I)
- R(g);XR(G)::S(D),XP(e)
- B(k);P_PINB(F),XR(G)::B(I)
- S(f);N_GUARD,XR(G)::S(H)
- Q(a);N_PINQ(A)::S(D),XP(e)
- S(f);N_GUARD::S(H)
- S(f);N_GUARD::S(H),XS(f)
- Q(a);N_GUARD,N_PINQ(A)::QAB(A)
- Q(a);::S(D),XP(e)
- R(g);N_GUARD::S(H),XP(h)
- R(j);N_GUARD::R(G),XR(g)
- P(i);::B(I)
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