MESON Chess Problem Database
Problem Display
PID: 59450 (1N4b1/1P4p1/N2p2Q1/3kpP1K/1pr5/1BnpPP1p/3P3B/2R5 w - - 0 1)
Strydom, Jan
Source?, 0000
#2
12 + 10
| 1099 | WCSC | 1996 |
| 5396 | World Chess Solving Championship 1977-1996 | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Be6
- 2.Qxe6#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 2.Qe6#
- 1...Sb1
- 2.Bxc4#
- 1...Sd1
- 2.Bxc4#
- 1...Sa2
- 2.Bxc4#
- 1...Se2
- 2.Bxc4#
- 1...Sa4
- 2.Bxc4#
- 1...Se4
- 2.Bxc4#
- 1...Sb5
- 2.Bxc4#
- 1...e4
- 2.Qxd6#
- 1...Be6
- Tries
- 1.Kg5?
- 1...Be6
- 2.Qxe6#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 2.Qe6#
- 1...Sb1
- 2.Bxc4#
- 1...Sd1
- 2.Bxc4#
- 1...Sa2
- 2.Bxc4#
- 1...Se2
- 2.Bxc4#
- 1...Sa4
- 2.Bxc4#
- 1...Sb5
- 2.Bxc4#
- 1...e4
- 2.Qxd6#
- 1...Se4+!
- 1...Be6
- 1.Sc6?
- threat
- 2.Scxb4#
- 2.Se7#
- 1...Sa2
- 2.Se7#
- 1...Kxc6!
- threat
- 1.Bg3?
- 1...Be6
- 2.Qxe6#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 2.Qe6#
- 1...Sb1
- 2.Bxc4#
- 1...Sd1
- 2.Bxc4#
- 1...Sa2
- 2.Bxc4#
- 1...Se2
- 2.Bxc4#
- 1...Sa4
- 2.Bxc4#
- 1...Se4
- 2.Bxc4#
- 1...Sb5
- 2.Bxc4#
- 1...e4
- 2.Qxd6#
- 1...h2!
- 1...Be6
- 1.Rc2?
- 1...Sd1
- 2.Bxc4#
- 1...Be6
- 2.Qxe6#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 2.Qe6#
- 1...Sb1
- 2.Bxc4#
- 1...Sa2
- 2.Bxc4#
- 1...Se2
- 2.Bxc4#
- 1...Sa4
- 2.Bxc4#
- 1...Se4
- 2.Bxc4#
- 1...Sb5
- 2.Bxc4#
- 1...e4
- 2.Qxd6#
- 1...dxc2!
- 1...Sd1
- 1.Rxc3?
- threat
- 2.Bxc4#
- 2.Rxd3#
- 1...e4
- 2.Bxc4#
- 2.Qxd6#
- 1...bxc3!
- threat
- 1.Qe8?
- threat
- 2.Qc6#
- 2.Qxg8#
- 1...Bf7+
- 2.Qxf7#
- 1...Be6
- 2.Qc6#
- 2.Qxe6#
- 1...Bh7
- 2.Qc6#
- 2.Qf7#
- 2.Qe6#
- 1...g6+!
- threat
- 1.Qxg7?
- threat
- 2.Qxg8#
- 1...Bf7+
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 1...Be6!
- threat
- 1.dxc3?
- threat
- 2.e4#
- 1...e4
- 2.Qxd6#
- 1...bxc3!
- threat
- 1.e4+?
- 1...Kd4
- 2.Bg1#
- 2.Qg1#
- 1...Sxe4!
- 1...Kd4
- 1.Kg5?
- Keys
- 1.f6!
- 1...Ke6
- 2.Sc7#
- 1...gxf6
- 2.Qxg8#
- 1...Sd1
- 2.Bxc4#
- 1...Be6
- 2.Qxd3#
- 1...Bf7
- 2.Qxf7#
- 1...Bh7
- 2.Qf7#
- 1...Sb1
- 2.Bxc4#
- 1...Sa2
- 2.Bxc4#
- 1...Se2
- 2.Bxc4#
- 1...Sa4
- 2.Bxc4#
- 1...Se4
- 2.Bxc4#
- 1...Sb5
- 2.Bxc4#
- 1...e4
- 2.Qf5#
- 1...Ke6
- 1.f6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(j);N_GUARD::QAB1(J),XB(j)
- B(j);N_GUARD,P_PINQ(J)::QAB(J),XB(j)
- S(a);::B(D),XR(e)
- P(g);::QAR1(J),XP(h)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- B(j);N_GUARD::QAB1(J),XB(j)
- B(j);N_GUARD::QAB(J),XB(j)
- S(a);::B(D),XR(e)
- P(g);::QAR1(J),XP(h)
- Refutation
- S(a);CHECK
- Try
- S(L);
- Threat
- DUALS(2)
- Vars
- S(a);::S(L)
- Refutation
- K(f);N_SPINR(e),P_SPINP(h),S_FLIGHT,XS(L)
- Try
- B(C);
- Vars
- B(j);N_GUARD::QAB1(J),XB(j)
- B(j);N_GUARD,P_PINQ(J)::QAB(J),XB(j)
- S(a);::B(D),XR(e)
- P(g);::QAR1(J),XP(h)
- Refutation
- P(c);
- Try
- R(A);
- Vars
- S(a);::B(D),XR(e)
- B(j);N_GUARD::QAB1(J),XB(j)
- B(j);N_GUARD,P_PINQ(J)::QAB(J),XB(j)
- P(g);::QAR1(J),XP(h)
- Refutation
- P(b);XR(A)
- Try
- R(A);XS(a)
- Threat
- DUALS(2)
- Refutation
- P(d);XR(A)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- B(j);CHECK,N_GUARD::QAB(J),XB(j)
- Refutation
- P(i);CHECK
- Try
- Q(J);XP(i)
- Threat
- QAB(J),XB(j)
- Vars
- B(j);CHECK,N_GUARD::QAB(J),XB(j)
- B(j);N_GUARD::QAB(J)
- Refutation
- B(j);
- Try
- P(B);XS(a)
- Threat
- P(E)
- Vars
- P(g);::QAR1(J),XP(h)
- Refutation
- P(d);XP(B)
- Try
- P(E);CHECK
- Refutation
- S(a);XP(E)
- Try
- Actual
- P(G);
- Vars
- K(f);S_FLIGHT::S(I)
- P(i);OGATE,XP(G)::QAB(J),XB(j)
- S(a);::B(D),XR(e)
- B(j);SBLOCK::QAR2(J),XP(b)
- B(j);N_GUARD,P_PINQ(J)::QAB(J),XB(j)
- B(j);N_GUARD::QAB(J)
- P(g);OGATEB::QAR2(J)
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