MESON Chess Problem Database
Problem Display
PID: 140125 (4nb2/R3pBn1/1pk1ppP1/1Np5/PB1Rp3/1PKN4/1P6/2Q5 w - - 0 1)
Wolfs, WJ
1st HM., Feenstra Kuiper MT (Probleemblad), 1971
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Sf5
- 2.Bxe8#
- 1...Sh5
- 2.Bxe8#
- 1...Sd6
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...exd3
- 2.Qh1#
- 1...e3
- 2.Qh1#
- 1...cxb4+
- 2.Kd2#
- 2.Kxb4#
- 1...cxd4+
- 2.Kxd4#
- 1...e5
- 2.Bd5#
- 1...f5
- 2.Se5#
- 1...Sf5
- Tries
- 1.Kd2?
- 1...exd3
- 2.Qh1#
- 1...Sf5
- 2.Bxe8#
- 1...Sh5
- 2.Bxe8#
- 1...Sd6
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...c4
- 2.Qxc4#
- 1...e5
- 2.Bd5#
- 1...f5
- 2.Se5#
- 1...e3+!
- 1...exd3
- 1.Kc4?
- 1...exd3
- 2.Qh1#
- 1...cxb4
- 2.Kxb4#
- 2.Sxb4#
- 1...cxd4
- 2.Kxd4#
- 2.Sxd4#
- 1...Sf5
- 2.Bxe8#
- 1...Sh5
- 2.Bxe8#
- 1...Sc7
- 2.Rxc7#
- 1...e3
- 2.Qh1#
- 1...e5
- 2.Bd5#
- 1...f5
- 2.Se5#
- 1...Sd6+!
- 1...exd3
- 1.Sf4?
- 1...cxb4+
- 2.Kd2#
- 2.Kxb4#
- 1...cxd4+
- 2.Kd2#
- 2.Kxd4#
- 2.Sxd4#
- 1...c4
- 2.Rxc4#
- 1...Sf5
- 2.Bxe8#
- 1...Sh5
- 2.Bxe8#
- 1...Sd6
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...e3
- 2.Qh1#
- 1...e5
- 2.Bd5#
- 1...f5!
- 1...cxb4+
- 1.Ba3?
- 1...cxd4+
- 2.Kxd4#
- 1...exd3
- 2.Qh1#
- 1...f5
- 2.Se5#
- 1...Sf5
- 2.Bxe8#
- 1...Sh5
- 2.Bxe8#
- 1...Sd6
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...e3
- 2.Qh1#
- 1...e5
- 2.Bd5#
- 1...c4!
- 1...cxd4+
- 1.Bxe6?
- threat
- 2.Bd5#
- 2.Bd7#
- 1...cxb4+
- 2.Kd2#
- 2.Kxb4#
- 1...cxd4+
- 2.Kd2#
- 2.Kxd4#
- 2.Sxd4#
- 1...Sc7
- 2.Bd7#
- 2.Rxc7#
- 1...Sxe6!
- threat
- 1.Rd8?
- 1...cxb4+
- 2.Kd2#
- 2.Kxb4#
- 2.Kd4#
- 1...exd3
- 2.Qh1#
- 1...c4
- 2.Sd4#
- 1...Sf5
- 2.Bxe8#
- 1...Sh5
- 2.Bxe8#
- 1...Sc7
- 2.Rxc7#
- 1...e3
- 2.Qh1#
- 1...e5
- 2.Bd5#
- 1...f5
- 2.Se5#
- 1...Sd6!
- 1...cxb4+
- 1.Rad7?
- threat
- 2.Sa7#
- 1...cxb4+
- 2.Kd2#
- 2.Kxb4#
- 1...Sd6
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...cxd4+!
- threat
- 1.Rxe7?
- threat
- 2.Sa7#
- 1...cxb4+
- 2.Kd2#
- 2.Kxb4#
- 1...cxd4+
- 2.Kxd4#
- 1...Sc7
- 2.Rxc7#
- 1...Bxe7!
- threat
- 1.Qc2?
- 1...cxb4+
- 2.Kd2#
- 2.Kxb4#
- 1...cxd4+
- 2.Kxd4#
- 1...exd3
- 2.Qg2#
- 1...Sf5
- 2.Bxe8#
- 1...Sh5
- 2.Bxe8#
- 1...Sd6
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...e3
- 2.Qg2#
- 1...e5
- 2.Bd5#
- 1...f5
- 2.Se5#
- 1...c4!
- 1...cxb4+
- 1.Kd2?
- Keys
- 1.Qg5!
- 1...cxb4+
- 2.Sxb4#
- 1...cxd4+
- 2.Sxd4#
- 1...exd3
- 2.Qg2#
- 1...fxg5
- 2.Se5#
- 1...c4
- 2.Rxc4#
- 1...Sf5
- 2.Bxe8#
- 1...Sh5
- 2.Bxe8#
- 1...Sd6
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...e3
- 2.Qg2#
- 1...e5
- 2.Bd5#
- 1...f5
- 2.Se5#
- 1...cxb4+
- 1.Qg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(h);N_GUARD::B(L),XS(i)
- S(i);N_GUARD::R1(K)
- S(i);N_GUARD::R1(K),XS(i)
- P(a);OGATEB,XS(E)::QAB(A)
- P(a);OGATEB::QAB(A)
- P(b);CHECK,XR(H)::QAR(A)+K(D),XP(b)
- P(e);OGATE::B(L)
- P(f);N_GUARD::S(E)
- Tries
- Try
- K(D);P_PINP(b),S_FLIGHT
- Vars
- P(a);OGATEB,XS(E)::QAB(A)
- S(h);N_GUARD::B(L),XS(i)
- S(i);N_GUARD::R1(K)
- S(i);N_GUARD::R1(K),XS(i)
- P(b);OGATEB::QAR2(A),XP(b)
- P(e);OGATE::B(L)
- P(f);N_GUARD::S(E)
- Refutation
- P(a);CHECK
- Try
- K(D);P-FLIGHT
- Vars
- P(a);OGATEB,XS(E)::QAB(A)
- S(h);N_GUARD::B(L),XS(i)
- S(i);N_GUARD::R1(K),XS(i)
- P(a);OGATEB::QAB(A)
- P(e);OGATE::B(L)
- P(f);N_GUARD::S(E)
- Refutation
- S(i);CHECK
- Try
- S(E);
- Vars
- P(b);OGATEB::R(H),XP(b)
- S(h);N_GUARD::B(L),XS(i)
- S(i);N_GUARD::R1(K)
- S(i);N_GUARD::R1(K),XS(i)
- P(a);OGATEB::QAB(A)
- P(e);OGATE::B(L)
- Refutation
- P(f);
- Try
- B(G);
- Vars
- P(b);CHECK,XR(H)::QAR(A)+K(D),XP(b)
- P(a);OGATEB,XS(E)::QAB(A)
- P(f);N_GUARD::S(E)
- S(h);N_GUARD::B(L),XS(i)
- S(i);N_GUARD::R1(K)
- S(i);N_GUARD::R1(K),XS(i)
- P(a);OGATEB::QAB(A)
- P(e);OGATE::B(L)
- Refutation
- P(b);
- Try
- B(L);XP(e)
- Threat
- DUALS(2)
- Refutation
- S(h);XB(L)
- Try
- R(H);
- Vars
- P(a);OGATEB,XS(E)::QAB(A)
- P(b);N_GUARD::S(I)
- S(h);N_GUARD::B(L),XS(i)
- S(i);N_GUARD::R1(K),XS(i)
- P(a);OGATEB::QAB(A)
- P(e);OGATE::B(L)
- P(f);N_GUARD::S(E)
- Refutation
- S(i);
- Try
- R(K);
- Threat
- S(I)
- Vars
- S(i);N_GUARD::R1(K)
- S(i);N_GUARD::R1(K),XS(i)
- Refutation
- P(b);CHECK,XR(H)
- Try
- R(K);XP(g)
- Threat
- S(I)
- Vars
- P(b);CHECK,XR(H)::QAR(A)+K(D),XP(b)
- S(i);N_GUARD::R1(K),XS(i)
- Refutation
- B(j);XR(K)
- Try
- Q(A);
- Vars
- P(b);CHECK,XR(H)::QAR(A)+K(D),XP(b)
- P(a);OGATEB,XS(E)::QAB(A)
- S(h);N_GUARD::B(L),XS(i)
- S(i);N_GUARD::R1(K)
- S(i);N_GUARD::R1(K),XS(i)
- P(a);OGATEB::QAB(A)
- P(e);OGATE::B(L)
- P(f);N_GUARD::S(E)
- Refutation
- P(b);
- Try
- Actual
- Q(A);
- Vars
- P(b);CHECK,XB(G)::S(E),XP(b)
- P(b);CHECK,XR(H)::S(I),XP(b)
- P(a);OGATEB,XS(E)::QAB(A)
- P(f);N_GUARD,XQ(A)::S(E)
- P(b);OGATEB::R(H),XP(b)
- S(h);N_GUARD::B(L),XS(i)
- S(i);N_GUARD::R1(K)
- S(i);N_GUARD::R1(K),XS(i)
- P(a);OGATEB::QAB(A)
- P(e);OGATE::B(L)
- P(f);N_GUARD::S(E)
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