MESON Chess Problem Database
Problem Display
PID: 204604 (8/5N1K/4pp1B/1N2Pp1n/1p2PrR1/1P2pkPB/5P2/5Q2 w - - 0 1)
Wirtanen, Erkki Aukusti
Freie Presse, 1965
#2
12 + 8
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Bg2#
- 1...Rxe4
- 2.fxe3#
- 1...Rxg4
- 2.Bg2#
- 1...Sxg3
- 2.Rxf4#
- 1...Sg7
- 2.Rxf4#
- 1...exf2
- 2.Qd3#
- 1...e2
- 2.Qg2#
- 1...fxe4
- 2.Sd4#
- 1...fxg4
- 2.Bg2#
- 1...fxe5
- 2.Sg5#
- 1...Kxe4
- Tries
- 1.Kg6?
- 1...Kxe4
- 2.Bg2#
- 1...Rxe4
- 2.fxe3#
- 1...Sxg3
- 2.Rxf4#
- 1...exf2
- 2.Qd3#
- 1...fxe4
- 2.Sd4#
- 1...fxg4
- 2.Bg2#
- 1...fxe5
- 2.Sg5#
- 1...Sg7
- 2.Rxf4#
- 1...e2
- 2.Qg2#
- 1...Rxg4+!
- 1...Kxe4
- 1.Kg8?
- 1...Kxe4
- 2.Bg2#
- 1...Rxe4
- 2.fxe3#
- 1...Sxg3
- 2.Rxf4#
- 1...exf2
- 2.Qd3#
- 1...fxe4
- 2.Sd4#
- 1...fxg4
- 2.Bg2#
- 1...fxe5
- 2.Sg5#
- 1...Sg7
- 2.Rxf4#
- 1...e2
- 2.Qg2#
- 1...Rxg4+!
- 1...Kxe4
- 1.Sc3?
- threat
- 2.Qe2#
- 2.Qg2#
- 1...Sxg3
- 2.Rxg3#
- 2.Rxf4#
- 2.Qg2#
- 2.fxg3#
- 1...exf2
- 2.Qe2#
- 2.Qd3#
- 1...e2
- 2.Qxe2#
- 2.Qg2#
- 1...bxc3!
- threat
- 1.Sbd6?
- 1...Rxe4
- 2.fxe3#
- 1...Rxg4
- 2.Bg2#
- 1...Sxg3
- 2.Rxg3#
- 2.Rxf4#
- 2.fxg3#
- 1...exf2
- 2.Qd3#
- 1...fxg4
- 2.Bg2#
- 1...fxe5
- 2.Sxe5#
- 2.Sg5#
- 1...Sg7
- 2.Rxf4#
- 1...e2
- 2.Qg2#
- 1...fxe4!
- 1...Rxe4
- 1.Sfd6?
- threat
- 2.Sd4#
- 1...Rxe4
- 2.fxe3#
- 1...exf2
- 2.Qd3#
- 1...fxe5!
- threat
- 1.Bg5?
- 1...Kxe4
- 2.Bg2#
- 1...Rxe4
- 2.fxe3#
- 1...Rxg4
- 2.Bg2#
- 1...Sxg3
- 2.Rxf4#
- 1...exf2
- 2.Qd3#
- 1...fxe4
- 2.Sd4#
- 1...fxg4
- 2.Bg2#
- 1...fxg5
- 2.Sxg5#
- 1...Sg7
- 2.Rxf4#
- 1...e2
- 2.Qg2#
- 1...fxe5!
- 1...Kxe4
- 1.Rh4?
- threat
- 2.Bg2#
- 1...Kxe4
- 2.Bg2#
- 1...exf2
- 2.Qd3#
- 1...Rxh4!
- threat
- 1.Rg5?
- threat
- 2.Bg2#
- 1...exf2
- 2.Qd3#
- 1...fxg5
- 2.Sxg5#
- 1...Kxe4!
- threat
- 1.Rg6?
- threat
- 2.Bg2#
- 1...exf2
- 2.Qd3#
- 1...Kxe4!
- threat
- 1.Qe2+?
- 1...Kxe4
- 2.Bg2#
- 1...Kxe2!
- 1...Kxe4
- 1.Qd3?
- threat
- 2.Qxe3#
- 1...Kxf2
- 2.Qf1#
- 1...Rxe4!
- threat
- 1.Qd1+?
- 1...Kxf2
- 2.Qf1#
- 1...Kxe4
- 2.Sbd6#
- 2.Bg2#
- 2.f3#
- 1...e2!
- 1...Kxf2
- 1.Qh1+?
- 1...Kxf2
- 2.Qf1#
- 1...Ke2!
- 1...Kxf2
- 1.exf6?
- threat
- 2.Sg5#
- 1...Kxe4
- 2.Bg2#
- 1...Rxg4
- 2.Bg2#
- 1...exf2
- 2.Qd3#
- 1...Sxf6+!
- threat
- 1.Kg6?
- Keys
- 1.Kh8!
- 1...Kxe4
- 2.Bg2#
- 1...Rxe4
- 2.fxe3#
- 1...Rxg4
- 2.Bg2#
- 1...Sxg3
- 2.Rxf4#
- 1...exf2
- 2.Qd3#
- 1...fxe4
- 2.Sd4#
- 1...fxg4
- 2.Bg2#
- 1...fxe5
- 2.Sg5#
- 1...Sg7
- 2.Rxf4#
- 1...e2
- 2.Qg2#
- 1...Kxe4
- 1.Kh8!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(b);P_SPINR(d),S_FLIGHT,XP(F)::B(E)
- R(d);XP(F)::QAR(A)+P(B),XP(a)
- R(d);SBLOCK,XR(G)::B(E)
- S(f);N_GUARD,XP(D)::R1(G),XR(d)
- S(f);N_GUARD::R1(G),XR(d)
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- P(a);SBLOCK::QAB1(A)
- P(e);SBLOCK,XP(F)::S(H)
- P(e);SBLOCK,XR(G)::B(E)
- P(h);N_GUARD,XP(I)::S(K)
- Tries
- Try
- K(L);S_FLIGHT
- Vars
- K(b);P_SPINR(d),S_FLIGHT,XP(F)::B(E)
- R(d);XP(F)::QAR(A)+P(B),XP(a)
- S(f);N_GUARD,XP(D)::R1(G),XR(d)
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- P(e);SBLOCK,XP(F)::S(H)
- P(e);SBLOCK,XR(G)::B(E)
- P(h);N_GUARD,XP(I)::S(K)
- S(f);N_GUARD::R1(G),XR(d)
- P(a);SBLOCK::QAB1(A)
- Refutation
- R(d);CHECK,XR(G)
- Try
- K(L);S_FLIGHT
- Vars
- K(b);P_SPINR(d),S_FLIGHT,XP(F)::B(E)
- R(d);XP(F)::QAR(A)+P(B),XP(a)
- S(f);N_GUARD,XP(D)::R1(G),XR(d)
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- P(e);SBLOCK,XP(F)::S(H)
- P(e);SBLOCK,XR(G)::B(E)
- P(h);N_GUARD,XP(I)::S(K)
- S(f);N_GUARD::R1(G),XR(d)
- P(a);SBLOCK::QAB1(A)
- Refutation
- R(d);CHECK,XR(G)
- Try
- S(H);
- Threat
- DUALS(2)
- Refutation
- P(c);XS(H)
- Try
- S(H);
- Vars
- R(d);XP(F)::QAR(A)+P(B),XP(a)
- R(d);SBLOCK,XR(G)::B(E)
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- P(e);SBLOCK,XR(G)::B(E)
- S(f);N_GUARD::R1(G),XR(d)
- P(a);SBLOCK::QAB1(A)
- Refutation
- P(e);XP(F)
- Try
- S(K);
- Threat
- S(H)
- Vars
- R(d);XP(F)::QAR(A)+P(B),XP(a)
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- Refutation
- P(h);XP(I)
- Try
- B(J);
- Vars
- K(b);P_SPINR(d),S_FLIGHT,XP(F)::B(E)
- R(d);XP(F)::QAR(A)+P(B),XP(a)
- R(d);SBLOCK,XR(G)::B(E)
- S(f);N_GUARD,XP(D)::R1(G),XR(d)
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- P(e);SBLOCK,XP(F)::S(H)
- P(e);SBLOCK,XR(G)::B(E)
- P(h);XB(J)::S(K),XP(h)
- S(f);N_GUARD::R1(G),XR(d)
- P(a);SBLOCK::QAB1(A)
- Refutation
- P(h);XP(I)
- Try
- R(G);
- Threat
- B(E)
- Vars
- K(b);P_SPINR(d),S_FLIGHT,XP(F)::B(E)
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- Refutation
- R(d);XR(G)
- Try
- R(G);
- Threat
- B(E)
- Vars
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- P(h);XR(G)::S(K),XP(h)
- Refutation
- K(b);S_FLIGHT,XP(F)
- Try
- R(G);
- Threat
- B(E)
- Vars
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- Refutation
- K(b);S_FLIGHT,XP(F)
- Try
- Q(A);CHECK
- Vars
- K(b);P_SPINP(a),P_SPINR(d),S_FLIGHT,XP(F)::B(E)
- Refutation
- K(b);S_FLIGHT,XQ(A)
- Try
- Q(A);P_PINP(a)
- Threat
- QAR1(A),XP(a)
- Vars
- K(b);N_SPINP(a),OGATEB,P-FLIGHT,XP(B)::QAR1(A)
- Refutation
- R(d);XP(F)
- Try
- Q(A);CHECK
- Vars
- K(b);OGATEB,P-FLIGHT,XP(B)::QAR1(A)
- Refutation
- P(a);P_SPINP(a)
- Try
- Q(A);CHECK
- Vars
- K(b);OGATEB,P-FLIGHT,XP(B)::QAR1(A)
- Refutation
- K(b);S_FLIGHT
- Try
- P(I);XP(h)
- Threat
- S(K)
- Vars
- K(b);P_SPINR(d),S_FLIGHT,XP(F)::B(E)
- R(d);SBLOCK,XR(G)::B(E)
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- Refutation
- S(f);CHECK,XP(I)
- Try
- Actual
- K(L);P-FLIGHT
- Vars
- K(b);P_SPINR(d),S_FLIGHT,XP(F)::B(E)
- R(d);XP(F)::QAR(A)+P(B),XP(a)
- R(d);SBLOCK,XR(G)::B(E)
- S(f);N_GUARD,XP(D)::R1(G),XR(d)
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(B)::QAR2(A)
- P(e);SBLOCK,XP(F)::S(H)
- P(e);SBLOCK,XR(G)::B(E)
- P(h);N_GUARD,XP(I)::S(K)
- S(f);N_GUARD::R1(G),XR(d)
- P(a);SBLOCK::QAB1(A)
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