MESON Chess Problem Database
Problem Display
PID: 195278 (1R6/Rr2pN2/3P1B2/2P2pP1/1b2kN2/2P3Kp/P1b2P2/Qn3B2 w - - 0 1)
Sanderse, Jacobus Theodorus
Probleemblad, 1979
#2
14 + 8
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Rxe7#
- 1...Rb6
- 2.Rxe7#
- 1...Rxa7
- 2.Rxb4#
- 1...Rc7
- 2.Rxb4#
- 1...Rd7
- 2.Rxb4#
- 1...Rxb8
- 2.Rxe7#
- 1...Bd1
- 2.Bd3#
- 1...Bb3
- 2.Bd3#
- 1...Bd3
- 2.Bxd3#
- 1...Ba4
- 2.Bd3#
- 1...Sd2
- 2.Qe1#
- 1...Sa3
- 2.Qe1#
- 1...h2
- 2.Bg2#
- 1...exd6
- 2.Sxd6#
- 1...Rb5
- Tries
- 1.Be2?
- threat
- 2.Bf3#
- 1...Bd1
- 2.Bd3#
- 1...Sd2!
- threat
- 1.Bxh3?
- threat
- 2.Bg2#
- 1...Sd2
- 2.Qe1#
- 1...Bd1!
- threat
- 1.Bc4?
- threat
- 2.Bd5#
- 1...Sxc3
- 2.Qh1#
- 1...Bb3
- 2.Bd3#
- 1...e6!
- threat
- 1.Bb5?
- threat
- 2.Bc6#
- 1...Rxb5
- 2.Rxe7#
- 1...Sxc3
- 2.Qh1#
- 1...exd6
- 2.Sxd6#
- 1...Rb6
- 2.Rxe7#
- 1...Bb3
- 2.Bd3#
- 1...Ba4
- 2.Bd3#
- 1...Rc7!
- threat
- 1.Raxb7?
- threat
- 2.Rxb4#
- 2.Rxe7#
- 1...Bxc5
- 2.Rxe7#
- 1...exd6
- 2.Sxd6#
- 2.Rxb4#
- 2.Re7#
- 2.Re8#
- 1...exf6
- 2.Rxb4#
- 2.Re7#
- 2.Re8#
- 1...Bb3
- 2.Bd3#
- 1...Bd3
- 2.Bxd3#
- 2.Rxe7#
- 1...Ba3
- 2.Rxe7#
- 1...Ba5
- 2.Rxe7#
- 1...Sd2
- 2.Rxe7#
- 2.Qe1#
- 1...Sa3
- 2.Rxe7#
- 2.Qe1#
- 1...e5
- 2.Rxb4#
- 1...e6
- 2.Rxb4#
- 1...Bxc3!
- threat
- 1.Rbxb7?
- threat
- 2.Rxb4#
- 2.Rxe7#
- 1...Bxc5
- 2.Rxe7#
- 1...exd6
- 2.Sxd6#
- 2.Rxb4#
- 2.Re7#
- 1...exf6
- 2.Rxb4#
- 2.Re7#
- 1...Bb3
- 2.Bd3#
- 1...Bd3
- 2.Bxd3#
- 2.Rxe7#
- 1...Ba3
- 2.Rxe7#
- 1...Ba5
- 2.Rxe7#
- 1...Sd2
- 2.Rxe7#
- 2.Qe1#
- 1...Sa3
- 2.Rxe7#
- 2.Qe1#
- 1...e5
- 2.Rxb4#
- 1...e6
- 2.Rxb4#
- 1...Bxc3!
- threat
- 1.Qb2?
- threat
- 2.Qxc2#
- 1...Bd1
- 2.Bd3#
- 1...Bb3
- 2.Bd3#
- 2.Qe2#
- 1...Bd3
- 2.Bxd3#
- 1...Ba4
- 2.Bd3#
- 2.Qe2#
- 1...Sa3!
- threat
- 1.Qxb1?
- threat
- 2.Qxc2#
- 2.Qe1#
- 1...Bxc3
- 2.Qxc2#
- 2.Qxb7#
- 1...Bxc5
- 2.Qxc2#
- 2.Qxb7#
- 1...Bd3
- 2.Bxd3#
- 2.Qxd3#
- 1...Bxb1!
- threat
- 1.Be2?
- Keys
- 1.Ba6!
- threat
- 2.Bxb7#
- 1...Rxa7
- 2.Rxb4#
- 1...Rxb8
- 2.Rxe7#
- 1...Sxc3
- 2.Qh1#
- 1...exd6
- 2.Sxd6#
- 1...Rb5
- 2.Rxe7#
- 1...Rb6
- 2.Rxe7#
- 1...Rc7
- 2.Rxb4#
- 1...Rd7
- 2.Rxb4#
- 1...Bb3
- 2.Bd3#
- 1...Ba4
- 2.Bd3#
- threat
- 1.Ba6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(g);OGATE::R(L),XP(h)
- R(g);OGATE,XR(L)::R(N),XB(d)
- R(g);OGATE::R(N),XB(d)
- R(g);OGATE,XR(N)::R(L),XP(h)
- B(b);N_GUARD::B(B)
- B(b);N_GUARD::B(B),XB(b)
- S(a);OGATE::QAR(A)
- P(c);N_GUARD::B(B)
- P(h);XP(J)::S(M),XP(h)
- Tries
- Try
- B(B);
- Threat
- B(B)
- Vars
- B(b);N_GUARD::B(B)
- Refutation
- S(a);
- Try
- B(B);XP(c)
- Threat
- B(B)
- Vars
- S(a);OGATE::QAR(A)
- Refutation
- B(b);
- Try
- B(B);
- Threat
- B(B)
- Vars
- S(a);OGATE,XP(E)::QAB(A)
- B(b);N_GUARD::B(B)
- Refutation
- P(h);
- Try
- B(B);
- Threat
- B(B)
- Vars
- R(g);OGATE,XB(B)::R(L),XP(h)
- S(a);OGATE,XP(E)::QAB(A)
- P(h);XP(J)::S(M),XP(h)
- R(g);OGATE::R(L),XP(h)
- B(b);N_GUARD::B(B)
- Refutation
- R(g);
- Try
- R(L);XR(g)
- Threat
- DUALS(2)
- Vars
- B(d);XP(H)::R(L),XP(h)
- B(b);N_GUARD::B(B)
- B(d);::R(L),XP(h)
- P(h);::R(L),XB(d)
- Refutation
- B(d);XP(E)
- Try
- R(N);XR(g)
- Threat
- DUALS(2)
- Vars
- B(d);XP(H)::R(N),XP(h)
- B(b);N_GUARD::B(B)
- B(d);::R(N),XP(h)
- P(h);::R(N),XB(d)
- Refutation
- B(d);XP(E)
- Try
- Q(A);
- Threat
- QAB(A),XB(b)
- Vars
- B(b);N_GUARD::B(B)
- B(b);N_GUARD::B(B),XB(b)
- Refutation
- S(a);
- Try
- Q(A);P_PINB(b),XS(a)
- Threat
- DUALS(2)
- Refutation
- B(b);N_SPINB(b),XQ(A)
- Try
- Actual
- B(B);
- Threat
- B(B),XR(g)
- Vars
- R(g);OGATE,XR(L)::R(N),XB(d)
- R(g);OGATE,XR(N)::R(L),XP(h)
- S(a);OGATE,XP(E)::QAB(A)
- P(h);XP(J)::S(M),XP(h)
- R(g);OGATE::R(L),XP(h)
- R(g);OGATE::R(N),XB(d)
- B(b);N_GUARD::B(B)
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