MESON Chess Problem Database
Problem Display
PID: 66039 (1b2B3/1KnRP3/8/Bp6/pPkNr1NR/r1n5/PP2P3/1b1Qq3 w - - 0 1)
van Dooren, Rene
Die Schwalbe, 1989
#2
13 + 10
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Sxe3#
- 1...Rxd4
- 2.Se3#
- 2.Se5#
- 2.Rxd4#
- 2.Qxd4#
- 1...Rf4
- 2.Se3#
- 2.Se5#
- 1...Re5
- 2.Sxe5#
- 1...Bxa2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 2.exd3#
- 1...Re3
- Tries
- 1.Sc2?
- threat
- 2.Sxa3#
- 2.Sge3#
- 2.Se5#
- 2.Qd3#
- 1...Qxh4
- 2.Sxa3#
- 2.Qd3#
- 1...Qxd1
- 2.Sxa3#
- 2.Sge3#
- 2.Se5#
- 1...Qxe2
- 2.Sxa3#
- 2.Se5#
- 1...Rxg4
- 2.Sxa3#
- 2.Se3#
- 2.Qd3#
- 1...Bxa2
- 2.Sxa3#
- 1...Bxc2
- 2.Se3#
- 2.Se5#
- 1...Sxd1
- 2.Sxa3#
- 2.Se5#
- 1...Sxa2
- 2.Sxa3#
- 1...Sxe2
- 2.Sxa3#
- 2.Se5#
- 1...Sxe8
- 2.Sxa3#
- 2.Sge3#
- 2.Qd3#
- 1...Qd2
- 2.Sxa3#
- 2.Se5#
- 1...Qf2
- 2.Sxa3#
- 2.Se5#
- 2.Qd3#
- 1...Qg3
- 2.Sxa3#
- 1...Qg1
- 2.Sxa3#
- 2.Se5#
- 2.Qd3#
- 1...Rb3
- 2.Sge3#
- 2.Se5#
- 2.Qd3#
- 1...Re3
- 2.Sxa3#
- 2.Scxe3#
- 2.Sgxe3#
- 2.Se5#
- 2.Rd4#
- 2.Qd4#
- 1...Rd4
- 2.Sxa3#
- 2.Sce3#
- 2.Sge3#
- 2.Se5#
- 2.Rxd4#
- 2.Qxd4#
- 1...Re5
- 2.Sxa3#
- 2.Sge3#
- 2.Sxe5#
- 2.Rd4#
- 2.Qd3#
- 2.Qd4#
- 1...Ba7
- 2.Sxa3#
- 2.Se5#
- 2.Qd3#
- 1...S3d5
- 2.Sxa3#
- 2.Se5#
- 1...S7d5
- 2.Sxa3#
- 2.Qd3#
- 1...Sa6
- 2.Sxa3#
- 2.Sge3#
- 2.Qd3#
- 1...Se6
- 2.Sxa3#
- 2.Sge3#
- 2.Qd3#
- 1...Sa8
- 2.Sxa3#
- 2.Sge3#
- 2.Qd3#
- 1...Rxa2!
- threat
- 1.Sf3?
- threat
- 2.Se3#
- 2.Sge5#
- 1...Qxh4
- 2.Sd2#
- 1...Qxe2
- 2.Sge5#
- 1...Rxg4
- 2.Se5#
- 1...Sxd1
- 2.Sge5#
- 1...Sxa2
- 2.Sge5#
- 1...Sxe2
- 2.Sge5#
- 1...Sxe8
- 2.Se3#
- 1...Qd2
- 2.Sxd2#
- 2.Sge5#
- 1...Qf2
- 2.Sd2#
- 2.Sge5#
- 1...Qg3
- 2.Sd2#
- 2.Se3#
- 1...Qg1
- 2.Sd2#
- 2.Sge5#
- 1...Re3
- 2.Sxe3#
- 2.Sge5#
- 2.Rd4#
- 2.Qd4#
- 1...Re5
- 2.Sfxe5#
- 2.Se3#
- 2.Sgxe5#
- 2.Rd4#
- 2.Qd4#
- 1...Ba7
- 2.Sge5#
- 1...S3d5
- 2.Sge5#
- 1...Sa6
- 2.Se3#
- 1...Se6
- 2.Se3#
- 1...Sa8
- 2.Se3#
- 1...S7d5!
- threat
- 1.Sc2?
- Keys
- 1.Sxb5!
- threat
- 2.Sxa3#
- 2.Sd6#
- 1...Kxb5
- 2.Rxc7#
- 1...Qxd1
- 2.Sxa3#
- 1...Rxa2
- 2.Sd6#
- 1...Sxd1
- 2.Sxa3#
- 1...S3xb5
- 2.Se5#
- 1...S7xb5
- 2.Se3#
- 1...Sxe8
- 2.Sxa3#
- 1...S7d5
- 2.Sxa3#
- 1...Qd2
- 2.Sxa3#
- 1...Qg3
- 2.Sxa3#
- 1...Rb3
- 2.Sd6#
- 1...Rd4
- 2.Sxa3#
- 2.Rxd4#
- 1...Re6
- 2.Sxa3#
- 2.Rd4#
- 1...Bd3
- 2.Sxa3#
- 2.Qxd3#
- 1...Sa6
- 2.Sxa3#
- 1...Se6
- 2.Sxa3#
- 1...Sa8
- 2.Sxa3#
- threat
- 1.Sxb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 3
- Sets
- R(g);N_GUARD::S(G),XR(g)
- B(a);N_GUARD,XP(B)::QAB1(A)
- Tries
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- B(a);XP(B)::S(F),XR(c)
- S(d);XP(B)::S(F),XR(c)
- Q(b);::S(F),XR(c)
- Refutation
- R(c);XP(B)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD,XR(H)::S(F)
- Q(b);XP(D)::S(G)
- R(g);N_GUARD,P_SPINR(g),XS(G)::S(F)
- S(d);XQ(A)::S(G)
- S(d);XP(B)::S(G)
- S(d);XP(D)::S(G)
- S(i);XB(M)::S(G)
- B(j);::S(G)
- S(d);::S(G)
- S(i);::S(G)
- Refutation
- S(i);
- Try
- Actual
- S(F);XP(h)
- Threat
- DUALS(2)
- Vars
- K(f);S_FLIGHT,XS(F)::B(M)+R(K),XS(i)
- Q(b);XQ(A)::S(F),XR(c)
- R(c);XP(B)::S(F)
- S(d);XQ(A)::S(F),XR(c)
- S(d);SBLOCK,XS(F)::S(G)
- S(i);SBLOCK,XS(F)::S(G)
- S(i);XB(M)::S(F),XR(c)
- S(i);::S(F),XR(c)
- Q(b);::S(F),XR(c)
- R(c);::S(F)
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