MESON Chess Problem Database
Problem Display
PID: 88342 (1q1R4/1pQ3pK/1p1pB3/4N1p1/r3k1Pn/1Rp1P3/r2bNP1B/2n5 w - - 0 1)
van Dooren, Rene
The Problemist, 1991
#2
11 + 13
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Rb4#
- 2.Qc4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Qxc4#
- 1...Ra5
- 2.Rb4#
- 2.Qc4#
- 1...Ra6
- 2.Rb4#
- 2.Qc4#
- 1...Ra7
- 2.Rb4#
- 2.Qc4#
- 1...Ra8
- 2.Rb4#
- 2.Qc4#
- 1...d5
- 2.Sg3#
- 2.Bxd5#
- 1...Ra3
- Tries
- 1.Bf5+?
- 1...Kd5
- 2.Rb5#
- 2.Rxd6#
- 1...Sxf5!
- 1...Kd5
- 1.Rb5?
- threat
- 2.Sg3#
- 2.Bd5#
- 1...Bxe3
- 2.Bd5#
- 1...Sxe2
- 2.Bd5#
- 1...Rd4
- 2.Sg3#
- 1...Sf5
- 2.Bd5#
- 2.Bxf5#
- 1...d5
- 2.Sg3#
- 2.Bxd5#
- 1...dxe5!
- threat
- 1.Qxd6?
- threat
- 2.Sg3#
- 2.Bd5#
- 2.Qd5#
- 1...Qxd8
- 2.Sg3#
- 2.Bd5#
- 1...Bxe3
- 2.Sxc3#
- 2.Bd5#
- 2.Qd5#
- 1...Sxe2
- 2.Bd5#
- 2.Qd3#
- 2.Qd5#
- 1...Rd4
- 2.Sg3#
- 2.Qxd4#
- 1...Ra5
- 2.Sg3#
- 2.Rb4#
- 2.Qb4#
- 2.Qd4#
- 1...Sf5
- 2.Bd5#
- 2.Bxf5#
- 2.Qd5#
- 1...Qxd6!
- threat
- 1.Qc5?
- threat
- 2.Sg3#
- 2.Bd5#
- 2.Qd5#
- 1...Bxe3
- 2.Sxc3#
- 2.Bd5#
- 2.Qxe3#
- 2.Qd5#
- 1...Sxe2
- 2.Bd5#
- 2.Qd5#
- 1...dxc5
- 2.Bd5#
- 1...dxe5
- 2.Qd5#
- 1...Rd4
- 2.Sg3#
- 2.Qxd4#
- 1...Ra5
- 2.Sg3#
- 2.Bd5#
- 2.Rb4#
- 2.Qb4#
- 2.Qd4#
- 2.Qc4#
- 1...Sf5
- 2.Bd5#
- 2.Bxf5#
- 2.Qd5#
- 2.f3#
- 1...d5
- 2.Bxd5#
- 2.Qxd5#
- 1...bxc5!
- threat
- 1.Qc6+?
- 1...d5
- 2.Bxd5#
- 2.Qxd5#
- 1...bxc6!
- 1...d5
- 1.Qxb7+?
- 1...d5
- 2.Bxd5#
- 2.Qxd5#
- 1...Qxb7!
- 1...d5
- 1.Qf7?
- threat
- 2.Bd5#
- 1...dxe5
- 2.Sg3#
- 1...Ra5
- 2.Rb4#
- 1...d5
- 2.Bxd5#
- 1...Rd4!
- threat
- 1.Bf5+?
- Keys
- 1.Qxc3!
- threat
- 2.Sg3#
- 1...Bxc3
- 2.Sxc3#
- 1...Bxe3
- 2.Qxe3#
- 1...Sxe2
- 2.Qd3#
- 1...dxe5
- 2.Bd5#
- 1...Rd4
- 2.Qxd4#
- 1...Sf5
- 2.f3#
- threat
- 1.Qxc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- R(e);N_GUARD::R(D),XR(e)
- R(e);N_GUARD::QAR2(I),XR(e)
- Tries
- Try
- B(H);CHECK
- Refutation
- S(g);XB(H)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- B(c);XP(E)::B(H)
- S(a);XS(A)::B(H)
- R(e);::S(A)
- Refutation
- P(j);XS(G)
- Try
- Q(I);XP(j)
- Threat
- DUALS(3)
- Refutation
- Q(m);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- P(j);XQ(I)::B(H)
- P(j);XS(G)::QAB1(I)
- Refutation
- P(i);XQ(I)
- Try
- Q(I);CHECK
- Refutation
- P(k);XQ(I)
- Try
- Q(I);CHECK,XP(k)
- Refutation
- Q(m);XQ(I)
- Try
- Q(I);
- Threat
- B(H)
- Vars
- P(j);SBLOCK,XS(G)::S(A)
- R(e);N_GUARD::R(D)
- P(j);::B(H),XP(j)
- Refutation
- R(e);
- Try
- Actual
- Q(I);XP(d)
- Threat
- S(A)
- Vars
- B(c);XQ(I)::S(A),XB(c)
- B(c);OGATE,XP(E)::QAR1(I),XB(c)
- S(a);N_GUARD,XS(A)::QAB1(I)
- P(j);XS(G)::B(H)
- R(e);N_GUARD::QAR1(I),XR(e)
- S(g);N_GUARD::P(B)
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