MESON Chess Problem Database
Problem Display
PID: 133094 (1Qn5/1R1B4/1b6/3k4/KB3Pr1/pPRPrn2/2N1N3/4q3 w - - 0 1)
Ducker, Rev VT
The Field, 1960
(First published on Thu May 5 1960)
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxc3
- 2.Sxc3#
- 1...Rxf4
- 2.Sxf4#
- 1...Ba5
- 2.Sxe3#
- 2.Rc5#
- 2.Rb5#
- 1...Bc5
- 2.Rxc5#
- 1...Bc7
- 2.Sxe3#
- 2.Rb5#
- 1...Bd8
- 2.Sxe3#
- 2.Rc5#
- 2.Rb5#
- 1...Sd4
- 2.Sxe3#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...Qxc3
- Tries
- 1.Rxb6?
- threat
- 2.Sxe3#
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Qxc3
- 2.Sxe3#
- 2.Sxc3#
- 1...Qxe2
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Rxe2
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Rxd3
- 2.Qb7#
- 2.Qa8#
- 1...Rxf4
- 2.Sxe3#
- 2.Sxf4#
- 2.Rc5#
- 2.Rb5#
- 1...Re6
- 2.Bxe6#
- 2.Rc5#
- 2.Rb5#
- 1...Qd2
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Qf2
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Qc1
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Qg1
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Re4
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Re5
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Re7
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Re8
- 2.Rc5#
- 2.Rb5#
- 2.Qb7#
- 2.Qa8#
- 1...Rg6
- 2.Sxe3#
- 2.Rc5#
- 2.Rb5#
- 1...Sd4
- 2.Sxe3#
- 2.Rc5#
- 1...Se5
- 2.Sxe3#
- 2.Be6#
- 2.Rc5#
- 2.Rb5#
- 1...Sd6
- 2.Sxe3#
- 2.Rc5#
- 2.Rxd6#
- 2.Qxd6#
- 1...Sa7
- 2.Sxe3#
- 2.Rc5#
- 2.Rd6#
- 2.Qd6#
- 1...Se7
- 2.Sxe3#
- 2.Rc5#
- 2.Rb5#
- 2.Rd6#
- 2.Qd6#
- 1...Sxb6+!
- threat
- 1.Qc7?
- threat
- 2.Qc4#
- 2.Qc6#
- 1...Qxc3
- 2.Sxc3#
- 1...Rxf4
- 2.Sxf4#
- 1...Bxc7
- 2.Sxe3#
- 2.Rb5#
- 1...Re6
- 2.Qc4#
- 1...Re4
- 2.Qc6#
- 1...Rg6
- 2.Qc4#
- 1...Bc5
- 2.Rxc5#
- 2.Qxc5#
- 2.Qc6#
- 1...Sd2
- 2.Qc6#
- 1...Sd4
- 2.Sxe3#
- 2.Qc4#
- 1...Sd6
- 2.Qxd6#
- 2.Qc6#
- 1...Sa7
- 2.Qd6#
- 2.Qc4#
- 1...Se7
- 2.Qd6#
- 2.Qc4#
- 1...Se5!
- threat
- 1.Qxc8?
- threat
- 2.Bc6#
- 2.Qc4#
- 2.Qc6#
- 1...Qxc3
- 2.Sxc3#
- 1...Bc5
- 2.Qxc5#
- 2.Qc6#
- 1...Re6
- 2.Bxe6#
- 2.Qc4#
- 1...Re4
- 2.Bc6#
- 2.Qc6#
- 1...Rg6
- 2.Qc4#
- 1...Bc7
- 2.Sxe3#
- 2.Bc6#
- 2.Rb5#
- 1...Sd2
- 2.Bc6#
- 2.Qc6#
- 1...Sd4
- 2.Sxe3#
- 2.Qc4#
- 1...Se5
- 2.Be6#
- 1...Rxf4!
- threat
- 1.Rxb6?
- Keys
- 1.f5!
- threat
- 2.Bc6#
- 1...Rxb4+
- 2.Sxb4#
- 1...Qxc3
- 2.Sxc3#
- 1...Bc7
- 2.Rb5#
- 1...Sd6
- 2.Qxd6#
- 1...Re6
- 2.Bxe6#
- 1...Rc4
- 2.bxc4#
- 1...Rg6
- 2.Sf4#
- 1...Bc5
- 2.Rxc5#
- 1...Sd4
- 2.Sxe3#
- 1...Se5
- 2.Be6#
- 1...Sa7
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- threat
- 1.f5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- Q(a);XR(D)::S(B),XQ(a)
- R(e);P_PINB(G),XP(H)::S(B),XR(e)
- B(g);N_GUARD::R1(D),XB(g)
- S(d);S_CUTB(g)::S(A),XR(c)
- S(h);N_GUARD::QAR1(K),XS(h)
- S(h);N_GUARD::QAR1(K)
- Tries
- Try
- R(I);XB(g)
- Threat
- DUALS(5)
- Refutation
- S(h);CHECK,XR(I)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- Q(a);XR(D)::S(B),XQ(a)
- R(e);P_PINB(G),XP(H)::S(B),XR(e)
- R(c);::QAB1(K)
- R(c);P_PINB(G)::QAB1(K)
- R(e);::QAB1(K)
- S(d);::QAB1(K)
- Refutation
- S(d);
- Try
- Q(K);XS(h)
- Threat
- DUALS(3)
- Vars
- Q(a);XR(D)::S(B),XQ(a)
- R(e);::QAB1(K)
- S(d);S_CUTR(c)::B(J)
- Refutation
- R(e);P_PINB(G),XP(H)
- Try
- Actual
- P(H);P_SPINB(G)
- Threat
- B(J)
- Vars
- R(e);CHECK,XB(G)::S(A),XR(e)
- Q(a);XR(D)::S(B),XQ(a)
- B(g);OGATE::R(I)
- S(h);N_GUARD::QAR1(K),XS(h)
- R(c);N_GUARD::B(J),XR(c)
- R(e);OGATE::P(C),XR(e)
- R(e);N_GUARD,N_PINB(G)::S(B)
- B(g);N_GUARD::R1(D),XB(g)
- S(d);N_PINB(G),S_CUTB(g)::S(A),XR(c)
- S(d);S_CUTR(c)::B(J)
- S(h);N_GUARD::QAR1(K)
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