MESON Chess Problem Database
Problem Display
PID: 114811 (2r5/p7/Kn3pp1/bQ4pq/4k2r/3R1p1B/3nbP1B/2N1RN2 w - - 0 1)
Andrade, Barry Jack da Costa
The Field, 1959
(First published on Thu Feb 12 1959)
#2
9 + 13
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Sg3#
- 1...Rc2
- 2.Qe8#
- 1...Rc3
- 2.Sxd2#
- 2.Qe8#
- 1...Rc4
- 2.Qe8#
- 1...Re8
- 2.Qxe8#
- 1...Sa4
- 2.Qd5#
- 1...Sc4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...f5
- 2.Qe5#
- 1...Rf4
- Tries
- 1.Sxe2?
- threat
- 2.Sfg3#
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sd4#
- 2.Sf4#
- 2.Re3#
- 2.Rd4#
- 1...Rxh3
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sd4#
- 2.Sf4#
- 2.Re3#
- 2.Rd4#
- 1...Sxf1
- 2.Sc3#
- 2.Rd4#
- 1...Rc4
- 2.Sc1#
- 2.Sf4#
- 2.Re3#
- 1...Sdc4
- 2.Rd4#
- 1...Sbc4
- 2.Rd4#
- 2.Qd5#
- 1...Qg4
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sd4#
- 2.Sf4#
- 2.Re3#
- 2.Rd4#
- 1...Rf4
- 2.Sfg3#
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Seg3#
- 2.Sd4#
- 2.Sxf4#
- 2.Re3#
- 2.Rd4#
- 1...Rg4
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sd4#
- 2.Sf4#
- 2.Re3#
- 2.Rd4#
- 1...Rc1
- 2.Sfg3#
- 2.Sxc1#
- 2.Sc3#
- 2.Re3#
- 2.Rd4#
- 1...Rc3
- 2.Sxd2#
- 2.Sfg3#
- 2.Sc1#
- 2.Sg1#
- 2.Sxc3#
- 2.Sd4#
- 2.Sf4#
- 2.Rd4#
- 1...Rc5
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sf4#
- 2.Rd4#
- 1...Rd8
- 2.Sfg3#
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sd4#
- 2.Sf4#
- 2.Re3#
- 1...Bc3
- 2.Sfg3#
- 2.Sc1#
- 2.Sg1#
- 2.Sxc3#
- 2.Sd4#
- 2.Sf4#
- 2.Re3#
- 1...Sb1
- 2.Sfg3#
- 2.Sc3#
- 2.Re3#
- 2.Rd4#
- 1...Sb3
- 2.Sfg3#
- 2.Sc3#
- 2.Re3#
- 1...Sd5
- 2.Sc3#
- 2.Rd4#
- 2.Qxd5#
- 1...fxe2!
- threat
- 1.Sb3?
- threat
- 2.Re3#
- 2.Rd4#
- 1...Sxf1
- 2.Rd4#
- 1...Rc4
- 2.Re3#
- 1...Sdc4
- 2.Rd4#
- 1...Sbc4
- 2.Rd4#
- 2.Qd5#
- 1...Rc3
- 2.Sfxd2#
- 2.Sbxd2#
- 2.Rd4#
- 1...Rc5
- 2.Sxc5#
- 2.Rd4#
- 1...Rd8
- 2.Sc5#
- 2.Re3#
- 1...Bc3
- 2.Re3#
- 1...Sd5
- 2.Rd4#
- 2.Qxd5#
- 1...Sxb3!
- threat
- 1.Rd7?
- threat
- 2.Qd3#
- 1...Rf4
- 2.Sg3#
- 1...Rc3
- 2.Sxd2#
- 1...Sdc4
- 2.Qb1#
- 1...Sbc4
- 2.Qd5#
- 1...Rc4!
- threat
- 1.Rd8?
- threat
- 2.Qd3#
- 1...Rf4
- 2.Sg3#
- 1...Rc3
- 2.Sxd2#
- 1...Rc4
- 2.Qe8#
- 1...Sdc4
- 2.Qb1#
- 1...Sbc4
- 2.Qd5#
- 1...Rxd8!
- threat
- 1.Qc6+?
- 1...Sd5
- 2.Qxd5#
- 2.Qe6#
- 1...Rxc6!
- 1...Sd5
- 1.Qb4+?
- 1...Rc4
- 2.Sxd2#
- 2.Qe7#
- 1...Sdc4
- 2.Sd2#
- 1...Sbc4
- 2.Sxd2#
- 1...Bxb4!
- 1...Rc4
- 1.Sxe2?
- Keys
- 1.Rd6!
- threat
- 2.Qd3#
- 1...Rf4
- 2.Sg3#
- 1...Rc3
- 2.Sxd2#
- 1...Rc4
- 2.Qe8#
- 1...Sdc4
- 2.Qb1#
- 1...Sbc4
- 2.Qd5#
- threat
- 1.Rd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(e);SBLOCK::S(C)
- R(m);N_GUARD::QAR(H)
- R(m);N_GUARD::QAR(H),XR(m)
- S(i);N_GUARD::QAB1(H)
- S(i);N_GUARD::QAB1(H),XS(i)
- P(j);N_GUARD::QAR1(H)
- Tries
- Try
- S(A);XB(b)
- Threat
- DUALS(8)
- Vars
- S(a);::R1(F)
- Refutation
- P(c);P_SPINP(c),XS(A)
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- S(a);XS(C)::R1(F)
- R(m);::R1(F)
- S(a);::R1(F)
- B(f);::R1(F)
- Refutation
- S(a);XS(A)
- Try
- R(F);P_SPINQ(H)
- Threat
- QAB1(H)
- Vars
- R(e);SBLOCK::S(C)
- R(m);S_CUTB(f)::S(C),XS(a)
- S(a);N_PINQ(H)::QAB(H)
- S(i);N_PINQ(H)::QAB1(H)
- Refutation
- R(m);N_PINQ(H)
- Try
- R(F);P_SPINQ(H)
- Threat
- QAB1(H)
- Vars
- R(e);SBLOCK::S(C)
- R(m);S_CUTB(f)::S(C),XS(a)
- R(m);N_PINQ(H)::QAR(H)
- S(a);N_PINQ(H)::QAB(H)
- S(i);N_PINQ(H)::QAB1(H)
- Refutation
- R(m);XR(F)
- Try
- Q(H);CHECK,P_SPINR(F)
- Refutation
- R(m);XQ(H)
- Try
- Q(H);CHECK,P_SPINR(F)
- Vars
- S(a);N_PINR(F),P_SPINS(a)::S(C)
- S(i);N_PINR(F),P_SPINS(i)::S(C),XS(a)
- Refutation
- B(f);XQ(H)
- Try
- Actual
- R(F);P_SPINQ(H)
- Threat
- QAB1(H)
- Vars
- R(e);SBLOCK::S(C)
- R(m);S_CUTB(f)::S(C),XS(a)
- R(m);N_PINQ(H)::QAR(H)
- S(a);N_PINQ(H)::QAB(H)
- S(i);N_PINQ(H)::QAB1(H)
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