MESON Chess Problem Database
Problem Display
PID: 172008 (6BB/6K1/p1N5/3R4/r1k1N3/Rq3P2/r1bp3p/nQ1nb3 w - - 0 1)
Apro, Laszlo
1st Prize, Magyar Sakkelet, 1970
#2
9 + 11
| 6490 | yacpdb | 2018 |
| 5454 | Near Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qxb1
- 2.Sd6#
- 2.Ra5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...Qb2+
- 2.Re5#
- 1...Qxa3
- 2.Se5#
- 2.Rxd2#
- 2.Rd4#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qc3+
- 2.Rd4#
- 1...Qd3
- 2.Sd6#
- 2.Se5#
- 2.Rdxd3#
- 2.Rd4#
- 2.Rc5#
- 1...Qe3
- 2.Sd6#
- 2.Se5#
- 2.Rxd2#
- 2.Rdd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qxf3
- 2.Sd6#
- 2.Se5#
- 2.Rd4#
- 2.Rc5#
- 2.Rf5#
- 1...Qb4
- 2.Se5#
- 2.Ra5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...Qb5
- 2.Sd6#
- 2.Se5#
- 2.Rd4#
- 2.Rxb5#
- 2.Rc5#
- 1...Qb6
- 2.Sd6#
- 2.Se5#
- 2.Rxd2#
- 2.Rdd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qb7+
- 2.Rd7#
- 1...Qb8
- 2.Rd4#
- 2.Rc5#
- 2.Rd8#
- 1...Rb4
- 2.Sa5#
- 2.Se5#
- 1...Bd3
- 2.Ra5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...Sc3
- 2.Sd6#
- 1...Qxb1
- Tries
- 1.Rxb3?
- threat
- 2.Sd6#
- 2.Se5#
- 2.Rxd2#
- 2.Rdd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rdb5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Bxb1
- 2.Rxd2#
- 2.Rdd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rdb5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Bxb3
- 2.Ra5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Qd3#
- 1...Bxe4
- 2.Se5#
- 1...Rb2
- 2.Rxd2#
- 2.Rdd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rdb5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sb2
- 2.Rc3#
- 2.Rxd2#
- 2.Rdd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rdb5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Rb4
- 2.Sd6#
- 2.Se5#
- 2.Rxb4#
- 2.Ra5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 1...Ra5
- 2.Sd6#
- 2.Se5#
- 2.Rb4#
- 2.Rd4#
- 2.Rxa5#
- 2.Rdb5#
- 2.Rc5#
- 1...Bg3
- 2.Sxd2#
- 2.Rxd2#
- 2.Rdd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rdb5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Bd3
- 2.Sd6#
- 2.Se5#
- 2.Rdxd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rdb5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 2.Qxd3#
- 1...Sc3
- 2.Sd6#
- 2.Se5#
- 2.Rxc3#
- 2.Rd4#
- 1...Se3
- 2.Sd6#
- 2.Se5#
- 2.Rc3#
- 2.Rd4#
- 2.Rc5#
- 1...a5
- 2.Sd6#
- 2.Se5#
- 2.Rxd2#
- 2.Rdd3#
- 2.Rd4#
- 2.Rxa5#
- 2.Rdb5#
- 2.Rc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sxb3!
- threat
- 1.Rxa4+?
- 1...Qxa4
- 2.Se5#
- 2.Rxd2#
- 2.Rd4#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qb4
- 2.Sa5#
- 2.Se5#
- 2.Rxb4#
- 2.Qxb4#
- 1...Rxa4!
- 1...Qxa4
- 1.Rxb3?
- Keys
- 1.Kf8!
- threat
- 2.Sd6#
- 1...Qxa3+
- 2.Rd6#
- 1...Qxf3+
- 2.Rf5#
- 1...Qb4+
- 2.Rc5#
- 1...Qb8+
- 2.Rd8#
- 1...Bxe4
- 2.Qxe4#
- 1...Bg3
- 2.Sxd2#
- threat
- 1.Kf8!
Anticipated by 11626(1967-1968)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 4
- Sets
- Q(h);CHECK::B(H)+R(E)
- Q(h);CHECK::B(H)+R(E),DCHECK
- S(b);SBLOCK::S(D)
- Tries
- Try
- R(B);XQ(h)
- Threat
- DUALS(15)
- Vars
- B(e);XS(D)::S(F)
- Refutation
- S(a);XR(B)
- Try
- R(B);CHECK,XR(i)
- Refutation
- R(d);XR(B)
- Try
- Actual
- K(G);S_FLIGHT
- Threat
- S(D)
- Vars
- Q(h);CHECK,XR(B)::B(H)+R(E)
- Q(h);CHECK,XP(C)::B(H)+R(E)
- Q(h);CHECK::B(H)+R(E),DCHECK
- Q(h);CHECK::B(H)+R(E)
- B(e);OGATE,XS(D)::QAR2(A),XB(e)
- B(c);N_GUARD::S(D),XP(f)
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