MESON Chess Problem Database
Problem Display
PID: 5005 (8/8/8/4p3/2n2p2/1N1b1k1B/8/2Q1KN2 w - - 0 1)
Potempski, Waclaw
2nd Place, Tygodnik Illustrowany, 1896
#2
5 + 5
| 3242 | BCPS Rapid Solving (Cheltenham) | 2001 |
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Be4
- 2.Qd1#
- 1...Sb2
- 2.Sbd2#
- 1...Sd2
- 2.Sbxd2#
- 1...Sa3
- 2.Sbd2#
- 1...Se3
- 2.Sbd2#
- 1...Sa5
- 2.Sbd2#
- 1...Sb6
- 2.Sbd2#
- 1...Sd6
- 2.Sbd2#
- 1...e4
- 2.Sd4#
- 1...Be4
- Tries
- 1.Qe3+?
- 1...Sxe3
- 2.Sbd2#
- 1...fxe3!
- 1...Sxe3
- 1.Qd1+?
- 1...Be2
- 2.Qxe2#
- 1...Ke4!
- 1...Be2
- 1.Qc3?
- 1...Sb2
- 2.Sbd2#
- 1...Sd2
- 2.Sbxd2#
- 2.Qxd3#
- 1...Sa3
- 2.Sbd2#
- 2.Qxd3#
- 1...Se3
- 2.Sbd2#
- 1...Sa5
- 2.Sbd2#
- 2.Qxd3#
- 1...Sb6
- 2.Sbd2#
- 2.Qxd3#
- 1...Sd6
- 2.Sbd2#
- 2.Qxd3#
- 1...e4
- 2.Sd4#
- 1...Ke4!
- 1...Sb2
- 1.Qxc4?
- threat
- 2.Sbd2#
- 2.Qxd3#
- 1...Bxc4
- 2.Sbd2#
- 1...Bb1
- 2.Sbd2#
- 2.Qe2#
- 1...Bc2
- 2.Sbd2#
- 2.Qe2#
- 1...Be2
- 2.Sbd2#
- 2.Qxe2#
- 1...Be4
- 2.Sbd2#
- 2.Qe2#
- 1...Bf5
- 2.Sbd2#
- 2.Qe2#
- 1...Bg6
- 2.Sbd2#
- 2.Qe2#
- 1...Bh7
- 2.Sbd2#
- 2.Qe2#
- 1...e4
- 2.Sbd2#
- 2.Sd4#
- 1...Bxf1!
- threat
- 1.Qe3+?
- Keys
- 1.Qa3!
- 1...Ke4
- 2.Qa8#
- 1...Bxf1
- 2.Sd2#
- 1...Sxa3
- 2.Sbd2#
- 1...Bb1
- 2.Sbd2#
- 1...Bc2
- 2.Sbd2#
- 1...Be2
- 2.Sbd2#
- 1...Be4
- 2.Sbd2#
- 2.Sd4#
- 1...Bf5
- 2.Sbd2#
- 1...Bg6
- 2.Sbd2#
- 1...Bh7
- 2.Sbd2#
- 1...Sb2
- 2.Sbd2#
- 1...Sd2
- 2.Sbxd2#
- 1...Se3
- 2.Sbd2#
- 1...Sa5
- 2.Sbd2#
- 1...Sb6
- 2.Sbd2#
- 1...Sd6
- 2.Sbd2#
- 1...e4
- 2.Sd4#
- 1...Ke4
- 1.Qa3!
This anticipates 181077(1904)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- B(a);N_GUARD,SBLOCK::QAB(A)
- S(c);N_GUARD::S(D)
- S(c);N_GUARD::S(D),XS(c)
- P(e);N_GUARD,SBLOCK::S(D)
- Tries
- Try
- Q(A);CHECK
- Vars
- S(c);XQ(A)::S(D)
- Refutation
- P(d);XQ(A)
- Try
- Q(A);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAB1(A),XB(a)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(A);P_PINB(a)
- Vars
- S(c);N_GUARD::S(D)
- S(c);N_GUARD,N_SPINB(a)::S(D)
- P(e);N_GUARD,SBLOCK::S(D)
- Refutation
- K(b);N_SPINB(a),S_FLIGHT
- Try
- Q(A);XS(c)
- Threat
- DUALS(2)
- Vars
- B(a);XQ(A)::S(D)
- Refutation
- B(a);XS(C)
- Try
- Actual
- Q(A);
- Vars
- K(b);S_FLIGHT::QAB(A)
- B(a);XS(C)::QAR(A)+S(D),DCHECK
- S(c);N_GUARD,XQ(A)::S(D)
- B(a);::QAR(A)+S(D),DCHECK
- S(c);N_GUARD::S(D)
- S(c);N_GUARD::S(D),XS(c)
- P(e);N_GUARD,SBLOCK::S(D)
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