MESON Chess Problem Database

Problem Display
PID: 18813 (4n3/8/pp5B/4K2N/QP2R3/2pk4/2N2p2/4bq2 w - - 0 1)

Dombrovskis, Alfreds A

1st Prize, Probleemblad, 1958

4n3/8/pp5B/4K2N/QP2R3/2pk4/2N2p2/4bq2

#2

7 + 8

3174 The Two-move Chess Problem Tradition and Development 1966
328 Schweizerische Schachzeitung 1969
2988 Izbrannie Kompozitsi 1985
4640 Chess Wizardry: The New ABC of Chess Problems 1996
45 Schach 2001
136 Problem Observer 2005
133 The Problemist Supplement 2007
5454 Near Snap 2016
136 Problem Observer 2016
133 The Problemist Supplement 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sa1?
      • threat
        • 2.Qc2#
      • 1...c2
        • 2.Qxc2#
      • 1...Qe2!
    • 1.Sa3?
      • threat
        • 2.Qc2#
      • 1...c2
        • 2.Qxc2#
      • 1...Qe2!
    • 1.Re3+?
      • 1...Kc4
        • 2.Sa3#
      • 1...Kd2!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qc2#
      • 1...Kd2
        • 2.Qd1#
        • 2.Qc2#
      • 1...Ke2
        • 2.Qd1#
      • 1...c2
        • 2.Qxc2#
      • 1...Qe2
        • 2.Rd4#
      • 1...Bd2
        • 2.Sf4#

This anticipates 156456(2006)

There are these versions: 165443

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • QAB1(B)
      • Vars
        • P(d);::QAB1(B),XP(d)
      • Refutation
        • Q(b);P_PINR(D)
    • Try
      • S(A);
      • Threat
        • QAB1(B)
      • Vars
        • P(d);::QAB1(B),XP(d)
      • Refutation
        • Q(b);P_PINR(D)
    • Try
      • R(D);CHECK
      • Vars
        • K(e);S_FLIGHT::S(A)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAB1(B)
    • Vars
      • K(e);S_FLIGHT::QAB1(B)
      • P(d);::QAB1(B),XP(d)
      • Q(b);SBLOCK::R1(D)
      • B(a);SBLOCK::S(F)
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