MESON Chess Problem Database

Problem Display
PID: 249580 (3Q4/3N2p1/4N1K1/3P4/3B4/3k1p2/1R3P2/8 w - - 0 1)

Lipton, Michael

Deutsche Schachblatter, 1965

3Q4/3N2p1/4N1K1/3P4/3B4/3k1p2/1R3P2/8

#2

8 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Se5#
    • 1...Ke4
      • 2.Sdc5#
  • Tries
    • 1.Kf5?
      • threat
        • 2.Se5#
      • 1...Kc4
        • 2.Se5#
      • 1...g6+!
    • 1.Kg5?
      • 1...Kc4
        • 2.Se5#
      • 1...Ke4
        • 2.Sdc5#
      • 1...g6!
    • 1.Kxg7?
      • 1...Kc4
        • 2.Se5#
      • 1...Ke4!
    • 1.Bxg7?
      • 1...Ke4
        • 2.Sdc5#
      • 1...Kc4!
    • 1.Ra2?
      • 1...Ke4
        • 2.Sdc5#
      • 1...Kc4!
    • 1.Rc2?
      • 1...Ke4
        • 2.Sdc5#
      • 1...Kxc2!
    • 1.Qa5?
      • 1...Kc4
        • 2.Se5#
        • 2.Qb5#
      • 1...Ke4!
    • 1.Qg5?
      • 1...Ke4
        • 2.Sdc5#
        • 2.Qf5#
      • 1...Kc4!
    • 1.Qb6?
      • 1...Kc4
        • 2.Qb3#
        • 2.Qb5#
      • 1...Ke4!
    • 1.Qb8?
      • 1...Kc4
        • 2.Qb3#
        • 2.Qb5#
      • 1...Ke4!
    • 1.Qf8?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kc4!
  • Keys
    • 1.Qa8!
      • 1...Kc4
        • 2.Se5#
      • 1...Ke4
        • 2.Sdc5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(G)
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Threat
        • S(G)
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • P(c);CHECK
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • P(c);
    • Try
      • K(F);P-FLIGHT,XP(c)
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);XP(c)
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(a);S_FLIGHT::QAB1(H)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(a);S_FLIGHT::S(G)
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