MESON Chess Problem Database

Problem Display
PID: 232559 (3b4/4p1QR/1PPk4/1K5P/2P3P1/8/8/8 w - - 0 1)

Gruber, Lutz-Dieter

Freie Presse, 1990

3b4/4p1QR/1PPk4/1K5P/2P3P1/8/8/8

#2

8 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Rh6#
    • 1...Bxb6
      • 2.Qxe7#
    • 1...Bc7
      • 2.Qxe7#
    • 1...e5
      • 2.Qd7#
    • 1...e6
      • 2.Qd4#
  • Tries
    • 1.Qf6+?
      • 1...e6
        • 2.Rd7#
        • 2.Qd4#
      • 1...exf6!
    • 1.g5?
      • 1...Bxb6
        • 2.Qxe7#
      • 1...e6
        • 2.Qd4#
      • 1...Bc7
        • 2.Qxe7#
      • 1...e5
        • 2.Qd7#
      • 1...Ke6!
    • 1.h6?
      • 1...Bxb6
        • 2.Qxe7#
      • 1...e6
        • 2.Qd4#
      • 1...Bc7
        • 2.Qxe7#
      • 1...e5
        • 2.Qd7#
      • 1...Ke6!
  • Keys
    • 1.b7!
      • 1...Ke6
        • 2.Rh6#
      • 1...Kc7
        • 2.Qe5#
      • 1...e6
        • 2.Qd4#
      • 1...Ba5
        • 2.Qxe7#
      • 1...Bb6
        • 2.Qxe7#
      • 1...Bc7
        • 2.Qxe7#
      • 1...e5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(H)
    • B(c);N_GUARD,XP(E)::QAB1(G),XP(b)
    • B(c);N_GUARD::QAB1(G),XP(b)
    • P(b);OGATE,SBLOCK::QAR1(G)
    • P(b);SBLOCK::QAR2(G)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • P(b);XQ(G)
    • Try
      • P(B);
      • Vars
        • B(c);N_GUARD,XP(E)::QAB1(G),XP(b)
        • P(b);SBLOCK::QAR2(G)
        • B(c);N_GUARD::QAB1(G),XP(b)
        • P(b);OGATE,SBLOCK::QAR1(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(D);
      • Vars
        • B(c);N_GUARD,XP(E)::QAB1(G),XP(b)
        • P(b);SBLOCK::QAR2(G)
        • B(c);N_GUARD::QAB1(G),XP(b)
        • P(b);OGATE,SBLOCK::QAR1(G)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(E);
    • Vars
      • K(a);P-FLIGHT::R(H)
      • K(a);P_SPINP(b),S_FLIGHT::QAB(G)
      • P(b);SBLOCK::QAR2(G)
      • B(c);N_GUARD::QAB1(G),XP(b)
      • P(b);OGATE,SBLOCK::QAR1(G)
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