MESON Chess Problem Database

Problem Display
PID: 6776 (8/8/4p2p/1Q2B2K/4k3/8/8/5B2 w - - 0 1)

Schonberger, Tibor

2nd Prize, Magyar Sakkvilag, 1933

8/8/4p2p/1Q2B2K/4k3/8/8/5B2

#2

4 + 3

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qe2#
    • 1...Kf3
      • 2.Qe2#
    • 1...Kf5
      • 2.Bd3#
  • Tries
    • 1.Kg4?
      • 1...Ke3
        • 2.Qe2#
      • 1...h5+!
    • 1.Kh4?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kf5
        • 2.Bd3#
      • 1...h5!
    • 1.Kg6?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...h5!
    • 1.Kxh6?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kf5!
    • 1.Be2?
      • 1...Kf5
        • 2.Bd3#
      • 1...Ke3!
    • 1.Bh2?
      • threat
        • 2.Qd3#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kd4
        • 2.Qe5#
      • 1...Ke3!
    • 1.Qe2+?
      • 1...Kf5
        • 2.Bh3#
      • 1...Kd5!
    • 1.Qc4+?
      • 1...Ke3
        • 2.Qe2#
        • 2.Qf4#
      • 1...Kf3
        • 2.Qe2#
        • 2.Qf4#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kxe5!
    • 1.Qb2?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kf5
        • 2.Bd3#
      • 1...Kd5!
    • 1.Qc5?
      • 1...Kf5
        • 2.Bd3#
      • 1...Kf3!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf3
        • 2.Qd3#
      • 1...Kd4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::QAR1(B)
    • K(a);S_FLIGHT::QAB1(B)
    • K(a);S_FLIGHT::B(A)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • P(c);CHECK
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • P(c);
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • P(c);
    • Try
      • K(D);P-FLIGHT,XP(c)
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(C);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAR2(B)
      • K(a);P-FLIGHT::QAB1(B)
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