MESON Chess Problem Database

Problem Display
PID: 87530 (2K4n/1pb2p2/2kpp3/p7/2B2Q2/8/8/6B1 w - - 0 1)

Goldschmeding, Cornelis

Problemist Dalnego Vostoka, 1966

2K4n/1pb2p2/2kpp3/p7/2B2Q2/8/8/6B1

#2

4 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qxc7#
  • Tries
    • 1.Ba2?
      • threat
        • 2.Qc4#
      • 1...Kb5
        • 2.Qc4#
      • 1...Bb6
        • 2.Qa4#
      • 1...b5
        • 2.Qc1#
      • 1...d5!
    • 1.Bb3?
      • threat
        • 2.Qc4#
      • 1...Kb5
        • 2.Qc4#
      • 1...Bb6
        • 2.Qa4#
      • 1...b5
        • 2.Qc1#
      • 1...d5!
    • 1.Bb5+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxb5!
    • 1.Ba6?
      • threat
        • 2.Qc4#
      • 1...Kd5
        • 2.Bxb7#
      • 1...d5
        • 2.Qxc7#
      • 1...b5
        • 2.Bb7#
      • 1...Bb6!
    • 1.Qe5?
      • threat
        • 2.Bb5#
        • 2.Qb5#
      • 1...d5
        • 2.Qxc7#
      • 1...b5
        • 2.Bxb5#
        • 2.Qxb5#
      • 1...dxe5!
    • 1.Qxf7?
      • threat
        • 2.Qe8#
        • 2.Qxc7#
        • 2.Qd7#
      • 1...d5
        • 2.Qxc7#
        • 2.Qd7#
      • 1...Bb6
        • 2.Qe8#
        • 2.Qxb7#
        • 2.Qd7#
      • 1...Bb8
        • 2.Qe8#
        • 2.Qxb7#
        • 2.Qd7#
      • 1...Bd8
        • 2.Qe8#
        • 2.Qxb7#
        • 2.Qd7#
      • 1...Sxf7!
  • Keys
    • 1.Bxe6!
      • threat
        • 2.Qc4#
      • 1...Kb5
        • 2.Qc4#
      • 1...Bb6
        • 2.Qa4#
      • 1...d5
        • 2.Bd7#
      • 1...b5
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATE::QAR1(C),XB(f)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR2(C)
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • B(f);S_CUTP(e)::QAB(C)
        • P(e);SBLOCK::QAR(C)
      • Refutation
        • P(c);
    • Try
      • B(B);
      • Threat
        • QAR2(C)
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • B(f);S_CUTP(e)::QAB(C)
        • P(e);SBLOCK::QAR(C)
      • Refutation
        • P(c);
    • Try
      • B(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT,XB(B)
    • Try
      • B(B);
      • Threat
        • QAR2(C)
      • Vars
        • K(b);S_FLIGHT::B(B),XP(e)
        • P(c);OGATE,SBLOCK::QAR1(C),XB(f)
        • P(e);SBLOCK::B(B)
      • Refutation
        • B(f);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);OGATE::QAR1(C),XB(f)
      • Refutation
        • P(c);XQ(C)
    • Try
      • Q(C);XP(g)
      • Threat
        • DUALS(3)
      • Refutation
        • S(h);XQ(C)
  • Actual
    • B(B);XP(d)
    • Threat
      • QAR2(C)
    • Vars
      • K(b);S_FLIGHT::QAB1(C)
      • B(f);S_CUTP(e)::QAB(C)
      • P(c);SBLOCK::B(B)
      • P(e);SBLOCK::QAR(C)
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