MESON Chess Problem Database

Problem Display
PID: 120793 (8/8/3b1N1p/5P2/4Pk1p/2Q1pN1n/6K1/8 w - - 0 1)

Wheeler, Charles Henry

Checkmate, 1901

8/8/3b1N1p/5P2/4Pk1p/2Q1pN1n/6K1/8

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Qe5#
    • 1...Bb4
      • 2.Qe5#
    • 1...Bc5
      • 2.Qe5#
    • 1...Be5
      • 2.Qxe5#
    • 1...Bc7
      • 2.Qxc7#
    • 1...Be7
      • 2.Qe5#
    • 1...Bf8
      • 2.Qe5#
    • 1...e2
      • 2.Qd2#
      • 2.Qc1#
  • Tries
    • 1.Qe1?
      • threat
        • 2.Qxh4#
      • 1...e2
        • 2.Qd2#
        • 2.Qc1#
      • 1...Sf2!
    • 1.Qc7?
      • threat
        • 2.Qxd6#
      • 1...e2
        • 2.Qc1#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bxc7!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Se6#
      • 1...Ke5
        • 2.Se2#
        • 2.Se6#
      • 1...Kg5
        • 2.Se6#
      • 1...Sg5
        • 2.Se2#

This is a version of 224455

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • B(e);N_GUARD::QAB1(B)
    • B(e);N_GUARD::QAB1(B),XB(e)
    • B(e);OGATEB::QAB(B),XB(e)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR2(B),XP(d)
      • Refutation
        • S(b);
    • Try
      • Q(B);P_PINB(e)
      • Threat
        • QAB(B),XB(e)
      • Vars
        • P(a);OGATEB::QAB(B)
        • B(e);OGATE::QAB1(B),XB(e)
      • Refutation
        • B(e);N_SPINB(e),XQ(B)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(c);S_FLIGHT::S(C)
      • S(b);SBLOCK::S(C)
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