MESON Chess Problem Database

Problem Display
PID: 134241 (8/8/8/8/3NpP2/r1p1Bp2/1pN2p1K/1Q2bk2 w - - 0 1)

Shinkman, William Anthony

Source?, 0000

8/8/8/8/3NpP2/r1p1Bp2/1pN2p1K/1Q2bk2

#2

6 + 8

1829 The Theory of Pawn Promotion 1912

SOLUTION

  • SOUND
  • Tries
    • 1.Bd2?
      • threat
        • 2.Se3#
      • 1...e3
        • 2.Sxe3#
      • 1...cxd2!
    • 1.Bxf2?
      • threat
        • 2.Qxe1#
      • 1...Kxf2
        • 2.Qxe1#
      • 1...Ra1!
  • Keys
    • 1.Bc1!
      • threat
        • 2.Se3#
      • 1...bxc1Q
        • 2.Qb5#
      • 1...bxc1B
        • 2.Qb5#
      • 1...Bd2
        • 2.Bxd2#
      • 1...e3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Threat
        • S(B)
      • Vars
        • P(h);::S(B),XP(h)
      • Refutation
        • P(f);XB(D)
    • Try
      • B(D);XP(d)
      • Threat
        • QAR1(A),XB(a)
      • Vars
        • K(b);N_SPINB(a),P-FLIGHT,XB(D)::QAB1(A),XB(a)
      • Refutation
        • R(e);
  • Actual
    • B(D);N_PINB(a)
    • Threat
      • S(B)
    • Vars
      • P(c);OGATE,XB(D)::QAB(A)
      • B(a);OGATEB::QAR(A)+B(D),XB(a)
      • P(h);::S(B),XP(h)
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