MESON Chess Problem Database

Problem Display
PID: 1087 (2K5/8/3N4/1Ppk4/1r6/3P2B1/8/b3Q3 w - - 0 1)

Wormald, Robert Bownas

The Westminster Papers, 1871

2K5/8/3N4/1Ppk4/1r6/3P2B1/8/b3Q3

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Qe4#
    • 1...Rb2
      • 2.Qe4#
      • 2.Qe5#
    • 1...Rb3
      • 2.Qe4#
    • 1...Rd4
      • 2.Qe5#
    • 1...Re4
      • 2.Qxe4#
    • 1...Rxb5
      • 2.Qe4#
    • 1...Bd4
      • 2.Qe4#
    • 1...Be5
      • 2.Qxe5#
  • Keys
    • 1.d4!
      • threat
        • 2.Qe4#
        • 2.Qe5#
      • 1...Kxd4
        • 2.Qd2#
      • 1...Rxd4
        • 2.Qe5#
      • 1...Rxb5
        • 2.Qe4#
      • 1...Bxd4
        • 2.Qe4#
      • 1...cxd4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::QAB1(A)
    • R(b);S_CUTB(a)::QAR1(A)
    • R(b);N_GUARD::QAB1(A),XR(b)
    • R(b);N_GUARD,XP(D)::QAB1(A)
    • B(a);S_CUTR(b)::QAB1(A)
    • B(a);N_GUARD::QAR1(A),XB(a)
  • Actual
    • P(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(d);OGATEB,P-FLIGHT,XP(B)::QAR2(A)
      • R(b);XP(B)::QAR1(A)
      • R(b);XP(D)::QAB1(A)
      • B(a);XP(B)::QAB1(A)
      • P(c);XP(B)::QAR1(A)
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