MESON Chess Problem Database

Problem Display
PID: 21484 (8/4p3/Kp6/p2N2Q1/Rq2k3/2P5/3pB3/8 w - - 0 1)

Windle, REL

2nd Prize, Good Companions (April Meredith Ty.), 1919

8/4p3/Kp6/p2N2Q1/Rq2k3/2P5/3pB3/8

#2

6 + 6

3132 The Good Companion Two-Mover 1922
5064 100 Years of the American Two-move Chess Problem 1962
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4+
      • 2.Rxc4#
    • 1...Qd4
      • 2.Rxd4#
    • 1...e5
      • 2.Sf6#
    • 1...e6
      • 2.Sf6#
  • Keys
    • 1.c4!
      • threat
        • 2.Qf4#
      • 1...Qxc4+
        • 2.Rxc4#
      • 1...Qb5+
        • 2.cxb5#
      • 1...Kd4
        • 2.Qe3#
      • 1...Qd6
        • 2.c5#
      • 1...e5
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(b);CHECK,OGATE::R(C),XQ(b)
    • Q(b);OGATE::R1(C),XQ(b)
    • P(f);N_GUARD::S(D)
  • Actual
    • P(B);N_PINQ(b)
    • Threat
      • QAR1(E)
    • Vars
      • Q(b);CHECK,OGATE,P_SPINQ(b),XP(B)::R(C),XQ(b)
      • Q(b);CHECK,OGATE::R(C)+P(B),XQ(b)
      • K(c);P-FLIGHT::QAB1(E)
      • Q(b);::R(C)+P(B)
      • P(f);SBLOCK::QAR2(E)
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