MESON Chess Problem Database

Problem Display
PID: 238270 (2b2R2/4p3/1Bnkq2R/3p2N1/8/4N3/1Q6/4K3 w - - 0 1)

Segers, Marcel

Skakbladet, 1930

2b2R2/4p3/1Bnkq2R/3p2N1/8/4N3/1Q6/4K3

#2

7 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd7
      • 2.Sf7#
  • Tries
    • 1.Rd8+?
      • 1...Bd7
        • 2.Sf7#
        • 2.Rxe6#
      • 1...Sxd8!
    • 1.Qh2+?
      • 1...Kd7
        • 2.Qc7#
      • 1...Se5!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qxd5#
      • 1...Ke5
        • 2.Sc4#
      • 1...Kd7
        • 2.Rd8#
      • 1...Sb4
        • 2.Sf7#
      • 1...d4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(f);SBLOCK::S(D)
  • Tries
    • Try
      • R(G);CHECK
      • Refutation
        • S(b);XR(G)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_SPINQ(d),OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • S(b);N_PINS(C),P_SPINS(b)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B),XP(a)
    • Vars
      • K(c);N_PINS(C),N_SPINQ(d),P_SPINP(a),S_FLIGHT::S(C)
      • K(c);N_SPINQ(d),P-FLIGHT,P_SPINS(b)::R1(G)
      • S(b);::S(D)
      • P(a);::QAR1(B)
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