MESON Chess Problem Database

Problem Display
PID: 201785 (8/P7/8/3B4/p7/8/1PRN2b1/k3K2R w K - 0 1)

Avram, Constantine

Revista Romana de Sah, 1976

8/P7/8/3B4/p7/8/1PRN2b1/k3K2R

#2

7 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.0-0#
  • Tries
    • 1.Ke2+?
      • 1...Bf1+
        • 2.Rxf1#
      • 1...Bxh1!
    • 1.Kf2+?
      • 1...Bf1
        • 2.Rxf1#
      • 1...Bxh1!
    • 1.a8Q?
      • threat
        • 2.Qxa4#
      • 1...a3
        • 2.Qxa3#
      • 1...Bxd5!
    • 1.a8R?
      • threat
        • 2.Rxa4#
      • 1...a3
        • 2.Rxa3#
      • 1...Bxd5!
  • Keys
    • 1.b4!
      • threat
        • 2.Ra2#
      • 1...Bxd5
        • 2.0-0#
      • 1...axb4 ep
        • 2.a8Q#
        • 2.a8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(b);::0-0
  • Tries
    • Try
      • K(A);CHECK,P-FLIGHT
      • Vars
        • B(b);CHECK,N_GUARD,P_SPINB(b)::R(B),XB(b)
      • Refutation
        • B(b);XR(B)
    • Try
      • K(A);CHECK,S_FLIGHT
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::R(B),XB(b)
      • Refutation
        • B(b);XR(B)
    • Try
      • P(G);P_PINP(c)
      • Threat
        • QAR(G),XP(c)
      • Vars
        • P(c);OGATE::QAR2(G),XP(c)
      • Refutation
        • B(b);XB(F)
    • Try
      • P(G);P_PINP(c)
      • Threat
        • R(G),XP(c)
      • Vars
        • P(c);OGATE::R(G),XP(c)
      • Refutation
        • B(b);XB(F)
  • Actual
    • P(C);
    • Threat
      • R1(D)
    • Vars
      • B(b);XB(F)::0-0
      • P(c);EP,XP(C)::P=Q
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