MESON Chess Problem Database

Problem Display
PID: 245237 (8/4b3/6p1/2Pqp3/RB1kP1R1/Pp1pN3/3K1Q2/3N4 w - - 0 1)

Banny, Dimitry Nikolaevich

64 Shakhmatnoe obozrenie, 1968

8/4b3/6p1/2Pqp3/RB1kP1R1/Pp1pN3/3K1Q2/3N4

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Sf1#
      • 2.Sc2#
      • 2.Sg2#
      • 2.Sd5#
      • 2.Sf5#
    • 1...Qxc5
      • 2.Bc3#
    • 1...Bxc5
      • 2.Bc3#
  • Tries
    • 1.Ke1?
      • threat
        • 2.Qb2#
      • 1...d2+
        • 2.Qxd2#
      • 1...Qxc5
        • 2.Bc3#
      • 1...Qc4
        • 2.Sf1#
        • 2.Sc2#
        • 2.Sg2#
        • 2.Sd5#
        • 2.Sf5#
      • 1...b2
        • 2.Qxb2#
      • 1...Bh4!
    • 1.Ba5+?
      • 1...Qc4
        • 2.Sf1#
        • 2.Sc2#
        • 2.Sg2#
        • 2.Sxc4#
        • 2.Sd5#
        • 2.Sf5#
        • 2.Rxc4#
      • 1...Kxc5!
    • 1.Ra5?
      • threat
        • 2.Bc3#
      • 1...Qc4
        • 2.Sf1#
        • 2.Sc2#
        • 2.Sg2#
        • 2.Sd5#
        • 2.Sf5#
      • 1...Qxc5!
  • Keys
    • 1.Kc1!
      • threat
        • 2.Qb2#
      • 1...Qc4+
        • 2.Sc2#
      • 1...Qxc5+
        • 2.Bc3#
      • 1...b2+
        • 2.Qxb2#
      • 1...d2+
        • 2.Qxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(d);SBLOCK,XP(J)::R(F)+B(G),DCHECK
    • B(g);SBLOCK,XP(J)::R(F)+B(G),DCHECK
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • QAB(C)
      • Vars
        • P(b);CHECK,OGATEB::QAR2(C),XP(b)
        • Q(d);SBLOCK,XP(J)::R(F)+B(G),DCHECK
        • P(a);::QAB(C),XP(a)
      • Refutation
        • B(g);P_PINQ(C)
    • Try
      • B(G);CHECK
      • Refutation
        • K(c);S_FLIGHT,XP(J)
    • Try
      • R(F);
      • Threat
        • B(G)
      • Refutation
        • Q(d);XP(J)
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • QAB(C)
    • Vars
      • Q(d);CHECK,SBLOCK::QAB(C)+S(E),DCHECK
      • Q(d);CHECK,SBLOCK,XP(J)::R(F)+B(G),DCHECK
      • P(a);CHECK::QAB(C),XP(a)
      • P(b);CHECK,OGATEB::QAR2(C),XP(b)
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