MESON Chess Problem Database

Problem Display
PID: 232813 (q1Q5/Bp2p2K/1n2P3/5P2/4k1N1/3R1R2/2b1npB1/5rb1 w - - 0 1)

Kichigin, Viktor Vladimirovich

Freie Presse, 1985

q1Q5/Bp2p2K/1n2P3/5P2/4k1N1/3R1R2/2b1npB1/5rb1

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qxb7+?
      • 1...Sd5
        • 2.Rde3#
      • 1...Qxb7!
    • 1.Qc4+?
      • 1...Sd4
        • 2.Rde3#
        • 2.Rxd4#
        • 2.Rxf2#
        • 2.Qxd4#
      • 1...Sxc4!
    • 1.Qc6+?
      • 1...Sd5
        • 2.Rde3#
        • 2.Qxd5#
      • 1...bxc6!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Rxf2#
      • 1...Kxd5
        • 2.Rd3#
      • 1...Sxd5
        • 2.Qxc2#
      • 1...Sd4
        • 2.Re5#
      • 1...Sf4
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);CHECK,XP(h)
      • Vars
        • S(g);P_SPINS(g)::R1(B)
      • Refutation
        • Q(j);XQ(I)
    • Try
      • Q(I);CHECK
      • Refutation
        • S(g);XQ(I)
    • Try
      • Q(I);CHECK
      • Refutation
        • P(h);XQ(I)
  • Actual
    • R(B);
    • Threat
      • B(A)+R(C),XP(e)
    • Vars
      • K(f);P_PINP(E),S_FLIGHT,XR(B)::B(A)+R(C),DCHECK
      • S(g);SBLOCK,XR(B)::QAB(I),XB(c)
      • S(d);SBLOCK::R1(B)
      • S(d);SBLOCK::B(A)+R(C),DCHECK
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