MESON Chess Problem Database

Problem Display
PID: 245411 (r2n4/1b3n2/3N2N1/R1PkP3/QppP4/2p2P1B/4Kbp1/6B1 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Mat, 1988

r2n4/1b3n2/3N2N1/R1PkP3/QppP4/2p2P1B/4Kbp1/6B1

#2

11 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qd1#
    • 1...Be1
      • 2.Sf4#
      • 2.Se7#
    • 1...Bg3
      • 2.Se7#
    • 1...Bh4
      • 2.Sf4#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sf4#
      • 1...Ke6
        • 2.Se3#
        • 2.Sfe7#
        • 2.Sf4#
      • 1...Bxd4
        • 2.Sfe7#
      • 1...Bg3
        • 2.Sfe7#
      • 1...Se6
        • 2.Sge7#
      • 1...Be3!
    • 1.Bxf2?
      • threat
        • 2.Sf4#
        • 2.Se7#
      • 1...Sc6
        • 2.Sf4#
      • 1...Se6
        • 2.Se7#
      • 1...g1S+!
    • 1.c6+?
      • 1...Kxd4
        • 2.Sf5#
        • 2.Bxf2#
        • 2.Qd1#
      • 1...Rxa5!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Se7#
      • 1...Kc6
        • 2.Se7#
      • 1...Bxd4
        • 2.Sc7#
      • 1...Bh4
        • 2.Sc7#
      • 1...Sc6
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(f);OGATEB,P-FLIGHT,P_SPINB(a),XP(F)::QAR(E)
    • B(a);::S(K)
  • Tries
    • Try
      • S(J);
      • Threat
        • S(K)
      • Vars
        • B(a);XP(F)::S(J)
        • B(a);::S(J)
        • S(j);SBLOCK::S(K)
      • Refutation
        • B(a);
    • Try
      • B(A);XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • S(j);::S(K)
      • Refutation
        • P(b);CHECK
    • Try
      • P(H);CHECK
      • Refutation
        • R(i);XR(G)
  • Actual
    • S(J);
    • Threat
      • S(K)
    • Vars
      • K(f);S_FLIGHT::S(K)
      • B(a);XP(F)::S(J)
      • B(a);::S(J)
      • S(j);SBLOCK::S(K)
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