MESON Chess Problem Database

Problem Display
PID: 161535 (3Q2Bn/2p2p1R/2p2Pk1/2R5/4Kp1b/5Pp1/6P1/8 w - - 0 1)

Antonov, Yuri Mikhailovich

Sahs, 1985

3Q2Bn/2p2p1R/2p2Pk1/2R5/4Kp1b/5Pp1/6P1/8

#2

8 + 8

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Ke5?
      • 1...Bxf6+
        • 2.Qxf6#
      • 1...Bg5
        • 2.Qd3#
      • 1...Kg5!
    • 1.Bxf7+?
      • 1...Kxh7
        • 2.Rh5#
      • 1...Sxf7!
    • 1.Rhh5?
      • threat
        • 2.Bh7#
      • 1...Bg5
        • 2.Rcxg5#
      • 1...Bxf6!
    • 1.Qd3?
      • 1...Bxf6
        • 2.Kxf4#
      • 1...Bg5
        • 2.Ke5#
      • 1...Kxf6!
    • 1.Qf8?
      • threat
        • 2.Rh6#
        • 2.Qh6#
        • 2.Qg7#
      • 1...Bxf6
        • 2.Rh6#
        • 2.Qh6#
      • 1...Bg5
        • 2.Qg7#
      • 1...Kxf6!
  • Keys
    • 1.Kxf4!
      • 1...Bg5+
        • 2.Rxg5#
      • 1...Bxf6
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • B(c);CHECK,OGATE,XP(E)::QAR1(G),XB(c)
        • B(c);SBLOCK::QAB(G)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • B(H);CHECK,XP(g)
      • Vars
        • K(e);S_FLIGHT,XR(F)::R(D)
      • Refutation
        • S(h);XB(H)
    • Try
      • R(F);
      • Threat
        • B(H)
      • Vars
        • B(c);N_GUARD::R1(D),XB(c)
      • Refutation
        • B(c);XP(E)
    • Try
      • Q(G);
      • Vars
        • B(c);SBLOCK,XP(E)::QAB(G)+K(C),XP(b)
        • B(c);SBLOCK::QAB(G)+K(C)
      • Refutation
        • K(e);P-FLIGHT,XP(E)
    • Try
      • Q(G);
      • Threat
        • DUALS(3)
      • Vars
        • B(c);::QAR1(G)
      • Refutation
        • K(e);P-FLIGHT,P_SPINP(g),XP(E)
  • Actual
    • K(C);P-FLIGHT,XP(b)
    • Vars
      • B(c);CHECK,N_GUARD::R1(D),XB(c)
      • B(c);SBLOCK,XP(E)::QAB(G)
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