MESON Chess Problem Database

Problem Display
PID: 160945 (4r3/1p4p1/1Q2Pkp1/6R1/1B5P/Rb6/1K2p3/8 w - - 0 1)

Agarkov, Anatoly Yakovlevich

Source?, 1980

4r3/1p4p1/1Q2Pkp1/6R1/1B5P/Rb6/1K2p3/8

#2

7 + 7

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe6
      • 2.Qf2#
    • 1...Re7
      • 2.Bc3#
    • 1...Bd1
      • 2.Rf3#
    • 1...Ba2
      • 2.Rf3#
    • 1...Ba4
      • 2.Rf3#
    • 1...Bc4
      • 2.Rf3#
    • 1...Bxe6
      • 2.Rf3#
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qe5#
        • 2.Qf7#
      • 1...Rxe6
        • 2.Qf4#
      • 1...Bxe6
        • 2.Bc3#
      • 1...e1Q
        • 2.Qf7#
      • 1...e1R
        • 2.Qf7#
      • 1...Re7
        • 2.Qe5#
        • 2.Qxe7#
      • 1...Rf8
        • 2.Qe5#
        • 2.Qe7#
      • 1...Kxe6!
    • 1.e7+?
      • 1...Be6
        • 2.Rf3#
      • 1...Kf7!
  • Keys
    • 1.Qxb7!
      • threat
        • 2.Qf7#
      • 1...Kxe6
        • 2.Ra6#
      • 1...Rxe6
        • 2.Qf3#
      • 1...Bxe6
        • 2.Bc3#
      • 1...Re7
        • 2.Qxe7#
      • 1...Rf8
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(g);P_SPINR(g),SBLOCK,XP(G)::QAR(F)
    • R(g);SBLOCK::B(C)
    • B(b);OGATE::R(B)
    • B(b);OGATE,P_SPINB(b),XP(G)::R(B)
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(g);SBLOCK,XP(G)::QAR2(F)
        • B(b);SBLOCK,XP(G)::B(C)
        • P(a);::QAR1(F)
      • Refutation
        • K(c);P-FLIGHT,XP(G)
    • Try
      • P(G);CHECK
      • Vars
        • B(b);OGATE,P_SPINB(b)::R(B)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(F);XP(e)
    • Threat
      • QAR1(F)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(G)::R(B)
      • R(g);SBLOCK,XP(G)::QAR(F)
      • B(b);SBLOCK,XP(G)::B(C)
      • R(g);N_GUARD::QAB1(F),XR(g)
      • R(g);N_GUARD::QAB1(F)
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