MESON Chess Problem Database

Problem Display
PID: 185336 (1b6/1P1P2p1/1Q1PN3/r1PkPP2/6NR/p2P1R2/n6K/8 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Kudesnik, 2018

1b6/1P1P2p1/1Q1PN3/r1PkPP2/6NR/p2P1R2/n6K/8

#2

13 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Qxc5#
    • 1...Ra8
      • 2.bxa8Q#
      • 2.bxa8B#
    • 1...Bxd6
      • 2.Qxd6#
  • Tries
    • 1.c6?
      • threat
        • 2.Sf4#
      • 1...Ra4
        • 2.Qc5#
        • 2.Qb5#
      • 1...Rc5
        • 2.Qxc5#
      • 1...g5!
    • 1.d8S?
      • threat
        • 2.Qb3#
        • 2.Qc6#
      • 1...Rxc5
        • 2.Qxc5#
      • 1...Ra4
        • 2.Qc6#
      • 1...Rb5
        • 2.Qc6#
      • 1...Ra6
        • 2.Qb3#
      • 1...Sc1
        • 2.Qc6#
      • 1...Sb4!
  • Keys
    • 1.d4!
      • threat
        • 2.Se3#
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(c);OGATE,XP(F)::QAR1(I),XR(c)
    • R(c);OGATE::PXR(c)=Q
    • B(f);OGATE,P_PINP(G),XP(J)::QAR1(I),XB(f)
  • Tries
    • Try
      • P(F);
      • Threat
        • S(K)
      • Vars
        • R(c);N_GUARD::QAR1(I),XR(c)
      • Refutation
        • P(e);
    • Try
      • P(M);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATE,XP(F)::QAR1(I),XR(c)
        • R(c);::QAB1(I)
        • R(c);::QAB(I)
        • S(a);::QAB1(I)
      • Refutation
        • S(a);
  • Actual
    • P(B);
    • Threat
      • S(D)
    • Vars
      • K(d);S_FLIGHT::QAB1(I)
      • K(d);S_FLIGHT::QAB(I)
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