MESON Chess Problem Database

Problem Display
PID: 103956 (2b2R1K/4p1Qn/p2p4/8/1p1N2n1/1Rb1k3/2P1p3/4B2B w - - 0 1)

Ivanov, Nikolai

Kudesnik, 1991

2b2R1K/4p1Qn/p2p4/8/1p1N2n1/1Rb1k3/2P1p3/4B2B

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sh2
      • 2.Qg1#
    • 1...Se5
      • 2.Qg1#
    • 1...Sh6
      • 2.Qg1#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qd4#
      • 1...Sgf6
        • 2.Qg3#
      • 1...Shf6
        • 2.Qg5#
      • 1...Se5
        • 2.Qg1#
      • 1...e5
        • 2.Qa7#
      • 1...axb5!
    • 1.Sf5+?
      • 1...Kf4
        • 2.Bg3#
      • 1...Bxf5!
    • 1.Se6?
      • threat
        • 2.Qd4#
      • 1...Se5
        • 2.Qg1#
      • 1...Sgf6
        • 2.Qg1#
        • 2.Qg3#
      • 1...Shf6
        • 2.Qg5#
      • 1...Bxe6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qd4#
      • 1...Sgf6
        • 2.Qg3#
      • 1...Shf6
        • 2.Qg5#
      • 1...Se5
        • 2.Qg1#
      • 1...e5
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(e);OGATE::QAB(F)
  • Tries
    • Try
      • S(E);P_SPINQ(F)
      • Threat
        • QAB1(F)
      • Vars
        • S(e);N_PINQ(F)::QAR2(F)
        • S(i);N_PINQ(F)::QAB(F)
        • S(e);N_PINQ(F)::QAB(F)
        • P(h);N_PINQ(F)::QAB(F)
      • Refutation
        • P(f);XS(E)
    • Try
      • S(E);CHECK,P_SPINQ(F)
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::B(A)
      • Refutation
        • B(j);XS(E)
    • Try
      • S(E);P_SPINQ(F)
      • Threat
        • QAB1(F)
      • Vars
        • S(e);N_PINQ(F)::QAB(F)
        • S(i);N_PINQ(F)::QAB(F)
      • Refutation
        • B(j);XS(E)
  • Actual
    • S(E);P_SPINQ(F)
    • Threat
      • QAB1(F)
    • Vars
      • S(e);N_PINQ(F)::QAR2(F)
      • S(i);N_PINQ(F)::QAB(F)
      • S(e);N_PINQ(F)::QAB(F)
      • P(h);N_PINQ(F)::QAB(F)
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