MESON Chess Problem Database

Problem Display
PID: 168927 (4B3/1pN1P3/5B2/RK1N1kPp/5p2/2p2Q1P/2pqp3/4b3 w - - 0 1)

Zamanov, Vidadi

SuperProblem, 2015

4B3/1pN1P3/5B2/RK1N1kPp/5p2/2p2Q1P/2pqp3/4b3

#2

10 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Qd3#
    • 1...Qe3
      • 2.Sxe3#
    • 1...Qd1
      • 2.Se3#
      • 2.Qxf4#
    • 1...Qd3+
      • 2.Qxd3#
    • 1...Qxd5+
      • 2.Qxd5#
  • Tries
    • 1.Kb6?
      • threat
        • 2.Se3#
      • 1...Qe3+
        • 2.Sxe3#
      • 1...Qxd5
        • 2.Rxd5#
        • 2.Qxd5#
        • 2.Qd3#
      • 1...Qd4+!
    • 1.Ra4?
      • threat
        • 2.Qe4#
      • 1...Qd3+
        • 2.Qxd3#
      • 1...Qxd5+
        • 2.Qxd5#
      • 1...Qe3
        • 2.Sxe3#
      • 1...Qd4!
    • 1.Qg4+?
      • 1...Ke4
        • 2.Bg6#
      • 1...hxg4!
  • Keys
    • 1.Sxf4!
      • threat
        • 2.Bg6#
      • 1...Qd3+
        • 2.Sxd3#
      • 1...Qd5+
        • 2.Sfxd5#
      • 1...Qd7+
        • 2.Bxd7#
      • 1...Qxf4
        • 2.Kb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(c);N_GUARD::QAB(A)
    • Q(c);N_GUARD::S(E),XQ(c)
    • Q(c);CHECK,N_GUARD::QAB(A),XQ(c)
    • Q(c);CHECK,OGATE,XS(E)::QAR2(A),XQ(c)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • R(C)+S(E),DCHECK
      • Vars
        • Q(c);CHECK::R(C)+S(E),DCHECK,XQ(c)
      • Refutation
        • Q(c);CHECK
    • Try
      • R(C);
      • Threat
        • QAB1(A)
      • Vars
        • Q(c);CHECK,N_GUARD::QAB(A),XQ(c)
        • Q(c);CHECK,OGATE,XS(E)::QAR2(A),XQ(c)
        • Q(c);N_GUARD::S(E),XQ(c)
      • Refutation
        • Q(c);
    • Try
      • Q(A);CHECK,N_PINP(f)
      • Vars
        • K(g);P_SPINP(f),S_FLIGHT::B(J)
      • Refutation
        • P(h);XQ(A)
  • Actual
    • S(E);XP(f)
    • Threat
      • B(J)
    • Vars
      • Q(c);CHECK,N_GUARD::QAR(A)+S(E),XQ(c)
      • Q(c);CHECK,N_GUARD::B(J),XQ(c)
      • Q(c);N_GUARD,P_SPINQ(c),XS(E)::R(C)+K(D)
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