MESON Chess Problem Database

Problem Display
PID: 183565 (3N4/1B1p2n1/7N/RKP1k1Pp/1B2ppp1/2p5/3P4/b5Q1 w - - 0 1)

Jankevics, Karlis

Sachova skladba, 2009

3N4/1B1p2n1/7N/RKP1k1Pp/1B2ppp1/2p5/3P4/b5Q1

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Shf7#
    • 1...Se6
      • 2.Sdf7#
    • 1...cxd2
      • 2.Qxa1#
    • 1...c2
      • 2.Qxa1#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qxe4#
        • 2.d4#
      • 1...cxd2
        • 2.Qxe4#
      • 1...Sf5
        • 2.Shf7#
        • 2.Qxe4#
      • 1...Se6
        • 2.Sdf7#
        • 2.Qxe4#
      • 1...c2
        • 2.Qxe4#
      • 1...d5
        • 2.d4#
      • 1...fxe3!
    • 1.Qb1?
      • threat
        • 2.Qxe4#
      • 1...Kd4
        • 2.Qxe4#
      • 1...c2
        • 2.Qxa1#
      • 1...e3
        • 2.Qe4#
      • 1...d5!
    • 1.dxc3?
      • threat
        • 2.Qd4#
      • 1...Bxc3
        • 2.Bxc3#
      • 1...f3
        • 2.Qg3#
      • 1...Sf5
        • 2.Shf7#
      • 1...Se6
        • 2.Sdf7#
      • 1...e3!
  • Keys
    • 1.Kc4!
      • threat
        • 2.Qd4#
      • 1...d5+
        • 2.cxd5 ep#
      • 1...cxd2
        • 2.Qxa1#
      • 1...f3
        • 2.Qg3#
      • 1...Sf5
        • 2.Shf7#
      • 1...Se6
        • 2.Sdf7#
      • 1...c2
        • 2.Qxa1#
      • 1...e3
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(i);SBLOCK::S(H)
    • S(i);SBLOCK::S(J)
    • P(b);OGATEB,XP(B)::QAB(A),XB(a)
    • P(b);OGATEB::QAB(A),XB(a)
  • Tries
    • Try
      • Q(A);P_PINP(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);XP(B)::QAR1(A),XP(c)
        • P(b);::QAR1(A),XP(c)
        • P(h);::P(B)
      • Refutation
        • P(d);N_SPINP(c),XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(c)
      • Vars
        • K(f);S_FLIGHT::QAR1(A),XP(c)
        • P(b);OGATEB::QAB(A),XB(a)
        • P(c);::QAR1(A)
      • Refutation
        • P(h);
    • Try
      • P(B);XP(b)
      • Threat
        • QAB1(A)
      • Vars
        • B(a);OGATE,XP(B)::B(C),XB(a)
        • P(d);OGATEB::QAB(A)
        • S(i);SBLOCK::S(H)
        • S(i);SBLOCK::S(J)
      • Refutation
        • P(c);
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • QAB1(A)
    • Vars
      • P(h);CHECK,OGATE::R(D)+P(F),XP(h),EP
      • P(b);OGATEB,XP(B)::QAB(A),XB(a)
      • P(d);OGATEB::QAB(A)
      • S(i);SBLOCK::S(H)
      • S(i);SBLOCK::S(J)
      • P(b);OGATEB::QAB(A),XB(a)
      • P(c);N_GUARD::P(B)
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