MESON Chess Problem Database

Problem Display
PID: 167213 (K7/1NppR2B/R1P4p/b2kp3/PPpP3r/3pqN2/Q2p4/6B1 w - - 0 1)

Einat, Paz

The Problemist, 2017

K7/1NppR2B/R1P4p/b2kp3/PPpP3r/3pqN2/Q2p4/6B1

#2

12 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg1
      • 2.Rxe5#
    • 1...Qf2
      • 2.Rxe5#
    • 1...Qxf3
      • 2.Rxe5#
    • 1...Qe4
      • 2.Bg8#
    • 1...Re4
      • 2.Bg8#
    • 1...e4
      • 2.Bg8#
      • 2.Re5#
  • Tries
    • 1.Sxe5?
      • threat
        • 2.Qxc4#
      • 1...Kxd4
        • 2.Qxc4#
      • 1...Qxe5
        • 2.Rxe5#
      • 1...Rxd4
        • 2.Rxa5#
      • 1...Qxd4!
    • 1.Sc5?
      • threat
        • 2.Rxd7#
      • 1...Kd6
        • 2.Rxd7#
      • 1...dxc6
        • 2.Rd7#
      • 1...d6
        • 2.Bg8#
      • 1...Bb6!
    • 1.Sd8?
      • threat
        • 2.Rxd7#
      • 1...Kd6
        • 2.Rxd7#
      • 1...dxc6
        • 2.Rd7#
      • 1...d6
        • 2.Rxa5#
      • 1...Bxb4!
  • Keys
    • 1.Sxd2!
      • threat
        • 2.Qxc4#
      • 1...Kxd4
        • 2.Qxc4#
      • 1...Qxd2
        • 2.Rxe5#
      • 1...Qxd4
        • 2.Bg8#
      • 1...Rxd4
        • 2.Bg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(c);N_GUARD,XB(A)::R1(J),XP(h)
    • Q(c);N_GUARD::R1(J),XP(h)
    • Q(c);N_GUARD,XS(C)::R1(J),XP(h)
    • Q(c);SBLOCK::B(K)
    • R(e);SBLOCK::B(K)
  • Tries
    • Try
      • S(C);XP(h)
      • Threat
        • QAB1(B),XP(d)
      • Vars
        • K(g);N_SPINP(d),P-FLIGHT,P_SPINQ(c),XP(F)::QAR1(B),XP(d)
        • Q(c);OGATE,XS(C)::R1(J),XQ(c)
        • R(e);SBLOCK,XP(F)::R(G),XB(f)
      • Refutation
        • Q(c);XP(F)
    • Try
      • S(I);
      • Threat
        • R(J),XP(k)
      • Vars
        • K(g);N_SPINP(d),P-FLIGHT::R1(J),XP(k)
        • P(k);XP(H)::R(J)
        • P(k);SBLOCK::B(K)
      • Refutation
        • B(f);
    • Try
      • S(I);
      • Threat
        • R(J),XP(k)
      • Vars
        • K(g);N_SPINP(d),P-FLIGHT::R1(J),XP(k)
        • P(k);XP(H)::R(J)
        • P(k);SBLOCK::R(G),XB(f)
      • Refutation
        • B(f);XP(E)
  • Actual
    • S(C);XP(a)
    • Threat
      • QAB1(B),XP(d)
    • Vars
      • K(g);N_SPINP(d),P-FLIGHT,P_SPINQ(c),XP(F)::QAR1(B),XP(d)
      • Q(c);N_GUARD,XS(C)::R1(J),XP(h)
      • Q(c);XP(F)::B(K)
      • R(e);SBLOCK,XP(F)::B(K)
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