MESON Chess Problem Database

Problem Display
PID: 235355 (8/2N4B/b1pN4/1pP1k1p1/1p2P1Q1/p5K1/2RB4/4R3 w - - 0 1)

Paslack, Rainer

Comm., Europa-Rochade, 1989

8/2N4B/b1pN4/1pP1k1p1/1p2P1Q1/p5K1/2RB4/4R3

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.e5#
    • 1...Kf6
      • 2.Qxg5#
    • 1...b3
      • 2.Bc3#
  • Tries
    • 1.Sf7+?
      • 1...Kd4
        • 2.Qd7#
        • 2.e5#
      • 1...Kf6!
    • 1.Be3?
      • threat
        • 2.Qf5#
        • 2.Qe6#
        • 2.Qxg5#
      • 1...Kf6
        • 2.Qxg5#
      • 1...Bc8!
    • 1.Bxb4?
      • threat
        • 2.Bc3#
      • 1...Kd4
        • 2.e5#
      • 1...Kf6!
    • 1.Bf4+?
      • 1...Kd4
        • 2.Rd1#
        • 2.Qd1#
      • 1...Kf6
        • 2.Qxg5#
      • 1...gxf4+!
    • 1.Qd1?
      • threat
        • 2.Qa1#
      • 1...Kd4
        • 2.Bf4#
      • 1...b3
        • 2.Bc3#
      • 1...Kf6!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qg7#
      • 1...Kd4
        • 2.Sf7#
      • 1...Kf6
        • 2.e5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(d);OGATE,S_FLIGHT::QAR(F)+P(E)
    • K(d);S_FLIGHT::QAB1(F),XP(e)
    • P(b);N_GUARD::B(C)
  • Tries
    • Try
      • S(H);CHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • B(C);
      • Threat
        • DUALS(3)
      • Vars
        • K(d);S_FLIGHT::QAB1(F),XP(e)
      • Refutation
        • B(f);
    • Try
      • B(C);XP(b)
      • Threat
        • B(C)
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR(F)+P(E)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(F),XP(e)
      • Refutation
        • P(e);CHECK,XB(C)
    • Try
      • Q(F);
      • Threat
        • QAB(F)
      • Vars
        • K(d);S_FLIGHT::QAR(F)+B(C)
        • P(b);N_GUARD::B(C)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • K(d);S_FLIGHT::QAR(F)+S(H)
      • K(d);OGATE,S_FLIGHT::P(E)
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