MESON Chess Problem Database

Problem Display
PID: 163319 (3R4/7B/K1p5/Q1Pbp3/1pk1p2b/2p1R3/2P5/2B5 w - - 0 1)

Stepochkin, Anatoly Viktorovich

idee & form, 1991

3R4/7B/K1p5/Q1Pbp3/1pk1p2b/2p1R3/2P5/2B5

#2

8 + 8

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rxe4#
      • 2.Qxb4#
    • 1...Be6
      • 2.Rxe4#
    • 1...Bf7
      • 2.Rxe4#
    • 1...Bg8
      • 2.Bxg8#
      • 2.Rxe4#
    • 1...b3
      • 2.Qxc3#
  • Tries
    • 1.Bg8?
      • threat
        • 2.Rxe4#
      • 1...Kd4
        • 2.Qxb4#
      • 1...Bf2!
    • 1.Qb5+?
      • 1...Kd4
        • 2.Rxe4#
        • 2.Qxb4#
      • 1...cxb5!
  • Keys
    • 1.Ba3!
      • threat
        • 2.Qxb4#
      • 1...Kd4
        • 2.Rxe4#
      • 1...bxa3
        • 2.Qxc3#
      • 1...b3
        • 2.Qxc3#
        • 2.Qb4#
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(f);N_GUARD::R(C),XP(d)
    • P(b);OGATE::QAR1(D),XP(a)
  • Tries
    • Try
      • B(G);P_PINB(f)
      • Threat
        • R(C),XP(d)
      • Vars
        • K(c);P-FLIGHT::QAR2(D),XP(b)
      • Refutation
        • B(e);
    • Try
      • Q(D);CHECK
      • Refutation
        • P(h);XQ(D)
  • Actual
    • B(A);
    • Threat
      • QAR1(D),XP(b)
    • Vars
      • K(c);P-FLIGHT,P_SPINB(f)::R1(C),XP(d)
      • P(b);OGATE,XB(A)::QAR1(D),XP(a)
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