MESON Chess Problem Database

Problem Display
PID: 161357 (3R4/8/8/8/8/4Q1NP/6kr/4K3 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1996

3R4/8/8/8/8/4Q1NP/6kr/4K3

#2

5 + 2

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh3
      • 2.Rd2#
      • 2.Qf2#
  • Tries
    • 1.Qe2+?
      • 1...Kg1
        • 2.Qf1#
      • 1...Kxg3
        • 2.Qg4#
      • 1...Kxh3!
    • 1.Qf3+?
      • 1...Kg1
        • 2.Qf1#
      • 1...Kxh3
        • 2.Sf5#
        • 2.Rh8#
      • 1...Kxf3!
  • Keys
    • 1.Rg8!
      • 1...Rh1+
        • 2.Sf1#
      • 1...Kxh3
        • 2.Sf5#
      • 1...Rxh3
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XP(D)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
  • Actual
    • R(E);
    • Vars
      • R(b);CHECK,SBLOCK::R(E)+S(C)
      • K(a);S_FLIGHT,XP(D)::QAR(B)+S(C)
      • R(b);SBLOCK,XP(D)::QAR1(B)
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