MESON Chess Problem Database

Problem Display
PID: 243154 (7Q/8/8/8/2r1pN2/1N2k1P1/2p3K1/6b1 w - - 0 1)

Banny, Dimitry Nikolaevich

Shakhmaty v SSSR, 1972

7Q/8/8/8/2r1pN2/1N2k1P1/2p3K1/6b1

#2

5 + 5

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qxc3#
      • 2.Qd4#
    • 1...Ra4
      • 2.Qc3#
    • 1...Rb4
      • 2.Qc3#
    • 1...Rd4
      • 2.Qxd4#
    • 1...Rc5
      • 2.Qd4#
    • 1...Rc6
      • 2.Qd4#
    • 1...Rc7
      • 2.Qd4#
    • 1...Rc8
      • 2.Qd4#
  • Keys
    • 1.Qb2!
      • threat
        • 2.Qc1#
      • 1...c1Q
        • 2.Qe2#
      • 1...c1S
        • 2.Qd2#
      • 1...c1B
        • 2.Qe2#
      • 1...c1R
        • 2.Qd2#
        • 2.Qe2#
      • 1...Rd4
        • 2.Qxd4#

This anticipates 139938(2003)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(d);N_GUARD::QAR2(E)
    • R(d);N_GUARD::QAB1(E),XR(d)
    • R(d);N_GUARD::QAB1(E)
  • Actual
    • Q(E);
    • Threat
      • QAB(E)
    • Vars
      • P(b);OGATE::QAR1(E)
      • P(b);OGATE::QAB1(E)
      • R(d);N_GUARD::QAB1(E),XR(d)
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