MESON Chess Problem Database

Problem Display
PID: 37900 (b4B2/p4p2/P4p2/3k1p2/B2p1P2/1R4P1/4Q3/7K w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Due Alfieri, 1983

b4B2/p4p2/P4p2/3k1p2/B2p1P2/1R4P1/4Q3/7K

#2

8 + 7

3748 FIDE Album (1983-1985) 1992
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Bb5?
      • 1...d3
        • 2.Rxd3#
      • 1...Bc6
        • 2.Bc4#
      • 1...Bb7!
    • 1.Bd7?
      • threat
        • 2.Rb5#
      • 1...d3
        • 2.Qxd3#
      • 1...Bc6!
    • 1.Be8?
      • threat
        • 2.Rb5#
      • 1...Bc6
        • 2.Bxf7#
      • 1...d3!
    • 1.Re3?
      • threat
        • 2.Qb5#
        • 2.Qa2#
      • 1...d3
        • 2.Qxd3#
      • 1...Bc6
        • 2.Bb3#
        • 2.Qa2#
      • 1...dxe3!
    • 1.Rb4?
      • 1...Bc6
        • 2.Bb3#
      • 1...d3
        • 2.Qa2#
      • 1...Bb7!
    • 1.Rb6?
      • threat
        • 2.Bb3#
      • 1...d3
        • 2.Qxd3#
      • 1...axb6!
    • 1.Rb8?
      • threat
        • 2.Rd8#
      • 1...Bc6
        • 2.Bb3#
      • 1...d3!
    • 1.Qf3+?
      • 1...Kc4
        • 2.Bb5#
        • 2.Rb4#
      • 1...Ke6!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Re3#
      • 1...Kc4+
        • 2.Rf3#
      • 1...Ke6+
        • 2.Rb7#
      • 1...Ke4
        • 2.Qg2#
      • 1...d3
        • 2.Rb4#

Anticipated by 94561(1935)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);
      • Vars
        • P(a);OGATEB::R(C),XP(a)
        • B(g);SBLOCK::B(E)
      • Refutation
        • B(g);
    • Try
      • B(E);
      • Threat
        • R(C)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • B(g);
    • Try
      • B(E);
      • Threat
        • R(C)
      • Vars
        • B(g);SBLOCK::B(E),XP(f)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(a);XR(C)
    • Try
      • R(C);
      • Vars
        • B(g);SBLOCK::B(E)
        • P(a);::QAB(B)
      • Refutation
        • B(g);
    • Try
      • R(C);
      • Threat
        • B(E)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(e);XR(C)
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • B(g);SBLOCK::B(E)
      • Refutation
        • P(a);
    • Try
      • Q(B);CHECK
      • Refutation
        • K(b);P_PINQ(B),S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAB(B)+R(C)
    • Vars
      • K(b);CHECK,S_FLIGHT::QAB(B)+R(C)
      • K(b);S_FLIGHT::QAB(B)
      • P(a);::QAB(B)+R(C)
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