MESON Chess Problem Database

Problem Display
PID: 152349 (3r4/4b3/1Ppk1p2/3BN3/PN3RP1/Q2K4/7B/3R4 w - - 0 1)

Pimenov, Sergey Ivanovich

Pimenov, Vitaly Ivanovich

Swiat Szachowy, 1930

3r4/4b3/1Ppk1p2/3BN3/PN3RP1/Q2K4/7B/3R4

#2

11 + 5

35 L'Italia Scacchistica 1930
5454 Near Snap 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Rff1#
      • 2.Rf2#
      • 2.Rf3#
      • 2.Rc4#
      • 2.Rd4#
      • 2.Re4#
      • 2.Rf5#
  • Tries
    • 1.Sc4+?
      • 1...Kc5
        • 2.Bg1#
      • 1...Kd7!
    • 1.Sf7+?
      • 1...Kc5
        • 2.Bg1#
      • 1...Kd7!
    • 1.Ba2?
      • threat
        • 2.Sbxc6#
      • 1...Kc5+
        • 2.Sd5#
      • 1...Kxe5+
        • 2.Rd4#
      • 1...c5
        • 2.Ke4#
      • 1...fxe5!
    • 1.Bb3?
      • threat
        • 2.Sbxc6#
      • 1...Kc5+
        • 2.Sd5#
      • 1...Kxe5+
        • 2.Rd4#
      • 1...c5
        • 2.Ke4#
      • 1...fxe5!
    • 1.Bc4?
      • threat
        • 2.Sbxc6#
      • 1...Kc5+
        • 2.Sd5#
      • 1...Kxe5+
        • 2.Rd4#
      • 1...c5
        • 2.Ke4#
      • 1...fxe5!
    • 1.Bg8?
      • threat
        • 2.Sbxc6#
      • 1...Kc5+
        • 2.Sd5#
      • 1...Kxe5+
        • 2.Rd4#
      • 1...fxe5
        • 2.Kc4#
      • 1...c5
        • 2.Ke4#
      • 1...Rxg8!
    • 1.Rxf6+?
      • 1...Kc5
        • 2.Bg1#
        • 2.Rxc6#
      • 1...Bxf6!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Sbxc6#
      • 1...Kc5+
        • 2.Sd5#
      • 1...Kxe5+
        • 2.Rd4#
      • 1...fxe5
        • 2.Kc4#
      • 1...c5
        • 2.Ke4#

This anticipates 156829(2015)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(b);P_PINB(I),S_FLIGHT::B(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(J);CHECK
      • Vars
        • K(b);P_PINB(I),S_FLIGHT::B(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(I);
      • Threat
        • QAB(C)+S(F),XP(a)
      • Vars
        • K(b);CHECK,S_FLIGHT::QAB(C)+S(F)
        • K(b);CHECK,S_FLIGHT,XS(J)::B(B)+R(G)
        • P(a);SBLOCK::R(A)+K(D)
      • Refutation
        • P(c);XS(J)
    • Try
      • B(I);
      • Threat
        • QAB(C)+S(F),XP(a)
      • Vars
        • K(b);CHECK,S_FLIGHT::QAB(C)+S(F)
        • K(b);CHECK,S_FLIGHT,XS(J)::B(B)+R(G)
        • P(a);SBLOCK::R(A)+K(D)
      • Refutation
        • P(c);XS(J)
    • Try
      • B(I);
      • Threat
        • QAB(C)+S(F),XP(a)
      • Vars
        • K(b);CHECK,S_FLIGHT::QAB(C)+S(F)
        • K(b);CHECK,S_FLIGHT,XS(J)::B(B)+R(G)
        • P(a);SBLOCK::R(A)+K(D)
      • Refutation
        • P(c);XS(J)
    • Try
      • B(I);
      • Threat
        • QAB(C)+S(F),XP(a)
      • Vars
        • K(b);CHECK,S_FLIGHT::QAB(C)+S(F)
        • K(b);CHECK,S_FLIGHT,XS(J)::B(B)+R(G)
        • P(c);SBLOCK,XS(J)::R(A)+K(D)
        • P(a);SBLOCK::R(A)+K(D)
      • Refutation
        • R(e);XB(I)
    • Try
      • R(G);CHECK,XP(c)
      • Refutation
        • B(d);XR(G)
  • Actual
    • B(I);
    • Threat
      • QAB(C)+S(F),XP(a)
    • Vars
      • K(b);CHECK,S_FLIGHT::QAB(C)+S(F)
      • K(b);CHECK,S_FLIGHT,XS(J)::B(B)+R(G)
      • P(c);SBLOCK,XS(J)::R(A)+K(D)
      • P(a);SBLOCK::R(A)+K(D)
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